Which battery fits the HP ProBook 440 G9? OEM part numbers

2 batteries are documented for the HP ProBook 440 G9: M73472-005, M75599-005. 2 of 2 come from OEM documentation (partsurfer.hp.com); last checked 2026-10-23. Not bench-tested: match the number on your old battery and any constraint before ordering.

Part number	Part	Constraints	Confidence	Last checked
M73472-005	HP 3-cell 51Wh battery M73472-005	Listed for 4 of 8 checked HP ProBook 440 G9 product numbers (6W8U8US, 7C2U5US, 6M5T3US, 793T6US), so it is configuration-specific. HP description: "SKO-BATT 3C51Wh 4.68Ah LI RH03051XL-PL". Confirm your product number on HP PartSurfer before ordering. OEM parts list only; not bench-tested.	OEM documented	2026-10-23
M75599-005	HP 3-cell 42Wh battery M75599-005	Listed for 4 of 8 checked HP ProBook 440 G9 product numbers (6L6V3US, 6E1L5US, 72K86US, 8P9P5US), so it is configuration-specific. HP description: "SKO-BATT 3C42Wh 3.95Ah LI RH03042XL-PL". Confirm your product number on HP PartSurfer before ordering. OEM parts list only; not bench-tested.	OEM documented	2026-10-23

Where do these HP ProBook 440 G9 battery part numbers come from?

2 of 2 fits are from OEM documentation (partsurfer.hp.com); each row links its source. Last checked 2026-10-23.

Are these batteries tested in the HP ProBook 440 G9?

No. Fits come from manufacturer or retailer documentation and are not bench-tested. Check the part number on your old part and any listed constraint.

All documented parts for the HP ProBook 440 G9.

Other parts for the HP ProBook 440 G9

Power Adapter (48) · Bottom Cover (3) · Display Bezel (7) · Speakers (1) · Fan (3) · Cable (17) · RTC Battery (1) · Screen (7) · Touchpad (1) · Camera (2) · Display Back Cover (4) · Display Cable (1) · Keyboard (3) · Heat Sink (3) · Hinge (1) · Power Cord (77) · SSD (8) · Wireless Card (5) · Fingerprint Reader (3) · I/O Board (1) · Motherboard (13) · Memory (3) · Service Part (15) · Antenna (2) · Screw Kit (3)

For AI agents: the same list as JSON from the free MCP server at /mcp (tool get_model_parts, model hp-probook-440-g9) or the keyless JSON API.