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I have 4 APC UPS’s, three Back-Ups 1000XL’s and one Smart-UPS 1500; every two to three years I end up having to replace the battery when the UPS starts complaining that the battery needs to be replaced. Usually when I buy a replacement battery the battery usually has at the very least a 20% charge on arrival but in the most recent instance where I bought a replacement battery it appears to have a zero charge when it arrived. Not knowing how long this sat with a zero charge, is this something to be terribly concerned about or will I still most likely get 2-3 years of good use out of the battery?
Hi @normathome , Does it start to charge at all? As you said having zero charge is a concern because it may indicate other problems e.g. faulty battery. If it starts to charge allow it to fully charge and then check its performance under load i.e. simulate a power failure perhaps, as compared to your other batteries or what you know from experience with them. You may have to test and fully charge it 2-3 times to condition it again and then check. Is there a warranty with the battery? Perhaps you should contact the seller anyway and ask/advise about the battery’s condition when you got it.
