AP9617 lithium battery

[Anonymous user]

I was wondering what does the lithium battery do on the AP9617 management card. If I remove it, all the configuration is still there. What purpose has lithium battery on AP9617 management card?

[voidstar_apc]

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I was wondering what does the lithium battery do on the AP9617 management card. If I remove it, all the configuration is still there. What purpose has lithium battery on AP9617 management card?
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It powers the real-time clock.

[Anonymous user]

Thanks, that's what I suspected as well 🙂

[voidstar_apc]

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My old SU2200NET/AP9617 combo is of 1999 vintage. I guess it's about time to replace it.
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I wouldn't worry. Unless you've left the card out of the UPS, it's been on wall power most of that time. Datasheet for the part is here.

[BillP]

i've never replaced it either..i think they have something like a typical 10-20 year lifetime don't they (for this type of application)?

[BillP]

That's good to know. How do you know if it needs replacing? The AP9617/18/19 manual, the version I have at least, is totally silent on the battery other than when discussing recycling. Thanks in advance!

[voidstar_apc]

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How do you know if it needs replacing?
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I've never had to replace it. I suppose if the card loses track of time during a power outage, it's worth replacing the battery.

[BillP · Accepted solution]

My old SU2200NET/AP9617 combo is of 1999 vintage. I guess it's about time to replace it.