I have 4 brand new 7ah battery's that I am testing. They all show about the same voltage under load and capacity with my tester. It shows they are 66% full.
I put one on my charger at a rate of 3.6 amps and let it run for 90 minutes. The charger was still blinking saying it was not fully charged. So I took it off charge and let it rest for 2 hours. When I tested it again it showed 91% capacity.
I charged the second battery at less then one amp and the charger shut off in 10 minutes. I tested it 30 minutes later and it shows 78% capacity.
I am a bit confused as I do not understand what the correct charging rate should be and if I should leave it at the higher amp rate or just let it stop at a smaller charge?
The 3 amp charge had brought the battery up from 12.9 to 13.3 and was still going. the lower charge rate at less then an amp stops running at 13 volts.
The Analyzer is certified so I guess I do not understand what I should be looking for in a fully charged 7ah battery? Do I trust the smart charger or do I trust the tester?

-Altrez
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