Verizon Galaxy Note II SCH-I605 Replacement Battery 3.7V 2200mAh

Verizon SCH-I605 Galaxy Note II — 3.7V Li-ion Replacement Battery

This 3.7V Li-ion cell delivers 2200mAh (8.14Wh) of capacity to the Samsung Galaxy Note II on Verizon's SCH-I605 platform. It fits all three variant model codes: SCH-I605, SCHI605TSV, and SCHI605ZWV. The cell dimensions are 75.20 × 55.40 × 5.80mm — matching the original tray without modification.

• SCH-I605 variant compatibility: The TSV and ZWV suffix variants share the same battery tray dimensions and voltage rail as the base SCH-I605. All three use the same connector pinout and BMS handshake, so one cell covers the full Verizon Note II lineup without any hardware changes.
• Bench tested on actual hardware: We cycled this cell on a Note II unit, confirming the BMS accepted the charge handshake on the first connect. The protection circuit responded correctly to both low-voltage cutoff and over-current conditions during the test discharge.
• Fuel gauge recalibration on first use: After installation, disable fast charging and run one complete discharge-to-charge cycle at standard rate. This gives the fuel gauge IC time to map the new cell's discharge curve before high-current charging pushes current into an uncalibrated cell.

Why the SCH-I605 reports wrong battery percentage after a cell swap

The Note II uses a coulomb counter that builds its model of the cell incrementally over several charge cycles. When you swap the physical cell, the IC still holds the old cell's capacity curve in memory. The percentage readout reflects that stale curve, not the new cell's actual state of charge. One full discharge below 10% followed by a complete charge to 100% forces the IC to reset and relearn the new cell's parameters.

Sudden shutdown at 20–30% on the replacement cell

This is a voltage cliff, not a capacity problem. Under modem or display load, the cell's internal resistance causes voltage to sag below the BMS cutoff threshold even though the reported percentage reads mid-range. The fuel gauge IC hasn't yet correlated that voltage drop to the correct state-of-charge point on the new cell. Run two full calibration cycles and monitor shutdown voltage — it should stabilise above 3.4V under load once the IC has accurate data.