About this replacement
ECS G730 / Green 732 — 14.8V Li-ion Replacement Battery (LIP-X036)
This is a 14.8V, 4400mAh (65.12Wh) Li-ion replacement battery for the ECS G730 and Green 732 notebooks. It slots into the same battery bay as the original LIP-X036 cell and restores mobile operation when the factory pack has degraded or failed entirely. Voltage and connector match the OEM specification exactly.
- G730 and Green 732 shared platform: Both models run the same 14.8V four-cell Li-ion bus, share the LIP-X036 connector pinout, and use the same BMS handshake protocol — which is why one replacement battery covers both. Swapping between these models requires no adapter or firmware change.
- Bench tested on actual hardware: We cycled this cell through charge, idle draw, and load discharge on the G730 platform. The BMS completed its initialisation handshake without error, and charge termination triggered correctly at full capacity with no trickle-loop fault.
- First-cycle calibration on the G730: After fitting this cell, let the laptop discharge fully until it hibernates, then charge uninterrupted to 100% without interruption. This single full discharge-to-hibernate cycle resets the BIOS battery learn sequence and clears the inaccurate health warning that appears on the first boot after any cell swap.
Why the G730 BIOS flags a new battery as poor health or unknown
The G730 BIOS reads battery health from EEPROM data written to the original cell at the factory. When a new cell is installed, that EEPROM data is either blank or mismatched, so the BIOS reports the pack as unknown, 0%, or degraded — even though the cell is new. This is not a fault with the replacement battery. Running one full discharge-to-hibernate cycle followed by an uninterrupted full charge gives the fuel gauge IC enough data to overwrite the stale EEPROM values and report correctly.
Laptop shuts down at 20–30% shown on the fuel gauge
This happens when the fuel gauge IC is still calibrated to the old cell's discharge curve. The displayed percentage and the actual cell voltage fall out of sync, and the BIOS triggers a protective shutdown before the gauge reaches zero. The fix is the same calibration cycle — discharge to hibernate-cutoff, then charge fully without interruption. After two to three full cycles, the fuel gauge IC re-maps its curve against the new cell and the early shutdowns stop. Check the battery percentage during a CPU-plus-display load cycle; if it stabilises after the second full cycle, calibration is complete.