BL-N2450 GIONEE ELIFE S5.5L Compatible Battery 3.8V 2450mAh

GIONEE Elife S5.5L / GN9000L — 3.8V Li-Polymer Replacement Battery (BL-N2450)

This is a 3.8V, 2450mAh (9.31Wh) Li-Polymer cell that replaces the original BL-N2450 in the GIONEE Elife S5.5L and GN9000L smartphones. It fits the same physical footprint at 89.73 × 60.50 × 3.15mm and connects to the same charge IC on the motherboard. Swap it in when the original cell no longer holds a usable charge between top-ups.

• Elife S5.5L and GN9000L fit: Both models run the same 3.8V battery bay, BL-N2450 part number, and connector pinout. The BMS handshake is identical across both, so one cell covers either phone without modification.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on a controlled rig, confirmed BMS communication with the charge IC, and verified cutoff thresholds at both the low-voltage floor and full-charge ceiling before shipping.
• Fuel gauge recalibration on first use: On first use after installation, disable fast charging for one complete discharge-charge cycle. This lets the fuel gauge IC map its coulomb counter against the new cell's actual discharge curve before any high-current charging pushes current into an uncalibrated cell.

Sudden shutdown at 20–30% on the Elife S5.5L after a cell swap

The Elife S5.5L uses a coulomb-counting fuel gauge IC that was calibrated to the discharge curve of the original aged cell. A new cell has a steeper voltage cliff at the lower end of its curve, so the IC underestimates remaining capacity. When the modem or display pulls a high-current burst, cell voltage dips below the BMS cutoff before the OS has time to shut down gracefully. One full discharge-to-shutdown cycle followed by an uninterrupted charge to 100% forces the IC to re-anchor its zero point, and the shutdowns stop.

Phone reports wrong battery percentage after replacing the BL-N2450

The fuel gauge IC on the GN9000L stores a learned capacity model tied to the old cell's internal resistance and voltage curve. Drop in a fresh cell and the stored model no longer matches what the hardware is actually measuring, so percentage readings jump or stall. The fix is a hard recalibration: drain the phone until it powers off on its own, then charge uninterrupted to 100% with fast charging disabled. After that first full cycle, the coulomb counter resets its baseline and percentage readings stabilise.