I've got a bit of a different battery issue. I bought a Sidecar memory module for my 8201 last year. It had a dead backup battery and I replaced it with a new Panasonic lithium battery (same thing that was in it) which is supposed to last 10 years. 8 months later and It's now dead. I either bought a bad replacement battery or there is a phantom load somewhere. So I'm reaching out to those of you who have one of these units. What kind of battery life do you get?
Kurt
