solar charger effectiveness
Does anyone know offhand how effective this thing would be? Say, one 12 volt battery. http://www.campingworld.com/shopping/item/nature-power-solar-battery-charger-kit-18-watt/56006 I have two 1...
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18W is good for ~250 or 300 AH battery bank in storage. So - yes, 2*6V batts. It probably doesn't have any current regulator, only a night-time diode. For a car battery you can go with a smaller 5W-10W charger.
There are few issues with these 1W-20W chargers:
1) Not weatherproof, can short or corrode in rain.
2) Not temperature-proof, plastic casing can melt in a hot sun if left under windshield.
3) Poor quality crocodile clamps, they corrode in a matter of weeks even when there is no rain - because of chemical reaction on battery contacts.
There are few issues with these 1W-20W chargers:
1) Not weatherproof, can short or corrode in rain.
2) Not temperature-proof, plastic casing can melt in a hot sun if left under windshield.
3) Poor quality crocodile clamps, they corrode in a matter of weeks even when there is no rain - because of chemical reaction on battery contacts.
