Information update for Battery Charging Control
Fujitsu is continuously seeking ways to improve the efficiency and safety of our PC products for the benefit of our End Users, both on new models and on those previously manufactured and sold.
In furtherance of that effort, Fujitsu is now making available to End Users an installable Update for Battery Charging Control which can reduce the potential of a battery-related thermal incident. We have determined that, as the battery pack used in a PC ages, a slight reduction in the charging voltage has a positive impact on maintaining the safe operation of the battery pack. Our Update detects battery age and status, and regulates charging voltages accordingly. We encourage you to download and apply this Update to your Fujitsu PC.
Because the Update varies according to model, and may not be available for all models, please confirm first that your PC is on this list below and click here to download the update tool
Model Name | Software to be updated |
LIFEBOOK U727/U747/U757 | Already applied |
LIFEBOOKE547/E557 | Already applied |
LIFEBOOKT937 | Already applied |
LIFEBOOKU937 | Already applied |
LIFEBOOKP727 | Already applied |
CELSIUS H760 | Firmware |
LIFEBOOK AH556 | BIOS |
LIFEBOOK E556/E546 | Firmware |
LIFEBOOK E736/E746/E756 | Firmware |
LIFEBOOK S936 | Firmware |
LIFEBOOK U536 | BIOS |
LIFEBOOK T726 | Firmware |
LIFEBOOK T936 | Firmware |
LIFEBOOK AH555 | BIOS |
LIFEBOOK E554/E544 | Firmware |
LIFEBOOK S935 | Firmware |
LIFEBOOK T935 | Battery Utility |
LIFEBOOK T725 | Battery Utility |
LIFEBOOK U745 | Battery Utility |
LIFEBOOK AH564/AH544 | BIOS |
LIFEBOOK E734/E744/E754 | Firmware |
LIFEBOOK S904 | Firmware |
LIFEBOOK T734 | Battery Utility |
LIFEBOOK T904 | Battery Utility |
CELSIUS H730 | Battery Utility |
LIFEBOOK E733/E743/E753 | Battery Utility |
LIFEBOOK E752 | Battery Utility |
LIFEBOOK SH572/SH772 | Battery Utility |
LIFEBOOK SH782 | Battery Utility |
LIFEBOOK S762/SH762/S792/SH792 | Battery Utility |
LIFEBOOK CH702 | Battery Utility |
LIFEBOOK LH772 | Battery Utility |
LIFEBOOK P772 | Battery Utility |
LIFEBOOK P702/PH702 | Battery Utility |
LIFEBOOK U772 | Battery Utility |
LIFEBOOK S752 | Battery Utility |
LIFEBOOK T902 | Battery Utility |
LIFEBOOK T732 | Battery Utility |
LIFEBOOK T731/TH701 | Battery Utility |
LIFEBOOK SH771 | Battery Utility |
IMPORTANT NOTE: Depending on the battery pack age/condition, the battery pack run time on a charge will be reduced (in some instances) by as much as 35% after this update.
In addition, End Users should remember that all battery packs in PCs are consumable components that require periodic replacement. Even if the PC is used with power from the AC adapter, over time the battery pack will age, hold less charge, and ultimately must be replaced. Please consider the purchase of a new battery pack as appropriate to maximize the utility and safety of your PC.
Also, End Users should note that from time to time, there may be an abnormal issue with a battery pack brought to Fujitsu’s attention by the battery pack manufacturer which necessitates a recall. If the battery pack in your PC is recalled, you should follow the instructions that will be provided in each such instance to obtain a replacement. At present, there is only one active recall which impacted battery packs used in Fujitsu PCs; you can check to determine if your unit is impacted here:
Should you have any questions on this Information, please contact Fujitsu at fpca.helpdesk@hk.fujitsu.com.