The HP HSTNN-IB8B is a rechargeable laptop battery listed under HP part number 931719-850, for use as a replacement in compatible HP notebooks.
Its lithium-polymer design has three cells, with a rated capacity of 48 Wh (4212 mAh) and an output voltage of 11.4 V. These ratings help identify the battery’s electrical specifications when checking a replacement.
Listed compatible models include the HP ProBook 640 G4, HP ProBook 650 G4 and HP ProBook 645 G4. Check the notebook model against this list before choosing the battery.
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