Gionee GN100 Replacement Battery BL-G011 3.7V 1280mAh

GIONEE GN100 — 3.7V Li-ion Replacement Battery (BL-G011)

This is a 3.7V, 1280mAh Li-ion replacement battery for the GIONEE GN100 smartphone. It carries OEM part number BL-G011 and matches the original cell's physical dimensions at 64.40 × 43.40 × 4.60mm. Swap it in when the original cell no longer holds a full charge or the phone shuts down unexpectedly.

• GN100 fitment: The BL-G011 cell uses a connector and contact layout specific to the GN100 chassis. The BMS on this platform communicates charge state directly to the fuel gauge IC, so physical and electrical compatibility must match — a generic 3.7V cell without the correct BMS profile will cause erratic percentage readings or charge refusal.
• Bench tested on actual hardware: We cycled this cell through full discharge and charge on the GN100 platform. The BMS accepted the cell without fault flags, charge termination triggered correctly at 4.2V, and the fuel gauge IC tracked state-of-charge without dropout across the full curve.
• First-cycle fuel gauge recalibration: After fitting this cell, disable fast charging and run one complete discharge-to-charge cycle before resuming normal use. This gives the fuel gauge IC a clean reference curve against the new cell — skipping it causes the coulomb counter to inherit the old cell's degraded profile, producing inaccurate percentage readings from day one.

Sudden shutdown at 20–30% on the GN100 after a cell swap

This happens when the fuel gauge IC is still calibrated to the old cell's discharge curve. The new cell has a steeper voltage drop near the low end, so the phone hits the hardware undervoltage cutoff before the OS percentage reaches zero. The modem and display together can pull enough current to cause a rapid voltage sag below the cutoff threshold — even when the gauge still shows charge remaining. Run one full discharge cycle without fast charging to let the coulomb counter reset against the new cell's actual voltage curve.

Phone feels warm near the battery during the first few charges

A new cell has higher internal impedance than a well-cycled one. The charge IC on the GN100 pushes current at the same rate it used with the broken-in original, which generates more heat across the higher resistance of the fresh cell. This is a temporary condition — impedance drops after two or three full cycles as the cell's electrolyte and electrode interfaces settle. If warmth continues beyond the third charge cycle or the phone becomes hot to the touch, check that the battery connector is fully seated and not arcing at the contact points.