IBM Thinkpad X31 dummy battery blockoff plug.

Archived from groups: comp.sys.laptops (More info?)

My answer to the same problem on various laptops is to buy an as-is
battery off eBay. You can leave it in there and not care about killing
it, since it's probably already not too good. Plus if there is a power
failure, you'll probably get a little time out of the "sacrificial"
battery, which you won't out of a plastic plug.

On occasion I've made my own weight-saver by pulling all the cells out
of a battery and gluing the shell back together, too.

Archived from groups: comp.sys.laptops (More info?)

larwe@larwe.com wrote:
> My answer to the same problem on various laptops is to buy an as-is
> battery off eBay. You can leave it in there and not care about killing
> it, since it's probably already not too good. Plus if there is a power
> failure, you'll probably get a little time out of the "sacrificial"
> battery, which you won't out of a plastic plug.

> On occasion I've made my own weight-saver by pulling all the cells out
> of a battery and gluing the shell back together, too.

Ended up doing both, buying an aftermarket battery from someone
that regularly sells them and had a few returned as duds so he sold one
relatively cheap. It was a dud, probably the IC charging circuitry and
not the cells so if anyone wants those for cheap to refurbish a battery
let me know they are supposedly Japanse cells (but I see no markings).
It was quite a pain getting the thing apart while trying not to destroy
the case though, they're glued together, at least this after market one
was.

Now I have a weight saver plug, but a half dead battery would
have been nice too like you said for the quick outlet switch or
occasional power blip.