About this replacement
Lenovo IdeaPad 110-15ACL — 10.8V Li-ion Replacement Battery (L15C3A03)
This is a 10.8V, 2200mAh (23.76Wh) Li-ion replacement battery for the Lenovo IdeaPad 110-15ACL 15.6-inch notebook. It fits the full IdeaPad 110-15ACL range, including 80TJ, 80V7, and related submodels. OEM part numbers L15C3A03, L15L3A03, L15S3A02, 5B10L04166, 5B10L04167, 5B10L04215, and 5B10L79278 all cross-reference to this cell.
- IdeaPad 110-15ACL compatibility: All 110-15ACL submodels share the same 10.8V three-cell architecture, connector pinout, and BMS handshake protocol. That's why one battery covers the 80TJ, 80V7, and extended variants without modification.
- Bench tested on actual hardware: We ran this cell on an IdeaPad 110-15ACL under combined CPU and display load. The BMS held stable communication with the BIOS, charge acceptance started immediately from a depleted state, and no protection-circuit trips occurred across the full charge cycle.
- Post-install calibration on the IdeaPad 110-15ACL: After fitting this battery, run one full discharge until the laptop hibernates at cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that typically appears after any cell swap on this platform.
BIOS reporting poor battery health immediately after replacement
The IdeaPad 110-15ACL BIOS reads health data stored in the old cell's EEPROM. When a new cell goes in, that data is gone, so the BIOS flags the battery as degraded before it has gathered any real charge history. This is a firmware state, not a cell fault. Running a full discharge-to-hibernate followed by an uninterrupted charge to 100% gives the BIOS enough data to re-evaluate. After one or two complete cycles, the health status clears.
Laptop shuts down abruptly at 20–30% charge shown
This happens when the cell can no longer sustain voltage under the combined load of the CPU and display — voltage drops sharply before the fuel gauge reaches zero, and the system cuts power to protect itself. The fuel gauge IC calibrates against the new cell over several cycles, so early shutdowns are common until the IC learns the actual discharge curve of the replacement cell. If shutdowns persist past three full cycles, check that AC adapter output is steady at 20V — an underpowered adapter accelerates voltage sag under load. Run a full discharge cycle once more and let the laptop charge to exactly 100% before next use.