Acer, eMachines, and Gateway are all part of the same manufacturer.

Example Part Numbers: AS10D71, ASO9A61, 916C4820F, AK.006BT.021, BT.00403.001

Example Part Numbers: A1331, A1396, 020-6380-A, M9325G/A, MB471LL/A, 661-4833

Example Part Numbers: A41-X550A, A32-F3, AL23-901, 90-NE51B2000, 0B110-00240100E

Example Part Numbers: T54FJ, M5Y0X, KM978, M5Y1K, JWPHF, R795X

Example Part Numbers: FPCBP374, FMVNBP198, BTP-B4K8, 21-92441-03

HP and Compaq share the same battery standards. Look for a white sticker with a barcode labeled "Replace with HP Spare" followed by 6 digits, a dash, and 3 digits (e.g. 593553-001). Alternative codes start with HSTNN-.

Example Part Numbers: MU06, KI04, 593553-001, HSTNN-104C

Example Lenovo Part Numbers: L08S6D13, 45N1001, OA36302

Example IBM Part Numbers: FRU 02K6928, ASM 92P1138, 02K6824

Example Part Numbers: BTY-S14, A32-A24

Example Part Numbers: CF-VZSU30B, CF-VZSU72U

Example Part Numbers: AA-PBVN3AB, AA-PB9NC6B

Example Part Numbers: VGP-BPS20, VGP-BPS13A/S, VGP-BPL14, VGP-BPL15/B

Example Part Numbers: PA5208U, PA5208U-1BRS