ZTE Blade L110 Replacement Battery Li3814T43P3h634445 3.8V

ZTE Blade L110 — 3.8V Li-ion Replacement Battery (Li3814T43P3h634445)

This is a 3.8V, 1400mAh Li-ion cell that replaces the original battery in the ZTE Blade L110 and Blade L110 Dual SIM smartphones. It matches the OEM part number Li3814T43P3h634445 and fits both single and dual SIM variants of the L110. Capacity is 1400mAh (5.32Wh), identical to the factory specification.

• Blade L110 and Dual SIM fit: Both L110 variants share the same battery bay, connector pinout, and BMS handshake protocol. One cell covers both boards — no adapter or modification required.
• Bench tested on actual hardware: We cycled this cell on an L110 mainboard and confirmed the BMS accepted the new cell without fault flags. Charge termination triggered correctly at 4.35V and the protection circuit tripped as expected on a short-circuit test.
• Fuel gauge recalibration on first cycle: After fitting this cell, disable fast charging and run one full discharge down to auto-shutdown, then charge to 100% uninterrupted. The L110's fuel gauge IC maps its coulomb counter against the new cell's discharge curve during this cycle — skipping it leaves the percentage readout miscalibrated against an old curve.

Sudden shutdown at 20–30% on the Blade L110 after a cell swap

This is a voltage cliff issue, not a defective cell. The L110's fuel gauge IC was calibrated to the discharge curve of the old, degraded cell. When the modem transmits or the screen peaks in brightness, current draw spikes and the new cell's actual voltage drops briefly below the low-voltage cutoff threshold — even though the reported percentage still reads 20–30%. The phone shuts down to protect the cell. One complete discharge-charge cycle recalibrates the coulomb counter to the new cell's curve and eliminates the false cutoff.

Phone won't power on after the replacement battery sat in storage

Li-ion cells in storage self-discharge over time. If the cell voltage drops below approximately 2.5V per cell, the BMS enters lockout mode and blocks all current flow — including the charge current needed to recover the cell. The phone shows nothing when connected to a charger. Use a charger capable of delivering a trickle charge at 0.1C (around 140mA for this 1400mAh cell) to bring the cell voltage back above 3.0V, at which point the BMS re-initialises and normal charging resumes. Connect to a USB port and leave it for 20–30 minutes before expecting the charging indicator to appear.