UPS Batteries got dead

[Anonymous user]

Dear All,

I have purchased 2 units of APC smart UPS Rt-6000 XL. i placed one with my servers and stored the other UPS for backup purpose. Now i have got some problem in UPS that was installed initially with server and i have unpacked the backup UPS.

when i put that UPS on power it doesn't start charging even i have charge it for 15 to 20 hours but there is no response. i told my vendor and he checked the batteries and replied that the batteries are dead. How is it possible?

These are the dry batteries then is it possible that the batteries got dead without use?

Please help me in this regard as it a serious matter for me to justify to my manager.

Regards,
Rashid Ali

[BillP]

Good day Rashid,How long were the batteries in storage?The batteries were probably severely discharged during storage. The Smart UPS RT uses the Double Online Conversion Topology and in that topology, if the batteries are severely discharged, the UPS won't turn on. Even if you install the batteries and leave the UPS plugged into good utility power to charge, the batteries won't.

[BillP]

Hi,

you havent said how long the unit was in storage.

this link should help explain some of it

http://www.apc.com/solutions/display.cfm?id=1371A38E-2B31-B5C1-CADC3E466F676960&ISOCountryCode=us

we have had similar situations where we have had customer buying a ups then not using it for 12+ by the time it gets to the site and wonder why the batteries are not working.

also depends on the serial number of the unit - when batteries were made - to when they were shipped to supplier - then to customer

hope this helps

[BillP · Accepted solution]

Just use genuine apc batteries, you will see better results

Lol i have a set of back-ups batteries that are 8 years old and are still going very strong, Back in the day when apc upses where made in the U.S.A. 😛

At 8-years probably not the safest to use xD