Solar power is continuously gaining momentum and popularity. There are now solar chargers designed to power cell-phones, cars, laptops, etc. The solar charger harnesses energy form the sun and stores the energy within its battery for later use.

Typically, a solar charger can hold on to its charge for up to a year. The advantage to using a solar charger is that it eliminates all of those unnecessary, bulky chargers for every electronic device.

It may be difficult to choose between the best solar chargers because there are a lot of great models out there that basically perform the same functions. Upon being fully charged, the solar charger can fill a cell-phone’s life twice or play up to twenty hours of music.

Our top market selection includes:

• Go Power! GPDL-20 20-Watt Self Regulating Unbreakable Solar Module
• Sunforce 60-Watt Solar Charging Kit
• Brunton 26 Watt Foldable Solar Array
• HQRP 20W Mono-crystalline Solar Panel

Solar battery chargers 101

Keep in mind that Your panel will produce 100% full wattage output when placed on direct sunshine

Before buying a portable solar power system, it’s good to answer these questions:

• How long would the solar panel take to charge a 12 volt battery?
• What’s the ideal wattage for a solar charger?
• How can I control if it works fine?
• Will it fry my battery?

Most models have an illuminated LEDs that lets you know the panel is charging. Other have a built in controller to block the charge when the battery is full.

When You buy one, You’ll get quick connectors like cigarette lighter adaptors and battery clamps.

Choose the right solar recharger

To explain in further detail about the conversion, basically an hour of sunshine will equal about an hour of music, or 25 minutes of conversation. The batteries in most solar units last up to about a year, and the charger works with numerous gadgets: Bluetooth, iphone, games, digital cameras, etc.

The charger is extremely light and easy to transport making it optimal for travel purposes.

The General rule to calculate the average charge time:

Take Amp/hour rating of the battery and Divide by the charger rating (in amperes) and then add about 10% for the extra time to top off the battery

I.e. Assuming You have a typical full size auto battery, it is about 50 amp hours.

To Calculate how much time You’ll need to charge the battery with a 15 Watt solar charger You’ll need:

1. Calculate the Ampere per hour of the charger: 15 Watts /12 Volts = 1,25 Amperes
2. Calculate the division: 50 amp hours / 1,25 ampers = 40 Hours of direct sunlight
3. Add 10%: 4 hours

A 15 watt charger is great for vehicles such as cars, boats, ATV’s, even electric fences. 7  watts are perfect for laptops and camcorders. A 2  watt charger is perfect for cell phones, ipods, and smaller cameras.

There is a formula to help describe the way solar energy works: the output for solar energy is described as watts. The wattage can be understood by multiplying the voltage by the amperage.

More specifically: volts x amps x watts = / e.g. a six volt 30 watt solar panel measuring ten by 22 inches has a voltage of about 8.55, and amperage of 1.75.

One can determine the correct amount of wattage needed based on how much each electronic device expels.

Solar Battery Controllers

In most case a solar charger controller is highly recommended. The Solar Controller will continuously monitor the charge and cut it off when charging is complete.

It helps in:

• Preventing overcharge
• Improve charge quality
• Prevent battery discharge in low or no light conditions.

Some solar panels are made with blocking diodes pre-installed they prevent battery discharge during low or no light conditions.

Once connected, you can charge your 12-volt battery nonstop for days without damaging the battery.

Inverters

Inverters turn DC (Direct current) power into AC (alternate current) power, the type of current that powers everyday appliances.

Final Suggestions

There is no need to buy multiple solar chargers for each electronic device owned, so invest in one with the best quality. If the solar charger is needed to power a lot of devices frequently, makes sure to buy an additional panel at about fifty dollars to ensure the maximum access to available sunlight; this panel allows for powering two laptops at once, and it should feel good to know that the electronic devices are functioning on renewable energy.

For cars it makes sense to purchase a solar charger that sits on the dashboard and soaks up the sun. These are not designed to jump start the car battery, but rather to keep the existing car battery at full charge and functioning.

Basically, if used properly it can extend the battery’s life, which of course saves money in the long run. Therefore, when individuals use many gadgets by plugging them up to the cigarette lighter, the solar charger helps against stress and fatigue that is placed on the battery.

Of course it is still possible to find one solar charger that supplies power to all electronic devices, including a car battery. As mentioned previously, there are many really good choices out there, so investigate properly, ask professionals which best fits their needs and enjoy the fact that you are participating in the usage of renewable energy, an environmentally wise choice.

Our top market selection includes:

• Go Power! GPDL-20 20-Watt Self Regulating Unbreakable Solar Module
• Sunforce 60-Watt Solar Charging Kit
• Brunton 26 Watt Foldable Solar Array
• HQRP 20W Mono-crystalline Solar Panel

You don’t need to hire a professional to plan a solar photovoltaic system for your RV. Using these steps, you can plan the perfect system on your own and calculate how long it will take to pay for itself.

Our top market selection includes:

• Sunforce 60-Watt Solar Charging Kit
• Go Power! 95 Watt Solar Kit
• HQRP 50W Mono-crystalline Solar Panel

This guide is articulated in sections where each section explains a specific question.

- Estimate the Total Power You Need
- Calculate Your Total Power System Size and Cost
- Get an Estimate on Energy Savings and Payback

How can I increase the autonomy power of my motor home?

In a camper electricity and water are precious. We must therefore learn to save without depriving the indispensable.

To increase its autonomy, for example, you can install a solar panel. Who stays a week in the same place needs to find a way to recharge the batteries, and a good solution is the solar panel.

Be aware that they are expensive and fragile, just the branch of a tree to break, and is an additional weight.

We also need to park in the sun, if you parked in the shade not serve. If we want to increase the autonomy of our campers we can increase the number of panels.

Estimate the Total Power You Need

Get a pen and notebook. List every electrical device: each light, all chargers, TV, washer, dryer, microwave, A/C, etc.

List the wattage used next to the item, and indicate whether they are AC (alternating current) or DC (direct current, as in battery powered). Make two columns if you need to. List how long each device is used and multiply the hours used by the wattage to get the daily total used.

Add the total current needs in each column, and the total needed overall. Although this may seem daunting at first, it really is easy to do.

Decide if you want to run the items directly from the solar photovoltaic system or if you’ll use the system to charge a battery bank first then use the power. Those appliances labeled as AC will need an inverter to accept the DC power directly from the batteries. Inverters are available for individual appliances or for entire AC systems.

What and how should I install the solar panels on my camper?

A photovoltaic system area is based on:

• One or more photovoltaic panels
• A charge regulator to measure voltage and current
• A battery.
• 1 Mounting kit
• 1 Display light to see the different levels of solar energy
• 1 Parallel to keep the battery engine charged after the service battery is loaded from solar
• 1 Set of cables to connect the panel on the roof and maintai an excellent insulation against the infiltration of water from the roof.

How can I calculate the real power of a panel?

To calculate the power and let it work nearly 100% we need to consider:

1. Intensity of solar radiation (sunshine). The highest value is obtained only in exceptional weather conditions and practically never in real situations.
2. Temperature of 25 ° C but we all know that in a day of exceptionally high sunshine for sure the temperature is above 25 ° C. Higher temperatures cause a decreasing of the performance of the panel.
3. Incidence of perpendicular sunlight.

Calculate Your Total Power System Size and Cost

Calculate your total RV photovoltaic power requirements by using the following information located at: http://www.energysavers.gov/pdfs/208.pdf, and the following formula:

By using the correct incline of the rooftop panels, you can easily calculate how much energy can be collected and the correct number of panels needed for your RV.

Sound hard? Not really.

Let’s say, for example you’re going to stay in Arizona. A single 200-watt solar panel could provide you with 16,000 watts of power every day (with 8 hrs sunlight). Using your wattage total for your appliances (i.e., 80,000 watts/day) you’ll need a total of 5- 200 watt solar panels. The total cost for those will be $3,475.

How many solar powered panels?

Example 1: Big motorhome then big consumer

• Using 2 lights, refrigerator, TV, VCR, etc.
• Having 3 evenings of autonomy in summer, 2 nights in winter
• Power panels: 140 watts with adjustable solution
• 180 watts with non-adjustable

Example 2: Average consumer

• Power: 90 watts with adjustable solution
• 110 Watt not adjustable

Example 3: Small consumer mini camper

• 50 Watt power adjustable
• 65 Watt not adjustable

What’s the right wattage for caravans to run lights, TV etc?

In choosing the type of panel you can follow the following guidelines:

• 80 watt panel: It ‘a small plant, ideal for those who use the camper mainly in the warmer months and not use auxiliary utilities such as CTV or fans.
• 125 watt panel: The ideal solution for those who use the television.
• 140 watt panel: It represents the best solution for anyone, making use of summer vehicle, stopping long ago and wants to have a good availability of power for various accessories.
• 2 panel of 125 watt: The choice we recommend to all those who have a refrigerator compressor, or make an intensive use, even in winter.

Get an Estimate on Energy Savings and Payback

The economic benefits of an RV photovoltaic power system are easy to figure. Total how much in electricity costs you spend on your RV each month or as a year total.

Divide that figure into the cost for your system. This is the estimate of how long it will take the system to pay for itself. Keep in mind that this is a base figure. It doesn’t take into account the cost of electricity from one county or state to another. Since electricity costs are rising, you can easily estimate the payback time while you use your RV and enjoy free energy at the same time while using a notebook with “savings to date” listed.

How to install the solar panels?

The ideal would always have the sun perpendicular. This is achievable only with a rotating and tilting variable, but this is not always possible.

Our top market selection includes:

• Sunforce 60-Watt Solar Charging Kit
• Go Power! 95 Watt Solar Kit
• HQRP 50W Mono-crystalline Solar Panel

Solar powered cell phone chargers can be a better alternative to electrical cell phone chargers. You have to plug in your cell phone to a home outlet and then you have to wait a long time for your cell phone to be charged.

The charging of your cell phone takes electricity and the electricity costs money. It seems that you need to pay your mobile cell phone service provider for using your cell phone and you also have to pay the electric company for using your cell phone.

You are out of luck if you are outdoors and your cell phone battery dies. There are hardly any places that will let you plug in your cell phone in order to charge it.

This is one of the reasons why a solar cell phone recharger is for you. You can charge your cell phone battery outdoors if your cell phone dies. It is true that you need sunlight in order to charge your cell phone, but most solar mobile phone chargers come with a storage device so that you can charge your cell phone even if there is no sunlight.

How Much Time do I Need to Full Charge?

General Rule to estimate total hours of direct sunlights to full charge: (Amperer per Hour of the Battery / Amperes per Hour of the Charger) + 10%

Assuming You have a 5 Watt / Hour Cell Phone Battery (like the one of Sony Ericsson Kurara, Nokia N900 or Razr V3)  and a 2 Watt output solar Charger, You need first to convert Watt in Ampere:

Ampere= Watt/Volts

It’s about 5/12 = 0.417 Amperes per Hours for the batery and 0.167 Amperes for the charger

To Calculate how much time You’ll need to charge the battery with a 2 Watt solar charger You’ll have:

1° Calculate the Ampere per hour of the charger: 2 Watts /12 Volts = 0.167 Amperes
2° Divide 0.417 amp hours (cell phone batery) / 0.167 ampers (solar charger) = 2.50 Hours of direct sunlight to full charge You cell phone Battery
3° Add 10%: 2.75 hours

Result: You’ll need an average of 3 hours of direct sunlight to full charge Your cell phone battery using a 2 Watt solar charger or 30 minutes if You have one of 18 Watt.

What to Look for Before Buy

There are many kinds of solar cell phone chargers. When choosing a solar cell phone charger look for one that is best adjusted to the kind of cell phone you have.

Find a cell phone that is useful, reliable and that is affordable.

The ISun is one of the best solar cell phone chargers in the market. This solar module comes with two watts of energy output. It is reliable when going on a long trip and there are no places to charge you cell phone.

The iSun can also charge navigation systems, iPods and other small electronics up to two watts of energy. If you need to power another small electronic device of more than two watts the iSun allows you to plug in one or more iSun devices for more energy.

It is only of any use if there is no other source of power

The Portable Solar Charger for Cell Phones is a great acquisition that saves both money when charging your cell phone and money when buying this exciting gadget. The solar charger can be powered via the sun with, a USB cable or directly to the wall.

This portable solar charger comes with one solar cell. The output voltage is 5.5 volts and it is compatible with most brands of cell phones (like Blackberry and LG).

The Solio Classic is ideal for those people that are constantly moving around. It uses both electricity and solar energy to charge your phone. It offers 20 minutes of talk after an hour period of sunshine.

The batteries are replaceable and they last for up to one year. The Solio is perfect to power other hand held devices.

Solar cell phone chargers can help you save money on cell phone usage over a year’s period. They are handy devices that provide energy to your cell phone when your cell phone dies.

Cell phones are an important part of people’s everyday life and lots of communications are relayed through a cell phone that is why having a good cell phone charger is important.

Read More:

• Boost Mobile Phones has a lot of  Tricks & Tips, Free BlackBerry Software, Free Themes & Ringtones, News & Updates
• 1800mobiles.com has a great selection of cell phone chargers
• Wireless Emporium has a great selection of mobile phone chargers by brands

Solar chargers for cars are becoming the most probable choice for powering cars and this is perhaps due to the convenience they create.

As you drive, the solar charger will be charging your car battery and the best thing is that as long as you connect your battery to it, your battery cannot die simply because the car has not been driven for a while.

Use of solar chargers for cars is both economical since you use the sun which is a free resource and also environment friendly.

To benefit more from your solar charger, just make sure you place the panel on the windscreen where it can receive the sunlight well.

To connect it, there are crocodile clips provided that you can use to connect directly to the battery or via a cigarette lighter socket.

A solar charger for your car should be powerful enough for reliability and this means its power output has to be very high.

Sunsei SE- 150 solar charger

The Sunsei SE- 150 will charge your car if it has a 12V battery. The charger has a 2.5 Watts, weighs about 410g and uses current of 0.2 A. It is used for lightweight automobiles such as cars as well as small boats and motorbikes. Sunsei SE- 150 solar charger is easy to connect and mount and never overcharges your car battery. It comes with a 4ft cigarette lighter adaptor cable and a 10ft battery clamp cable together with 4 suction cups hence you can connect it with the cigarette lighter socket or crocodile clip.

1W solar vehicle trickle charger

This will help keep your battery strong when parked and charges a 12V battery car. It is weather proof and you can either connect it directly to the battery or with the cigarette lighter cable available. This solar charger for cars weighs about 0.45kg and is safe for your battery since it does not overcharge. It is powered by an integral solar panel.

ICP Sunsei Se-500

This is best suited for larger vehicles and is a 7.5 Watt charger and would keep your vans, pickups and other large vehicles’ battery up when not in use. The panel of the ICP Sunsei Se-500 charger employs the latest technology. It comes with its complete set of accessories and it does not overcharge your battery hence safe for use. It is weather resistant hence ideal for extreme weather conditions such as snow.

One of the best ways to generate electricity is by using solar energy. Solar battery chargers are now widely used, are easy to install and can work for very many years without any problems.

They are usually packed in a kit that has a solar panel, battery pack, conversion technology needed and any necessary wiring.

Boat Usage

They are used on boats to guard against any natural electronic drain and battery discharge. These solar chargers for boats are made using designs that are weather proof so they cannot be easily damaged while in the water.

Solar chargers can be used on boats for any complimentary electronic gear that may need to be used while the boat is out on the water.

The complimentary gear

The complimentary gear includes communication and entertainment devices, fish finders and sonar. There are some full kits that are available to run this electronic gear on the boats.

The solar chargers can also be used to charge the boats’ batteries and this usually comes in a different kit from the ones used to charge the electric gear.

The kits have some solar panels that you can mount in various locations on your boat. The panels are connected to a controller unit that will charge the battery.

A solar power charger works well on a boat because the solar panels are very well exposed to the sun while on the water and this reduces the amount of time it takes for the batteries to be charged.

Some of the panels that are used for charging boats have integrated batteries that function as power packs. You can charge this internal battery then use it to charge the gear on the boat or the battery used to run the boat.

The panels that do not come will require a converter to switch the power supply and also regulate the voltage on your battery by stepping it up or down.

Know Before You Buy

When choosing the solar charger, you need to know the kind of battery that you have but in most cases, one charger will work for any gear or battery except if it is for Gel Cell.

It is also important to calculate the wattage on the solar charger by knowing just how many Ampere per hours the battery stores.

Choose a charger that has a solar controller so that it will monitor the charging on a regular basis and stop it once the boat or the gear is fully charged.

How to Calculate Charging Time

Assuming You have a 115 Amperes hour battery and a 15 Watt solar charger, this mean You’ll need nearly 92 direct sunlight hours to full charge it if it’s completely empty (this mean You’ll need 11 days to full charge the battery).

If Your only purpose is to avoid battery drain while the boat is not used, than the solar charger combined with a charge controller makes a great job.

Description: The Brunton Solaris 26 Watt Foldable Solar Array represents the next generation of foldable solar arrays.  It’s a very usable portable power that uses the sunlight optimizing portability. It’s useful for charging car batteries, laptops, digital cameras or cell phones.

Uses: It charges/runs devices such as MP3 players, cell phones, digital cameras, PDA, battery chargers and 12V accessories. Also useful for trickle charges and to maintains car/RV/marine batteries charged.

What I Liked: It’s well designed for portability and its output is good enough to charge and power all common gadgets (laptops excluded, it gives only extra time to the battery but it not fit to power it fully).

What Needs Improvement: Having a battery pack (internal battery) and a charge controller would be a great choice. The panel is good but need to be a fully portable solar power pack.

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Ratings in Details

Package & Design: One of the really cool things about this is that it will fit easily in your briefcase or bag.

Installation: The panel is very easy to use and comes with multiple adapters.

Price: It has a good price considering the quality of this tool and cost savings of not having a “fried battery”

Installation: Nearly 300 dollar are a guarantee of great performances, but for me this is too much considering it need an internal battery and don’t have a charge controller.

Performances: Reading around some consumers reviews, I’ve found most positive impressions like: Charging two Olympus BLM-1 batteries simultaneously, in a couple hours in sunny conditions and in six hours in cloudy conditions.

It wouldn’t power a laptop computer. Charging a cell phone with a dead battery to full charge in less than an hour. An 12,000 mAh battery can take 10 hours to fully charge.  Charging a laptop battery with the laptop turned off (4 – 6 hours recharge time).

Here a simple table:

• Portable DVD – Run/Charge 1-3 hrs
• PDA / MP3 player – Run/Charge 1-2 hrs
• Satellite Phone – Run/Charge 1-2 hrs
• Portable Game console – Run/Charge 1-2 hrs
• Digital Camcorder – Run/Charge 1-2 hrs
• RV/Car/Marine battery – Charge 12 hrs

Dimensions: Overall dimensions: 21.5″x37.5″ ; Overall dimensions folded: 11″x8.5″x1″ ; Weight: 28 oz

Usability: It’s simple, connect the 12 V vehicle power outlet receptacle to the Folding Solar Panel. Insert the adapter (male) included with the hand-held electronic device or battery charger into the 12 V vehicle power outlet. Place the panel in direct sunlight.

One of the drawbacks of the solar array is that it cannot store any power itself.  It can harness and use the power of the sun, but once you pack it up, nothing is saved.

It has not a charge monitoring system so you need a charge indicator like a volt meter. It has a built-in reversing diode and charge regulator that prevents the solar array from discharging your battery at night.

Made in USA?: Imported.

Accessories: To charge boat auto batteries You need to purchased the Brunton Solar Controller to utilize it (or another solar controller). To use the Solaris with a laptop you need to purchase a 12V cigarette lighter adapter. To have a portable power you need to purchase the solo power pack, an internal battery (10 times bigger than a PDA battery) to let you store the sun power.

Other models:
BR-SOLARIS 52   52-Watt Solar Panel  . . . . . . . . . .$649.00
BR-SOLARIS 12   12-Watt Solar Panel . . .  . . . . . . .$195.00
BR-SOLARIS 6     6-Watt Solar Panel . . .  . . . . . . . .$109.00

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Overall Rating:

Description: It’s a panel designed to avoid natural battery discharge or electronic drain in all deep cycle batteries (RV, boat, truck, mobile home, car).  The solar charger start working when exposed to daylight. An illuminated LEDs lets you know if the panel is charging. You can fix it near a constant sunlight source.

On This Page

• Uses
• Where to Buy and Coupons
• Ratings in details
  • Price
  • Performances
  • Dimensions
  • Usability
• Accessories
• Share Your Thoughts

Uses: Keep charged all deep cycle batteries

Where to Buy & Coupons: Amazon

Ratings in Details

Price:

Nearly 100 Dollars is a good price considering its performances and wattage.

Performances:

The solar panel doesn’t have the wattage to do a complete recharge a deep cycle battery in 1 day. One of the drawbacks of this panel is that most people have noted a discharge on the battery after the charge indicator is off, even though the connected devices are either turned off or not plugged in. To avoid this battery drain the solution is to add a switch.

Dimensions:

Length:41.34 inches Width:18.31 inches Height:2.95 inches

Usability:

It has a blue indicator light on it that shows that it is working.

Made in USA?: Imported.

Accessories: Brunton Solar Controller 12-Volt Battery Charge Monitor

Share Your Thoughts: If you’ve bought the Coleman 18 Watt Battery Charger, tell us what you think.

Note: Comments in the resources section may occasionally be pruned.

The Go Power! Solar Chargers are produced by Carmanah Technologies Corporation. Since 1996, the company has been designing and manufacturing renewable energy and energy efficient products for a wide range of industries. In the process, they have garnered many awards for innovation and customer satisfaction. The company produces several solar chargers intended for recreational vehicles and campers.

The Go Power! GP-RV-80 is an 80 Watt solar kit with a 25 Amp digital regulator capable of handling 395 Amps of solar energy. The solar panel is constructed of high efficiency polycrystalline, and the kit includes all the hardware needed to mount the panel on the roof and a 25 foot cable for connection.

The unit is designed to provide up to 4.6 Amps of charging power to the battery each hour, or up to 196 Amp hours weekly based on good sunshine. Even on an overcast day, the unit will provide some charging power; one user reported he obtained 1 Amp per hour on a rainy day. Purchasers of the product have stated that the batteries are normally fully charged by ten in the morning, and that it eliminates the worry that long camping trips can generate.

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The Go Power! GP-RV-95 also has a 25 Amp digital regulator and is a 95 Watt unit. It produces 5.45 Amps of charging power to the battery each hour and an average of 228 Amps weekly. It features a high efficiency solar panel of monocrystalline construction, all hardware need for mounting the panel, and 25 feet of cable for connecting the panel. The regulator can handle up to 395 Amps of solar power.

The panel has some charging ability even on overcast or rainy days. This is one of the smallest units, in terms of dimensions, on the market today. Purchasers who have placed these units on travel trailers have been extremely happy with the unit, and appreciate the display which shows battery voltage and how much current is flowing to the battery from the panel. They also state that adding additional panels, if needed, is easily accomplished and does not require replacing the regulator.

For those whose needs are less demanding, the Go Power! GPDL-20 is a more economical unit that is self regulating. It features a polycrystalline solar panel that is virtually unbreakable and a cigarette lighter adapter to facilitate connection. The unit provides approximately 1.2 Amps of charging power each hour. The battery can be connected directly to the solar panel, so the unit is basically “plug and play.”

Go Power! Solar Chargers can be more expensive than comparable units made by some other companies. This is especially true if suggested retail is paid. However, there are sites online that offer the units at a deep discount, making them more competitive from a price standpoint.

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Sunforce manufactures a wide variety of solar energy equipment and accessories. Their products are among the most economical choices on the market. The combination of quality and economy make many of their solar kits ideal for novices who want to experiment with green energy before making more serious commitments.

The Sunforce 50032 is a 15 Watt solar battery charger. It will help maintain a charge on any type of 12 Volt battery from automobiles to electric fences. It is easy to install, requiring only placing the panel in the sunlight and plugging into a 12 Volt cigarette lighter.

Hunters have used these to power deer feeders, and homeowners use them to power pumps on water features, provide lighting and power to sheds, and charge lawn care equipment. They are also used for keeping the batteries charged on RVs, boats, and tractors.

The manufacturer rates them at an effective temperature range from minus forty to 176 Fahrenheit, and suggests the use of a seven Amp controller with them. This model is highly praised by most who have purchased it, although some have mentioned that it does come with a charge controller despite information on some sites that it does not.

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The Sunforce model 50012 is a 1.8 Watt solar battery maintainer. It is connected through a cigarette lighter or directly to the battery with alligator clips. Uses include RVs, boat batteries, ATVs, and many others. It is designed to prevent the drain of a battery when it is left idle for a period of time.

Many users report it is ideal for RVs, boats, and other vehicles that are not started for weeks or even months. It can also be used to prevent battery drain while charging cell phones or other small items. The unit is intended for use in a vehicle’s interior and is not waterproof.

It is not meant to restore a battery that has been completely drained. Protection against overcharging and discharging overnight is included. Users report that it is effective even when the skies are overcast but needs full sun for maximum effectiveness.

Purchasers have been overwhelmingly positive in their reviews. Negative comments have included damaged products and poor customer service. There have also been a few negative reviews from those whose expectations were not in line with the product description; it is unlikely to restore a dead battery to life and it is not intended to be exposed to the elements.

The Sunforce model 50022 is a 5 Watt solar trickle charger. It can be connected through a cigarette lighter or with alligator clips directly to the battery. It is often used for cars, personal watercraft, and boats. This model is a trickle charger, meaning that it supplies a limited amount of energy, designed to replenish drain on a battery rather than recharge one. The unit is weatherproof and features discharge and overcharge protections.

Users report it has plenty of power to keep car batteries from being drained while recharging small motors or electronics. Like all solar panels, output is limited on cloudy days. Purchasers are mainly positive in their reviews, and many have made comments that the unit exceeds its rating.

For example, one user reports that he uses it to power his television, laptop, and light while camping. The main complaint lodged was that the units were received broken, with cracked glass or broken connectors.

For those who are ready for a bit more power, the Sunforce 50044 60 Watt solar charging kit may be the solution. This kit is economically priced and offers up to 60 Watts of power. It is designed for use in RVs and boats as well as remote cabins, as a supplemental power source for homes, or to provide power for a campsite.

The units are waterproof and are rated to survive hailstones impacting at up to 50 mph. The kit contains four panels that are intended to be mounted on the included frame. It also comes with a seven Amp controller, a 200 Watt power inverter, and wiring. Reviews are primarily positive, especially in areas of the country that receive a lot of sun.

One user reports that his powers two marine batteries, two laptops, and cell phone chargers without ever running out of juice. Other users praise the ease of installation and the fact that everything except the batteries is included in the kit.

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The HQRP 15 Watt Monocrystalline Flexible Solar Panel is rated for 18V maximum power, with 0.8333 Amps maximum current. This lightweight unit is highly efficient and its junction box offers silicone protection from moisture.

Often used to maintain the batteries in golf carts, RVs, and boats, the unit is ideal for both indoor and outdoor use and for use when traveling. Economically priced, the unit is also available with a free mouse pad. Reviews of this product are favorable, and many purchasers expressed surprise at the quality of the unit considering its economical price.

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Shop for Deals on HQRP 12 Watt Solar Panel

The HQRP 12W (Size of 10W) Monocrystalline Solar Panel provides a maximum 17.2 Volts and 0.7 Amps of maximum current. The aluminum frame helps make this unit lightweight while protecting the unit from damage. The junction box has silicone protection to prevent moisture from entering, and the solar cells are protected by tempered glass.

The back of the unit is fully sealed against moisture and to help prevent physical damage. Purchasers report using this very economical model to power outdoor lighting, maintain charges for lawn tractors, and power water pumps at remote cabins. They also praised the way the unit works in low light situations and the quality of the packaging provided by the manufacturer.

The HQRP 50W Mono-crystalline solar panel offers 17.6V maximum power and 2.98 Amps of short circuit current. It features an aluminum frame, which is sealed against moisture. The high quality tempered glass protects the solar cells from damage, yet the entire unit is lightweight.

The panel can be used for keeping all types of 12 Volt batteries charged and ready to go. Customers who have purchased this unit were impressed with the quality of the materials and construction, as well as the performance of the panels. They report that they work even when conditions are cloudy.

The HQRP 20W Mono-crystalline solar panel is rated at 17.2V maximum voltage and 1.3 Amps short circuit current. It has a lightweight aluminum frame, with a junction box sealed against moisture with silicone. Tempered glass protects the solar cells, while the rear of the unit is sealed completely against moisture.

The surfaces of the photovoltaic cells are enlarged to boost power output beyond the 20W rating. These units have been used to provide lighting for remote cabins and campsites, to keep RV batteries charged, and to provide lighting and small electronics charging for campers.

Purchasers are impressed with the performance received, especially at the price, as well as the care the manufacturer takes when designing the packaging to make sure the units arrive in perfect condition.
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