Gigaset GS110 V30145-K1310-X471 Replacement Battery 3.8V 2800mAh

Gigaset GS110 — 3.8V Li-ion Replacement Battery (V30145-K1310-X471)

This is a 3.8V, 2800mAh Li-ion battery for the Gigaset GS110 smartphone. It replaces the original cell when the phone no longer holds charge between uses. Dimensions are 83.80 × 59.80 × 4.80mm — verify your original before fitting.

• GS110 platform fit: The GS110 uses a removable flat-cell format with a three-contact connector carrying voltage, ground, and a NTC thermistor line. The charge IC reads that thermistor to gate current. Any mismatch in connector pinout or cell dimensions stops charging before the battery registers at all.
• Bench tested on actual hardware: We cycled this cell on a GS110 board and confirmed the charge IC accepted handshake on first insertion, BMS held cutoff correctly at low-voltage threshold, and the fuel gauge reported state-of-charge without error flags across a full discharge-charge cycle.
• Fuel gauge recalibration after install: On first use after fitting, disable fast charging and run one complete discharge-charge cycle at standard current. The GS110's fuel gauge IC maps its coulomb counter to the new cell's discharge curve during that first pass — skipping it lets the IC carry over the old cell's calibration and causes inaccurate percentage readings from day one.

Sudden shutdown at 20–30% on the replacement cell

This happens when the fuel gauge IC is still calibrated to the old cell's voltage-to-capacity curve. The new cell hits a voltage cliff under modem or display load at a point the IC still reads as 20–30% remaining. The phone cuts power to protect the SoC before the gauge catches up. One full slow-charge cycle forces the coulomb counter to re-anchor to the new cell's actual discharge slope. After that cycle, the shutdowns stop.

Phone not powering on after the battery sat in storage

Li-ion cells self-discharge in storage. If this battery sat discharged for an extended period, cell voltage may have dropped below 2.5V — the point where the BMS latches into protection mode and blocks all output. The GS110 will show nothing when you press power. Connect to a wall charger rated at least 5V 1A and leave it for 20–30 minutes without pressing any button. Once the charge IC trickle-charges the cell back above the BMS recovery threshold, the phone will boot normally.