Get longer battery life and improved laptop performance with a new HP ProBook 6440b battery. This ProBook 6440b battery is also compatible with the HP EliteBook 6530B 6535B 6550B 6730B 6735B 6930P laptop models.

This ProBook 6440b battery is rated at 5200 mAh and will normally last 3 hours on a single charge. To experience even longer run times click here to see the higher capacity battery. The higher capacity battery cells inside this cartridge have an energy capacity of 5200 mAh.

This battery will be compatible with batteries rated at 4400 & 4800 mAh capacities while providing up to 20% more run time.