Capacity Testing and 20 HR Rating
I'm thinking about doing a capacity test on my four GC2's. They have a 20hr rating of 215Ah. One thing I'm curious about is how the 20hr rating would have been determined. Being 6v, would they h...
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Mex, Not sure if you were referring to me, but I upgraded the aluminum 12awg wire to 8awg tinned marine wire on my GT power meter which does measure watt hours.
http://www.amazon.com/Amps-Power-Analyzer-Precision-Meter/dp/B00MIFF26W/ref=sr_1_2?s=hi&ie=UTF8&qid=1432319518&sr=1-2&keywords=gt+power+130
There are many such devices available.
I have two of them, rewired, and they do not agree with each other as close as I would like, when plumbed inline.
It can only count current flow in one direction, and only counts so high before flipping back to zero.
Even with the 8awg I would not pass more than 40 amps through it for any length of time.
The screwy 31 sure needed a lot of extra energy forced through it to get to near maximum specific gravity. However if this was not done, performance suffered, and ultimately ~465 cycles is not a horrid figure for such a battery Mostly the extra energy was derived from solar so it was not as if the energy company made any extra profit.
As it was likely one of the better 12v deep cycle flooded car jars available, I'm done with cycling car jars, and modifications are being made to accept a taller battery.
http://www.amazon.com/Amps-Power-Analyzer-Precision-Meter/dp/B00MIFF26W/ref=sr_1_2?s=hi&ie=UTF8&qid=1432319518&sr=1-2&keywords=gt+power+130
There are many such devices available.
I have two of them, rewired, and they do not agree with each other as close as I would like, when plumbed inline.
It can only count current flow in one direction, and only counts so high before flipping back to zero.
Even with the 8awg I would not pass more than 40 amps through it for any length of time.
The screwy 31 sure needed a lot of extra energy forced through it to get to near maximum specific gravity. However if this was not done, performance suffered, and ultimately ~465 cycles is not a horrid figure for such a battery Mostly the extra energy was derived from solar so it was not as if the energy company made any extra profit.
As it was likely one of the better 12v deep cycle flooded car jars available, I'm done with cycling car jars, and modifications are being made to accept a taller battery.
