Wiko View V12BNL Replacement Battery 3.85V 2400mAh

Wiko View / Harry 2 / Tommy 3 Plus — 3.85V Li-ion Replacement Battery (V12BNL)

This 3.85V, 2400mAh Li-ion cell replaces the original battery in the Wiko View, Harry 2, Tommy 3 Plus, and W-V600 smartphones. It matches the OEM voltage rail and physical footprint (77.10 × 59.90 × 4.10 mm), so it seats correctly in the battery bay without modification. Capacity is 9.24Wh — identical to the factory spec.

• View, Harry 2, Tommy 3 Plus platform fit: These models share the same battery bay dimensions, connector pinout, and BMS communication protocol. One cell covers the full platform — no adapter or wiring change needed.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on a View unit. The BMS accepted the cell without fault flags, charge current ramped normally to CV phase, and the protection circuit tripped correctly at low-voltage cutoff.
• Fuel gauge recalibration on first use: On first use after installation, disable fast charging and run one full discharge-to-charge cycle. This lets the fuel gauge IC map the new cell's discharge curve before it accepts high charge current — skipping this step causes the percentage counter to drift or jump in the first few days.

Sudden shutdown at 20–30% on the Wiko View after a cell swap

A fresh cell has a steeper voltage-vs-capacity curve than a worn one. When the modem transmits or the screen hits full brightness, current draw spikes and cell voltage dips sharply — the BMS reads this as a low-voltage fault and shuts down. This is not a defective cell; it is the fuel gauge IC working from stale calibration data. Run one complete discharge cycle from 100% down to auto-shutdown, then charge uninterrupted to 100%. After that full cycle, the coulomb counter recalibrates and the shutdowns stop.

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

Li-ion cells shipped or stored at low charge can drop below 2.5V per cell during transit. Below that threshold, the BMS enters lockout mode and blocks charge current to prevent plating damage. The phone will show nothing on screen — no charging icon, no vibration. Connect it to a wall adapter (not a PC port) and leave it for 20–30 minutes without pressing the power button. Most BMS circuits on this platform use a trickle pre-charge recovery routine that runs silently; once voltage climbs above 3.0V, normal charging resumes and the screen will respond.