Which power adapter fits the HP EliteBook 820 G2? OEM part numbers

7 power adapters are documented for the HP EliteBook 820 G2: 414135-001, 693710-001, 721092-001, 734734-001, 742437-001 and 2 more. 7 of 7 come from OEM documentation (h10032.www1.hp.com, partsurfer.hp.com); last checked 2026-11-04. Not bench-tested: match the number on your old power adapter and any constraint before ordering.

Part number	Part	Constraints	Confidence	Last checked
414135-001	HP 65-W 3-pin to standard power connector adapter 414135-001	HP description: "65-W 3-pin to standard connector power adapter". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
693710-001	HP AC adapter 693710-001	Adapter option; match wattage, connector and your original adapter. HP guide description: "65-W HP Smart adapter (EM, RC/V, 3-wire, 4.5-mm)". OEM documentation only; not bench-tested.	OEM documented	2026-10-27
721092-001	HP AC adapter 721092-001	Adapter option; match wattage, connector and your original adapter. HP guide description: "45-W HP Smart adapter (non-PFC, RC, 3-wire, 4.5-mm)". OEM documentation only; not bench-tested.	OEM documented	2026-10-27
734734-001	HP Smart 7.4 mm AC adapter 734734-001	HP lists this spare part number for the HP EliteBook 820 G2 in its Maintenance and Service Guide (printed p.29).	OEM documented	2026-11-01
742437-001	HP AC adapter 742437-001	Adapter option; match wattage, connector and your original adapter. HP guide description: "45-W HP Smart adapter (non-PFC, RC, 2-wire, 4.5-mm)". OEM documentation only; not bench-tested.	OEM documented	2026-10-27
744893-001	HP AC adapter 744893-001	Adapter option; match wattage, connector and your original adapter. HP guide description: "45-W HP Smart adapter (non-PFC, RC, 7.4-mm)". OEM documentation only; not bench-tested.	OEM documented	2026-10-27
L40094-001	HP AC adapter L40094-001	Adapter option; match wattage, connector and your original adapter. HP guide description: "65-W HP Smart adapter (non-PFC, 3-wire, 4.5-mm)". OEM documentation only; not bench-tested. HP lists L40094-001 as the replacement for 693711-001.	OEM documented	2026-10-30

Where do these HP EliteBook 820 G2 power adapter part numbers come from?

7 of 7 fits are from OEM documentation (h10032.www1.hp.com, partsurfer.hp.com); each row links its source. Last checked 2026-11-04.

Are these power adapters tested in the HP EliteBook 820 G2?

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 EliteBook 820 G2.

Other parts for the HP EliteBook 820 G2

Heat Sink (1) · Fan (1) · Bottom Cover (4) · Battery (2) · Screen (4) · Keyboard (66) · Microphone (1) · Power Cord (35) · RTC Battery (1) · Display Bezel (5) · Palmrest (1) · Motherboard (3) · Service Part (10) · Card Reader (1) · Fingerprint Reader (1) · Speakers (1) · Touchpad (2) · Hard Drive (7) · Memory (2) · SSD (12) · Wireless Card (5) · Camera (1) · Hinge (2) · Display Cable (2) · Antenna (4) · Display Back Cover (2) · Cable (2) · Screw Kit (1) · Feet (1)

For AI agents: the same list as JSON from the free MCP server at /mcp (tool get_model_parts, model hp-elitebook-820-g2) or the keyless JSON API.