Quote:
Originally Posted by Eco Battery
The VOC and IMP are important for selecting the proper charge controller, but wont necessarily indicate how many amps your battery will get charged with. It’s all about watts. The math is watts/battery charging voltage 355/42=8.45A which gets you the theoretical max. Then for real world you have to reduce by ~20% for panel inefficiency and other losses. So on a clear day with sun directly overhead you may see 6.7A charging. This will further reduce based on sun angle and cloud cover. 3A-4A should be expected.
Don’t get me wrong, I love the idea of a PV panel roof, and already have carts with them, I just don’t want the expectations to be unreal.
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I know what your saying and your right, I have solar on my pop up camper and my house so im no stranger to the variations in output. From my experience though they can just as often exceed whats on the sticker when new for the first year or 2 as well but there are so many variables with a cart thats always parked in a different position and angle to the sun