GIONEE S5.5 Compatible Battery BL-N2300 3.8V 2300mAh

GIONEE S5.5 / GN9000 — 3.8V Li-Polymer Replacement Battery (BL-N2300)

This is a 3.8V, 2300mAh Li-Polymer replacement battery for the GIONEE S5.5 and GN9000 smartphones. It replaces OEM part number BL-N2300 directly. Capacity matches the original cell at 8.74Wh.

• S5.5 and GN9000 compatibility: Both models share the same battery bay dimensions and run the same 3.8V power rail. The BL-N2300 connector pinout and BMS communication protocol are identical across this pair, so one cell fits both without modification.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the S5.5 platform. The BMS handshake completed correctly, charge termination triggered at the expected cutoff voltage, and the fuel gauge IC tracked state of charge without tripping fault flags.
• Fuel gauge recalibration on first use: After fitting this cell, disable any fast-charge mode and run one full discharge-charge cycle before normal use. This lets the fuel gauge IC build an accurate discharge curve against the new cell before high-current charging pushes current into an uncalibrated state.

Sudden shutdown at 20–30% on the GIONEE S5.5

This is a voltage cliff issue, not a capacity problem. When the modem, display, and processor draw peak current simultaneously, a weakened or freshly fitted cell can't sustain the voltage under that combined load. The phone's protection circuit reads voltage dropping below the shutdown threshold and cuts power instantly — even when the fuel gauge still shows charge remaining. A replacement cell with a healthy internal resistance profile removes the sag that triggers the cutoff.

Phone not powering on after the replacement battery sat in storage

Li-Polymer cells self-discharge during storage. If the BL-N2300 cell drops below approximately 2.5V per cell, the BMS enters a lockout state to prevent damage and the phone will not respond to a normal boot attempt. Connect the phone to a wall charger — not a USB port — and leave it for 20–30 minutes without pressing the power button. The charge IC needs to trickle current into the cell until it clears the BMS re-enable threshold, typically around 2.8V, before a normal charge cycle can begin.