A32-V2 Asus V2 Replacement Battery 11.1V 4400mAh

Asus V2 / V2S / V2Je Series — 11.1V Li-ion Replacement Battery (A32-V2)

This is an 11.1V 4400mAh (48.84Wh) Li-ion replacement battery for the Asus V2, V2S, V2Je, and V2J notebooks. It replaces OEM part numbers A32-V2, 90-NL51B1000, and 70-NL51B1000M. Fits the original battery bay with no modification to the chassis or connector.

• V2 series compatibility: The V2, V2S, V2Je, and V2J share the same battery bay dimensions, three-cell connector pinout, and BMS handshake protocol — all four models draw from the same 11.1V rail and accept this cell without adapter or firmware patch.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on a V2J unit and monitored the BMS communication. The protection circuit engaged correctly at low-voltage cutoff, and the charge controller accepted a full charge without flagging an error state.
• First-install discharge cycle: After fitting this cell, run the laptop on battery until it hibernates at low-charge cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after swapping cells.

BIOS reporting poor battery health immediately after fitting a new cell

The Asus V2 BIOS stores battery health data in EEPROM tied to the original cell's charge history. When a new cell is installed, that stored data does not match the fresh cell's state, so the BIOS flags health as poor or unknown straight away. This is not a fault with the replacement cell. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% triggers the BIOS battery learn cycle and overwrites the stale EEPROM data. After two to three complete cycles the reported health percentage normalises.

Laptop shuts down abruptly while the charge indicator still shows 20–30%

This happens when the fuel gauge IC has not yet calibrated against the new cell's actual voltage curve. The gauge is still reading from the old cell's profile, so it misreports remaining capacity by a wide margin. Under combined CPU and display load, voltage drops faster than the gauge anticipates and the battery hits its hardware cutoff before the OS can warn you. Run two full discharge-to-hibernate and recharge cycles without interruption — by the third cycle the fuel gauge IC recalibrates and the reported percentage aligns with actual cell voltage.