Colorful P16 23 Laptop Replacement Battery 15.4V 3400mAh

Colorful P16 23 — 15.4V Li-Polymer Replacement Battery

This is a 15.4V, 3400mAh (52.36Wh) lithium-polymer replacement battery for the Colorful P16 23 laptop. It slots into the P16 23 chassis and restores portable operation when the original cell has degraded or failed to hold charge. Voltage, connector type, and physical dimensions match the factory specification.

• P16 23 platform fit: The P16 23 runs a 15.4V battery rail with a multi-cell Li-Polymer pack measuring 138.50 × 113.00 × 11.20mm. This cell matches that voltage requirement and physical envelope, including the BMS connector pinout the board expects for charge communication.
• Bench tested on actual hardware: We cycled this cell through charge, full-load discharge, and re-charge on bench. The BMS reported charge states correctly at each stage and did not trigger an early cutoff under combined CPU and display load.
• First-cycle calibration on the P16 23: After installing, run one full discharge until the laptop hibernates on its own, then charge uninterrupted to 100%. This forces the fuel gauge IC to map against the new cell's actual capacity and clears the inaccurate health warning the BIOS throws after every cell swap.

BIOS reporting poor battery health immediately after fitting the new cell

The BIOS on the P16 23 reads health data from EEPROM registers written by the original factory cell. A new cell arrives with its own EEPROM baseline, which the BIOS treats as mismatched or degraded until a learn cycle resets the reference. This is a firmware-data issue, not a fault with the replacement cell. Run one full discharge-to-hibernate followed by a full uninterrupted charge — the BIOS recalibrates against the new EEPROM data and the health warning clears.

Laptop shuts down suddenly while the OS still shows 20–30% charge remaining

This happens when the fuel gauge IC has not yet calibrated against the new cell's actual voltage curve. The gauge under-reports remaining capacity, so the displayed percentage and the real cell voltage diverge — the cell hits its low-voltage cutoff before the OS registers a low-battery warning. It is most visible under peak load when the CPU and display pull simultaneously. Complete two to three full discharge-and-charge cycles and the fuel gauge IC re-anchors its curve; the cutoff should align with the OS reading by cycle three.