Alcatel V860 Replacement Battery 3.7V 1100mAh CAB6050001C2

Alcatel V860 / OT-V860 — 3.7V Li-ion Replacement Battery (CAB6050001C2)

This is a 3.7V, 1100mAh Li-ion cell for the Alcatel V860 and OT-V860 smartphones. It replaces OEM part numbers CAB6050001C2 and CAB6050000C1. If your original cell is swelling, dropping charge rapidly, or no longer powering the handset through a standard day, this is a direct swap.

• V860 and OT-V860 compatibility: Both model designations share the same battery bay geometry, connector pinout, and BMS handshake protocol — one cell covers both. The 64.65 × 43.92 × 3.94mm footprint fits the tray without modification.
• Bench tested on actual hardware: We cycled this cell through charge and load on the V860 platform. The BMS accepted charge from the device's onboard charge IC without triggering overcurrent cutoff, and voltage held stable under combined modem and screen load.
• Fuel gauge recalibration on first use: On first use after installation, disable fast charging if your charger supports it and run one full discharge-to-charge cycle before resuming normal use. This gives the fuel gauge IC time to map the new cell's discharge curve before high-current charging pushes current into an uncalibrated state.

Sudden shutdown at 20–30% on the V860 after a cell swap

The V860's fuel gauge IC stores a discharge curve calibrated to the original cell. When you fit a new cell, the IC's cutoff voltage model no longer matches actual cell chemistry. Under modem or screen load, the new cell's terminal voltage drops faster than the IC expects, triggering an emergency shutdown even though the coulomb counter still shows charge remaining. Run two full discharge-to-charge cycles without interruption — by the second cycle the IC recalibrates its endpoint voltage to approximately 3.4V and shutdowns stop.

Device not powering on after the replacement battery sat in storage

Li-ion cells self-discharge at roughly 2–3% per month in storage. If the cell dropped below 2.5V before installation, the BMS enters lockout mode and blocks charge current to prevent thermal runaway from over-discharged cells. The phone will show nothing — no boot screen, no charging indicator. Connect to a wall adapter rated at 5V/1A and leave it for 20–30 minutes without pressing the power button; the BMS trickle-charges the cell back above the 2.5V threshold before allowing normal charge current to resume.