About this replacement
Lenovo Yoga 710 15" — 7.64V Li-Polymer Replacement Battery (L15M4PC2)
This 7.64V, 5800mAh Li-Polymer battery is a direct cell replacement for the Lenovo Yoga 710 15-inch 2-in-1 convertible. It fits the Yoga 710-15ISK, 710-15ISK 80U0, and related 15-inch Yoga 710 variants. OEM part numbers L15M4PC2, L15L4PC2, 5B10K90778, and 5B10K90802 all cross to this cell.
- Yoga 710 15" platform fit: The 710-15ISK and 80U0 variants share the same voltage rail and connector pinout. The BMS handshake is identical across this generation, so the same cell authenticates correctly in all covered models without firmware conflict.
- Bench tested on actual hardware: We ran this cell through charge, discharge, and BMS communication checks on a Yoga 710 15" unit. The BMS accepted the cell, reported capacity correctly after calibration, and the protection circuit tripped cleanly at the low-voltage cutoff threshold.
- BIOS learn cycle after installation: After fitting this cell, run one full discharge to hibernate cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap on Yoga 710 hardware.
Why the Yoga 710 BIOS flags a new battery as poor health
The Yoga 710 stores battery health data in EEPROM on the original cell. When you swap cells, that EEPROM data is gone and the BIOS reads the blank state as degraded. This is not a fault with the replacement cell — it is a calibration gap. Running one complete discharge-to-hibernate then a full uninterrupted charge gives the fuel gauge IC enough data to rewrite accurate health figures. After two to three cycles the BIOS health indicator will update to reflect the actual cell condition.
Laptop shuts down at 20–30% shown after battery swap
This happens because the fuel gauge IC is still mapping the old cell's voltage curve to the new cell's chemistry. When the CPU and display draw full load simultaneously, the cell hits a voltage cliff the gauge did not anticipate, and the system cuts out before the displayed percentage reaches zero. The fix is the same calibration cycle — discharge fully to hibernate cutoff, then charge to 100% without interruption. After two full cycles the gauge recalibrates to the new cell and the early shutdown stops. Target a resting voltage of 8.60V at full charge to confirm the cell is holding correctly.