12 Volt 5 Watt Solar Panel

better question...
Which one of these are better?

http://shop.ebay.com/items/12%20volt%20s olar%20panel?_dmd=2&_sop=1

Keep in mind, I am on a tight budget. that is why I am thinking that I might be able

Nata's math is a little off - the units don't work out. If a 12 V battery does indeed have 50 wh of energy in it as he suggests (that sounds right to me), it will take 50wh/1.5w = 33 h. Nata converted to amps and then ignored the voltage rating of...

2009-04-05 13:28:50 by Israel Lover †-pray4revival-†

I won this 5 watt solar panel in a contest held by Robert Smith which ended at the end of July. I know I've had it for a while but finding ...

You need about 13.5 volts DC to fully charge a 12 volt battery. 24.5 volts DC will not fully charge two 12 volt batteries. You could charge the 12 volt battery with a simple charger controller, or or use a DC to DC converter to charge a 12 volt...

2009-12-05 12:02:51 by msnjon

hi can you use 2 x 12v 4 watt solar panels connected in series to power 2 x 120mm 12V DC Ball Bearing Fans as i got a small 2 by 3 mtr shed and i want to keep it cool during summer as in the side of my shed i have a aluminium vent with 2 x 120mm thin

You want them in parallel, not series.

Series (connecting the plus from panel 1 to the minus of panel 2) will increase the voltage to 24V.

Parallel (connecting plus from panels 1 & 2, and minus from panels 1...

2009-08-19 06:11:38 by kensmith1981

I have a solar panel that is 12 volts and produces 1.5 watts, and I am planning to get a solar panel with 6-14 volts and 1-1.8 watts. How can I wire it so It stays at 12 volts, but gets a better amp hour rating so the wattage goes up?
The...

when it says 6-14 volts you need to know what accounts for the variation. probably the level of sunlight. so it's very possible that your 12 volt panel will react the same way, but it's telling you 12 volts in average exposure. i would...

2008-05-30 04:21:54 by BookwormSY

This is a simple 5 watt solar panel that I am hooking up to a cigarette plug to charge my batteries on my truck that I don't drive much. The panel puts out 24 volts. How do I convert it to 12 volts?

Converters are shown in the link below.

However, most solar panels are 12 volts. I am thinking your have two panels connected in series to get 24 volts. It that is the case perhaps there is a way to wire them parallel instead of...

2008-05-19 13:24:44 by Joe N

It is a full-size model made in 1995. I can not find the watts usage but it is 60 hz and 6.5 amps at full load. I need to know what size inverter, how many deep cell batteries, and how much 12 volt power I would need to put back into the batteries to

Buy yourself a Kill A Watt meter or other home energy monitor and measure the fridge consumption for a full three days to get an average per day. That plus the number of hours of decent sunlight would tell you how many solar panels you might...

2009-03-08 23:22:01 by hunterman