
Originally Posted by
Bear
How do you charge those Ozzy, in a regular UPS? Is there a way to test, and separate the good ones from the bad ones?
Regular battery charger on 1 amp trickle charge for a hour or less. Anything higher will over juice the battery and cause it to go boom since they not vented. Basically overheat them. Then use a regular battery load tester for your car and see if it passes.
That is the hillbilly method and works. Or juice them for 10 mins so a apc will recognize them. Then stick them into a apc and the apc should juice them up. After 12 hours, push the battery tester button and see if it passes. Only certain apc models have the load tester feature. Others will beep after a few mins if the battery is defective and cant be charged.
I prefer the car charger and load tester myself. You can also daisy chain using jumpers so you can charge multiple batteries at once. I just wouldnt juice them for more than a hour on a trickle charge. Because as I said, they are not vented and can heat up with a higher charge and explode!
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