About this replacement
Getaway EC39C01c / EC39C02c Series — 11.1V Li-ion Replacement Battery (AS10H31)
This is an 11.1V, 4400mAh (48.84Wh) Li-ion battery that replaces the original cell in Getaway EC39C01c, EC39C02c, EC39C03c, D43A, and related notebook models. It uses OEM part numbers AS10H31, AS10H3E, AS10H51, AS10H7E, AL10E31, and AL10F31. Confirm your part number against the label on the underside of the original battery before ordering.
- EC39C / D43A platform fit: These Getaway notebook lines share the same 11.1V three-cell battery bay, connector pinout, and BMS handshake protocol — which is why a single SKU covers the full range. The BMS reads cell chemistry and voltage to confirm compatibility on first boot.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on the EC39C platform. The BMS handshake completed without error, charge terminated correctly at full voltage, and the fuel gauge IC registered the cell within expected range.
- First-cycle reset for EC39C notebooks: After installation, run the laptop on battery until it hibernates at low charge, then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to reset against the new cell and clears the inaccurate health warning that appears after every cell swap on this platform.
BIOS reporting battery health as poor immediately after replacement
The Getaway EC39C BIOS stores battery health data in EEPROM tied to the original cell's charge history. When a new cell is installed, that stored data no longer matches the actual cell state, so the BIOS flags health as poor or unknown — this is not a fault with the replacement battery. The fix is a full discharge-to-hibernate followed by an uninterrupted charge to 100%. After one or two full cycles, the BIOS recalibrates and the health warning clears.
Laptop shutting down at 20–30% charge shown on screen
This happens when the fuel gauge IC has not yet calibrated against the new cell's actual voltage curve. The gauge predicts 20–30% remaining, but the cell voltage drops sharply under combined CPU and display load — hitting the BMS low-voltage cutoff before the gauge catches up. It is not a capacity defect. Run two full discharge-to-hibernate cycles, charging fully between each, and the fuel gauge IC will map the new cell accurately. After calibration, shutdown should not occur above 5–7% displayed charge.