bill bolton wrote:
There have been many different battery
technologies around for far longer
than the 1970s, and they all behave differently.
Yes but only these lithium-ion just simply FAIL all at once for no apparent reason. I am not convinced the cells are bad either. If one of the cells suddenly failed, fine, expect it, and make them replaceable. The stupid thing is I only need about an hour of solid run-time so if the battery had just gradually decreased capacity it could have lasted 5 years or more. It never lasted the 8 hours it was advertised to, but the 3 hours it was running when it failed was plenty.
I am waiting to see if lenovo will do the right thing, but eventually I will open it up and test the cells. If I find a bad cell and manage to do this without gak-ing up the case, I may just replace the cells so I have a second battery. I must state if you intend to replace your own cells, you must use all new matched cells or you WILL have a bad day. If I don't find a bad cell, I will consider this a failure on Lenovo's part and I may not ever buy another machine from them. If I could have confirmed for a fact this was their fault, I would have canceled my W700 order and waited for the i7 multi touch mac to be released. I am a huge thinkpad fan, but I'm not going to put up with being screwed over. The fact is as far as I can tell there is nothing else out there in the PC world that competes with the quality except the Macbook Pro, which has a one piece aluminum case, how cool is that? If they had a decent Keyboard, and a trackpoint instead of that stupid touchpad, I would have jumped ship when I saw how bad the T61 was. I figured that was the end of the Thinkpad brand. Fact is I got the W700 because of the trackpad, and the positive reviews of the screen HERE. I figured the wacom tablet would come in handy, and it already has changed my computing life. The trackpad is turned off. I've also started getting used to having a number pad again. BUT.....THIS THING IS HUGE AND HEAVY!!! I don't plan to EVER use it on battery except as a UPS. The battery currently shows 3 cycles and they were there when I got it. I've had it since November. Unfortunately the design capacity is 84WH and the full charge capacity is 80.5WH The battery is over a year old. Not impressed! But like I said I'll never use the battery. If it will last 10 minutes in 4-5 years from now, I'll feel like I have had a good run even though it will have had very few cycles by then.