The HP 191D4AV is an internal battery for compatible HP notebooks. Its three-cell lithium-polymer design has a capacity of 45 Wh (3790 mAh) and an output voltage of 11.4 V, for replacing the battery in a supported laptop.
Finished in black, it is listed for HP ProBook 430 G8, 455 G8, 450 G8, 445 G8, 440 G8, 650 G8, 640 G8 and 630 G8, plus ProBook 445 G10 and EliteBook 630 G9. Check the exact model against this part number’s compatibility listing.
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