battery charging shows 0% and not charging
battery shows 75% charged but won't take over when unpluged
Try downloading Coconut battery and see what the diagnosis is on the battery. http://www.coconut-flavour.com/
Coconut battery doesn't tell you whether the battery is good or not -- it just tells you the percentage of charge and tells you whether it's charging or not.
It also tells you the battery capacity, how much mAh it can hold, thus if it can hold a charge or not.
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