Wiko View2 Go TLP18H06 Replacement Battery 3.85V 3900mAh

Wiko View2 Go / M2354 — 3.85V Li-Polymer Replacement Battery (TLP18H06)

This is a 3.85V, 3900mAh Li-Polymer battery for the Wiko View2 Go and M2354 smartphones. It replaces OEM part TLP18H06 and fits the same cell slot and connector as the factory unit. Capacity is rated at 15.02Wh.

• View2 Go and M2354 compatibility: Both models share the same battery bay dimensions, connector pinout, and BMS handshake protocol — which is why a single TLP18H06 cell covers both. The 82.38 × 63.48 × 4.24mm footprint matches the chassis cavity without modification.
• Bench tested on actual hardware: We cycled this cell through a full discharge-to-cutoff sequence and verified the BMS triggers correctly at the low-voltage threshold. Charge acceptance was confirmed across standard 5V input without the protection circuit tripping prematurely.
• Fuel gauge recalibration on first use: On first use after installation, disable fast charging and run one complete discharge-charge cycle at standard rate. This lets the phone's fuel gauge IC map its coulomb counter against the new cell's actual discharge curve before fast charge current is applied to an uncalibrated cell.

Sudden shutdown at 20–30% on the View2 Go after a cell swap

The Wiko View2 Go's fuel gauge IC stores a charge model calibrated to the original cell. After swapping to a new cell, the stored curve no longer matches the new cell's voltage profile. When the modem fires a high-current burst during a call or data session, the new cell's voltage dips below the threshold the IC expects at that state of charge — and the phone shuts down even though capacity remains. One full discharge-to-shutdown cycle followed by an uninterrupted charge to 100% forces the coulomb counter to rebuild its endpoint references against the replacement cell.

Phone won't power on after sitting in storage with a flat battery

Li-Polymer cells that self-discharge below approximately 2.5V per cell trigger a BMS lockout — the protection circuit opens to prevent damage from deep discharge. The phone shows no response to the charge cable because the BMS will not pass current to the system board until cell voltage recovers to the recovery threshold. Connect the phone to a 5V wall adapter — not a PC USB port — and leave it undisturbed for 15–20 minutes. Once the BMS sees sufficient cell voltage recovery, the charging indicator will appear and normal boot becomes possible.