Comments for Reviews of 12 Volt Solar Battery Chargers

Comment on Reviews of Marine Solar Boat Battery Chargers 12 Volt by RGH

RGH — Sun, 25 Jul 2010 17:26:04 +0000

i have a 50 HP MOTOR (OUTBOARD) ON A CENTER CONSOLE BOAT IN A BOATHOUSE. I WOULD LIKE TO INSTALL A SOLAR PANEL ON ROOF OF BOATHOUSE TO KEEP BATTERY CHARGED. WHAT SIZE RECHARGER DO I NEED ?

Comment on Review of Solar Car Battery Charger Kits by jatinderlubana

jatinderlubana — Thu, 22 Jul 2010 14:33:55 +0000

there is no information about the price of solar objects,panels. we are working as inverter batteries sales . we want information about charging batteries through solar
panels . we also want information about solar lamps . we have to charge batteries through solar panels to conserve electricity and use the natural power of sun . could you send any information about this my ID is jatinderlubanagmc@ GMAIL.COM

Comment on Review of Solar Car Battery Charger Kits by jatinderlubana

jatinderlubana — Thu, 22 Jul 2010 14:21:51 +0000

there is a big problem of electricity consumption in India ,Punjab,Patiala . please give information about charging batteries 12volt 150amp to 180amp through solar panels .

Comment on Review of the Go Power! Solar Panel Kits and Battery Chargers by jim marker

jim marker — Sat, 17 Jul 2010 20:59:17 +0000

I have 4 6volt batteries hooked in series I would like to know how what I would need as far as a system goes to keep them charged while stored ? They put out about 225 amp hrs. each.

Comment on Solar RV Battery Charger Kits Review by esakki maran

esakki maran — Sat, 17 Jul 2010 13:46:39 +0000

i need some mini solar projects in home (minimum controlling the two lamps)

Comment on How to Use 12 Volt Portable Solar Powered Battery Chargers by Fred Dentremont

Fred Dentremont — Mon, 12 Jul 2010 20:19:16 +0000

I have 4 linked solar panels giving 60watts output.
A 7.5 amp voltage regulator.
A 400 watt 12volt input to 120 volt output inverter
Two 12 volt deep cycle batteries.
The inverted output runs my TV , dish and 13watt lamp very well.
Can I charge the batteries during the day, while running the TV and Dish with the inverter?
Can you safely charge batteries with a solar panel while there is an output load applied to them without damaging any equipment?

Comment on Solar RV Battery Charger Kits Review by plaidsportcoat

plaidsportcoat — Wed, 07 Jul 2010 17:09:34 +0000

Hi, I would like to know data about solar batteries without having to figure it out myself with a calculator, and I think in order to sell it, that is going to have to be the standard. For example, I have a marine cycle battery that I will be carrying in my minivan while I travel. I’d like to put a solar panel on top of the van and charge the extra battery with it while driving around. It would be really helpful if there were a table somewhere – I’m sure there is but haven’t found it yet. I don’t want to have to wait 50 hours to recharge the battery – which is what one site said it would take. There must be another option. Maybe I just haven’t googled the right phrase yet – but it would really help if there were one site that ALL solar manufacturers funded, that had all the info about a variety of configurations.
Thanks!

Comment on Solar Cell Phone Battery Charger Reviews by Portable Solar Chargers

Portable Solar Chargers — Mon, 05 Jul 2010 14:51:48 +0000

I quite like the look of the Solio. Would be pretty easy to carry around.

Comment on Solar RV Battery Charger Kits Review by Zin

Zin — Mon, 05 Jul 2010 06:55:19 +0000

This site include many information for solar charging.
I choose my solar cell for home and I was very impress about it
Suggest : http://solar-charging-kit.blogspot.com/
For more info

Comment on Customers Reviews of Coleman Solar 4.5-Watt 12-Volt Deep-Cycle Battery Charger #CL-300 by paul

paul — Sat, 19 Jun 2010 09:15:26 +0000

HERE IS THE TRUTH!!

Power = Volts x Amps
Therefore

Amps = Power / Volts,

So 4.5W/12v = 0.3A

A car headlamp is typically 60W, thats 5 Amps, a 12v flourescents is about 12w so therefore you need at least 1 Amp.
The maximum efficiency of solar panel is about 7-13%, with cheap ones about 3-5%,
therefore on a sunny day, its about 100W (uk) to 300W (asia) per square meter. Assuming the panel has a 5% efficiency, that makes the solar irradance between 5w and 15W per square meter (maximum possible), so if its perfect conditions you may get 4.5W. They say you get about 50-60% of the claimed power over a year, so lets take 50%, therefore 50% of 4.5W is about 2.25W. The reality is if you use this to charge your car battery, then you need to disconnect all the power cables onto the battery (because there is residual loss, eg clock, alarm etc), and keep it in the sunlight for weeks.
To be realistic you need between 40 – 80 Watt solar panel to get anything usable.
Hope this helps
Paul