Maybe my problem is so many known and I can 'give nen tip. After I turned on my Inspiron 1501 (whether battery or AC power), comes most recently as the first message: "Warning: The battery cannot be identified. This system will be unable to charge this battery." About "any key" but I can easily continue the boot of the computer (XP). I still have the original battery in it, nothing has changed in the hardware. The message came from a sudden. However, since then I had a battery life of 4 hours, now it still holds up. 2 h. The battery is also charged, but unfortunately only at 2 h. The icon also shows 100% loaded then on, he achieved 4 hours but no more. Would be very grateful for a tip.
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