Cheap China Solar Controller Failure
For a couple days been noticing higher than the 14.6 voltage,.....going to 15, and even 15.5,....I knew something was not right. The next day it was showing 16, then quickly went to 17+.......I quickl...
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There must be some sub-tile thing I don't understand, but I thought watt hours and amp hours would come out the same after conversion. Some people here have used the watt hours of their batts instead of AH and it all works out for them somehow.
Salvo, even if you use AH, you still don't know how many went into the battery and how much was lost to heat with "accuracy" AFAIK.
I use my Trimetric AH counter as an indicator and cross-check that with my "morning voltage" which is "close" to resting voltage before solar wake-up and the furnace is not on at the time. It is all just to keep track "close enough" while camping.
The hydrometer is the real decider but even it is tricky, where you have "SG lag" on a recharge. All is down to interpretation and experience with your own set-up to know what is going on "near enough."
Cross-checking is important though, as with anything. Even the multi-meter goes off kilter and reads high when its battery starts to fail. It can take a while before it gets so bad you notice the readings are too high unless you are cross- checking somehow.
Salvo, even if you use AH, you still don't know how many went into the battery and how much was lost to heat with "accuracy" AFAIK.
I use my Trimetric AH counter as an indicator and cross-check that with my "morning voltage" which is "close" to resting voltage before solar wake-up and the furnace is not on at the time. It is all just to keep track "close enough" while camping.
The hydrometer is the real decider but even it is tricky, where you have "SG lag" on a recharge. All is down to interpretation and experience with your own set-up to know what is going on "near enough."
Cross-checking is important though, as with anything. Even the multi-meter goes off kilter and reads high when its battery starts to fail. It can take a while before it gets so bad you notice the readings are too high unless you are cross- checking somehow.
