About this replacement
ECS G10L / i-Buddie G10IL1 — 11.1V Li-ion Replacement Battery (G10-3S3600-S1A1)
This 11.1V, 4400mAh Li-ion battery replaces the original cell in the ECS G10L and i-Buddie G10IL1 notebooks. It matches OEM part numbers G10-3S3600-S1A1 and 63GG10028-5A SHL. Capacity is 48.84Wh — identical to the factory specification.
- G10L and G10IL1 platform fit: Both models share the same 11.1V three-cell rail, connector pinout, and BMS handshake protocol. One cell covers both variants without modification.
- Bench tested on actual hardware: We cycled this cell through charge, full discharge to cutoff, and a second full charge. The BMS reported correct capacity and accepted charge without interruption across all three stages.
- Post-install discharge cycle: After fitting this cell, run it down fully until the laptop hibernates at low-battery 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.
BIOS reporting battery health as poor after fitting a new cell
The BIOS reads health data from EEPROM values written during the previous cell's life. When a new cell goes in, those stored values no longer match the fresh chemistry, so the BIOS flags the battery as degraded. This is not a fault with the replacement cell. Run one full discharge-to-hibernate cycle followed by an uninterrupted charge to 100%. After two to three cycles, the BIOS learn routine updates its baseline and the health warning clears.
Laptop shuts down at 20–30% charge shown on screen
The fuel gauge IC calibrates its percentage readout against discharge curves stored from the old cell. On a new cell, those curves are mismatched, so the gauge calls 20–30% when the actual cell voltage is already near cutoff under load. The laptop shuts down because the cell cannot sustain the voltage rail when the CPU and display draw peaks together — not because of remaining capacity. Complete two full discharge-to-cutoff and charge-to-100% cycles. After recalibration, the fuel gauge tracks the new cell's voltage curve and shutdown moves back to the correct low-battery point near 5%.