Get longer battery life and improved performance with a new Fujitsu LifeBook U939 Battery. This LifeBook U939 battery is compatible with the LifeBook U9311X and U9390, U9310, U937, and U939 models. Additional compatible models and battery part numbers are listed below.

This LifeBook U939 battery is rated 14.4 volts and 40 Whr and will normally last 5-7 hours on a full charge. This FPCBP536 battery features the highest quality lithium-ion cells and components that charge faster and last longer than cheaper, lower quality batteries.

This Fujitsu LifeBook U939 battery is 100% compatible with the original battery specifications and is individually tested and backed by a 1 year warranty.