If you put your K3 in the "factory diagnostics" mode, you could get those details from the battery management system.
But that isn't possible (that I know of) when the K3 will not run.
Perhaps someone else can do that and report.
I'll save you searching for the "HowTo" -
Put the (empty is ok) filename: ENABLE_DIAGS in your USB storage area, unplug USB cable, re-boot the K3. Wait. No, you didn't break it. Wait some more.