I got jabra jx10 wireless headset as a gift

And it has dead battery, as it hasn't been used at all after its purchace in 2005

Now do you guys know a way to "revieve" the battery, or am i just wasting my and your time?

If you find a replacent that i can use (and doesn't cost more than new headset) the battery is "atl 501230 90mAh", and its 20mm long, 12mm wide and about 5mm thick.

(yes i used google and got into the manufacteurs site, and their batt is too big )