I just replaced my old battery in my apc back ups 1100 because it sends out a constant tone and replace battery led is lit.
but then when i replaced it with the new one i bought the result is the on line led and the replace battery led is alternating together with constant tone.
i actually bought 2 new batteries and both of them had the same result, with this i tried to put back the ups's old battery and surprisingly its ok.
im a bit confused but i think the 2 new batteries that i bought is dead.
im hoping you could explain further to me what is the problem. thank you in advance
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