Will a 4 watt solar panel charge a 12 volt battery while we are camping?
I like to camp out in the woods…no power. I am curious if the 4 watt solar panel will charge my 12 volt battery during the day if there is sunlight?
like this one? http://cgi.ebay.com/ebaymotors/VW-Factory-OBD-II-Solar-Panel-Battery-Charger-New_W0QQcmdZViewItemQQcategoryZ63687QQihZ010QQitemZ200109169312QQrdZ1QQsspagenameZWDVW you may have to copy and paste…
That all depends on what is your drain on the battery, I would classify a 4 watt as a trickle charger, only good if you are using a 2nd generation led. 4 example a compact flourescent light draws on average about 14 watts or so, so your 4 watt solar panel would have to get 100% effeciency for 3.5 hrs for every hour you burned the flourescent light, you do the math. I use a 45 watt system with led’s and it is more than powerful enough for my needs, the link below has a compete, backup/camping setup that would be a good starter set.
80 WATT SOLAR PANEL Grid Tie Inverter Direct Monocrystalline
