You check the battery cache status in the SST.
1. Type: STRSST
2. Login with your SST username and password
3. Option 1, Start Service Tool
4. Option 7, Hardware Service Manager
5. Option 9, Work with resources containing cache battery packs
6. Option 5 on the resource that you want to check the status on.
Regarding Slack400’s response…BE CAREFUL.
I (in hindsight rather stupidly) left the original IBM battery backup on my V5R2 machine (circa 2001) waiting for a message to come up to replace it when necessary.
One day one of our ladies said she noticed a “burning smell” from the computer room. NEVER a good sign! The pack had gotten SO HOT (i mean unbelievably hot) that it took 20 minutes before we could handle it!
I talked to the OEM and he indicated that although the pack was very sturdily built, they have a definite life cycle, in his experience, it’s downhill after 3 years, and then must be replaced. We were WAY outside of that. And yes, they can definitely melt down.
We’ve had similar problems with older small supplies backing up PCs. But larger batteries generate significantly greater heat when they short out.
So just recognize the downside of squeaking more life out of these devices.
Note that the question is about cache batteries, not “backup” batteries. Cache batteries can almost always be placed back in service after their first cycle and reset and used until a replacement can be obtained.
But for <b>any</b> battery, it’s always a good idea to to replace it after the end of its service life.