BTI notebook battery, compatible with HP EliteBook 840 G1, 850 G1, ProBook 440 G1/G2, 450 G1/G2, 455 G1 and many more OEM P/N: 391172-001, 693710-001, 751889-001, ED494UT#ABA, 463958-001, 693711-001, 835498-001, LA65NS2-01, 609939-001, 744481-002, ED494AA, PPP009H, L2X04AA We recommend: Advance exchange for this product is available directly through Origin Storage throughout the 18-month warranty period. Please note: Incl. EU power cable