The laptop will not turn on when you try to start it from the Toshiba PA2522U battery. When the laptop is turned off and plugged into the AC outlet the laptop battery charge LED doesn’t light up. You know that the Toshiba PA2522U battery is not charged and the LED should light up when you plug the laptop into the AC outlet. The laptop starts fine when it is plugged. When you move the mouse over the Toshiba Power Icon in the lower right corner, the balloon will pop up and there is a line in there: Toshiba laptop Battery Remaining: N/A.
You can easily fix the problem just by updating the BIOS. Toshiba says that the BIOS version should be at least v1.30. So, go to Toshiba PA2522U battery website and click on Downloads. Select your laptop model and find any downloads for the BIOS. In the BIOS change history you will see the description of Toshiba PA2522U battery changes.
Toshiba PA2522U battery (http://www.papatek.com/
Dimension :
Net Weight : 640g
Brand :Replacement
Toshiba PA2522U battery Description:
Voltage: 10.8V
Capacity: 8400mAh
Type: Li-ion
Number of cells: 12
UL certificated cells inside!
100%OEM compatible, guaranteed to meet or exceed OEM specifications!
Toshiba PA2522U battery Warranty
6 months warranty
For return of non-defective product within the first 10 days from date of purchase, full refund.
Within the whole Toshiba PA2522U battery warranty days, unartificial defective product returns are accepted for replacement, and we will afford all shipping fee.
You can find more information at: http://www.papatek.com

