Question about IBM ThinkPad R40 2681
I'm having similar problems on my R40 and I've seen a lot of references to similar problems when I had time to search. I have no idea what is causing the problem, but it's apparently quite common. I replaced my battery in January thinking it must be dying (had gradually crept down below 40% over a period of weeks, even while connected to power). The new battery quickly charged up to 100% and stayed there until I used it standalone last weekend. It got down to 40% and would not go up. I've removed it, cleaned contacts, etc, but no change. It will go down, of course, if I disconnect the plug, but it won't charge. Either ALL the batteries out there are bad, or many R40's have a defective charging system.
Posted on Mar 13, 2008
Until you test the actual power pin you have no way of knowing that it (the pin) or the connection to the mother board isn't bad.
Posted on Mar 09, 2008
Sounds like it could be the power pin/socket. Poorly designed at best. The day in and day out pulling and tugging takes it's toll on the poor little connector. I use a cable retention device liek the one in this video to keep my plug intact.
Posted on Mar 04, 2008
Sounds like the power cable and/or it's connection is going bad. If it's the cable you can certainly replace it, though it may be costly. But if it's the connection on the machine, I've never seen a cost effective long term solution to the problem beyond buying a new laptop.
Posted on Jan 28, 2008
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Posted on Jan 02, 2017
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