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Sources and UPSs

Consultation on battery capacity for UPS APC Back ups pro 550

marcos1979
hace 5 años
hace 5 años
Hello people, I have a UPS APC back ups pro 550 that tells me a low battery continuously and it occurs to me to change it for a battery of different capacity. Specifically, the original battery is 12V 7Ah and the one I have is 12V 9Ah, both of the same physical size. Would there be any problem in making the change? Could the UPS charging system or something else be damaged? From already thank you very much!
servimat1
servimat1
138.835
hace 5 años
hace 5 años
Hi. The difference in current between the two is very small. You will not have any problem with the change. Do it with confidence only respecting the polarity of the battery. regards
marcos1979
hace 5 años

Well, I changed the battery for 9Ah (on the other hand I am making the claim to see if the warranty covers me since it is only one year old). What I notice is that, according to the monitoring software, the voltage remains at 13V since I installed it, but the percentage of load has been falling (it went from 100% to 73% currently installed but the voltage remains fixed at 13.0V , the backup time varies very little in the order of 8 minutes). Is it being calibrated or is there a problem?

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servimat1
servimat1
138.835
hace 5 años

Keep in mind that the battery being new will have its adaptation period with the successive charges and discharges. After a while you will see that its performance increases.

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marcos1979
hace 5 años

Sorry for the delay (I didn't get any notification !!!). It has already stabilized and it indicates an autonomy of about 12 minutes and remains at 13.8V. Thank you!!!

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servimat1
servimat1
138.835
hace 5 años

A pleasure that you solved the problem. regards

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Alaen
Alaen
2.336
hace 5 años
hace 5 años
The difference is that the 9a / h will last longer, the rest does not matter, load and work normally.
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