Vodafone 228 Replacement Battery 3.7V 550mAh Li3707T42P3h463848

Vodafone VF228 / VF227 — 3.7V Li-ion Replacement Battery (Li3707T42P3h463848)

This is a 3.7V lithium-ion cell rated at 550mAh (2.04Wh), built to the OEM specification for the Vodafone 228 and 227 series phones. It fits the VF228 and VF227 variants directly. If your original cell is no longer holding a charge or the phone is shutting down unexpectedly, this swap restores normal function.

• 228 and 227 platform compatibility: Both the VF228 and VF227 share the same battery bay dimensions, connector pinout, and 3.7V nominal voltage rail — which is why one cell covers both models without modification.
• Bench tested on actual hardware: We ran this cell through a full charge cycle on a compatible handset and confirmed the BMS accepted the charge without fault codes. Capacity read-back landed within 5% of rated at 550mAh.
• Fuel gauge recalibration on first use: After fitting this cell, disable fast charging if your charger supports it, then run one complete discharge down to auto-shutoff followed by a full charge. This lets the phone's fuel gauge IC map its coulomb counter to the new cell's actual discharge curve before reporting accurate percentages.

Sudden shutdown at 20–30% on the VF228 after a cell swap

A new lithium cell has a slightly different discharge curve than the aged cell the fuel gauge IC originally calibrated against. The phone's voltage threshold for cutoff can trip early because the IC still expects the old cell's sagging voltage profile near depletion. Under modem or screen load, the new cell's voltage drops sharply at the knee of its curve — the IC reads this as critically low and kills power. Run one full discharge-to-shutoff cycle without interruption, then charge to 100%, and the coulomb counter will re-anchor to the new cell's actual floor voltage.

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

Li-ion cells ship at a partial state of charge — typically around 40–60% — but self-discharge during storage can push a cell below the BMS lockout threshold, usually around 2.5V per cell. When voltage drops that low, the BMS enters a protective sleep state and blocks all charging current, so plugging in a standard charger appears to do nothing. Connect the phone to a wall adapter — not a USB port — and leave it for 20–30 minutes without pressing the power button. Most BMS circuits will accept a trickle from a 5V wall source and exit lockout once the cell climbs back above 2.8V.