Amp/hour test is way off-
I have installed two NAPA 8145's rated at 6v and 226a/h each. I'm testing to see how long they last with an Isotherm C-85, 3c/ft, 12v refrigerator, consuming an average .8amps. I assumed it would ...
Forum Discussion
Don, may I borrow and change your statement to enlarge it a bit?
"Voltage is the "great pretender". I'd suggest getting a proper temperature compensated specific gravity device and use that to determine state of charge"
Third to last word can be changed to CALIBRATE. Meaning, it the specific gravity can be interpolated as a state of charge in low amperage discharge conditions, FOR A WHILE. This is not reliable as a month after month reference. But calibrating and correlating specific gravity to voltage is viable. Note my reference to "low amperage conditions" in honor of Mr. Peukert.
"Voltage is the "great pretender". I'd suggest getting a proper temperature compensated specific gravity device and use that to determine state of charge"
Third to last word can be changed to CALIBRATE. Meaning, it the specific gravity can be interpolated as a state of charge in low amperage discharge conditions, FOR A WHILE. This is not reliable as a month after month reference. But calibrating and correlating specific gravity to voltage is viable. Note my reference to "low amperage conditions" in honor of Mr. Peukert.
