About this replacement
Samsung NP470 Series — 10.8V Li-ion Replacement Battery (AA-PBVN3AB)
This is a 10.8V Li-ion cell rated at 3950mAh (42.66Wh), direct replacement for the AA-PBVN3AB / BA43-00358A OEM battery. It fits the NP470, NP470R5E, NP500R5H-Y09, NP510RSE, and over 120 additional Samsung notebook variants that share this battery form factor. Same voltage rail, same connector, same BMS handshake as the original cell.
- NP470 series compatibility: These models share the AA-PBVN3AB platform because Samsung used the same 10.8V three-cell Li-ion pack and SMBus-compatible BMS across the NP470 and NP500 lines. The connector pinout and charge controller handshake are identical across the full range, so one cell fits all listed variants without modification.
- Bench tested on actual hardware: We ran this cell on an NP470R5E under combined CPU and display load. The BMS held the charge curve cleanly through multiple cycles, with no false cutoffs and stable voltage delivery across the full discharge range.
- First-cycle calibration on the NP470: After installing, run one full discharge down to hibernate-cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears in Samsung's power manager after a cell swap.
BIOS reporting battery health as poor immediately after replacement
Samsung notebooks store battery health data in EEPROM on the original pack. When a new cell is installed, the BIOS reads residual data from the old pack's last state and flags it as degraded — even though the cell is fresh. This is not a fault with the replacement battery. Running a complete discharge-to-hibernate followed by an uninterrupted full charge forces the BIOS to rewrite the learn-cycle data against the new cell's actual characteristics. After one or two full cycles, the health indicator returns to normal.
Laptop shuts down at 20–30% charge shown on screen
This happens when the fuel gauge IC has not yet calibrated against the new cell's chemistry. The IC is still using discharge curves mapped to the old, worn cell, so it misreads remaining capacity and triggers shutdown before the battery is actually depleted. The fix is calibration: discharge fully to automatic hibernate, then charge to 100% without interruption — repeat this two or three times. After calibration, the gauge tracks accurately and the early shutdown stops.