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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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UPS batteries
Hi,
I don't have anything other than "gut feel" to resort to as evidence but it sure *seems* like most UPS designs EAT batteries! We rarely have outages here. So, there is no real draw on the batteries in our UPS's. So, they should just be on float charges. Yet, the batteries seem to wear out far too frequently, IMO. I could possibly understand regular outages cycling the batteries too deeply. And, chargers too aggressively replenishing them (after all, a UPS that quits because its battery wasn't fully recharged earns a bad reputation for its manufacturer). But, I can't see how even periodic battery tests (performed by the UPS itself) could be the problem -- unless there is something wrong with the approach being used? Can anyone with firsthand knowledge shed some light on this? I.e., what *is* the UPS doing to/with the battery when it is not being used to supply the load? |
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