T-Mobile Raider 4G Replacement Battery BH39100 3.7V 1600mAh

T-Mobile Raider 4G — 3.7V Li-ion Replacement Battery (BH39100)

This 3.7V, 1600mAh Li-ion cell is a direct swap for the T-Mobile Raider 4G smartphone. It replaces OEM part numbers BH39100, 35H00167-00M, 35H00167-01M, and 35H00167-03M. If your original cell is swelling, no longer holding charge, or dropping out unexpectedly, this is the replacement cell.

• Raider 4G compatibility: The Raider 4G uses a fixed 3.7V single-cell architecture with a standard connector pinout shared across these OEM part numbers. Any of those four HTC/T-Mobile part numbers seat correctly in the same battery bay and connect to the same charge IC on the motherboard.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the Raider 4G platform. The BMS handshake completed without fault flags, and the charge IC accepted the cell without triggering overvoltage or temperature cutoff at full charge termination.
• Fuel gauge recalibration after installation: On first use, disable fast charging if available and run one complete discharge-charge cycle from 100% to near-zero and back. This lets the fuel gauge IC map its coulomb counter against the new cell's actual discharge curve before normal use resumes.

Sudden shutdown at 20–30% on the Raider 4G after a cell swap

This is a voltage cliff problem, not a capacity problem. Under modem TX bursts or screen-on load, the new cell's internal impedance causes a brief voltage drop that the fuel gauge IC reads as a critical low-voltage event — even when the state-of-charge estimate still shows 20–30%. The phone's protection circuit trips and cuts power before the gauge has time to update. One full discharge-charge cycle recalibrates the coulomb counter and typically moves the cliff down to below 5%, where it belongs.

OS showing wrong battery percentage after replacing the Raider 4G cell

The fuel gauge IC stores a discharge curve calibrated to the old cell's impedance profile. When a new cell goes in, that stored curve no longer matches the actual voltage-to-charge relationship of the replacement cell. The result is percentage readings that jump, stall, or terminate charging early. Drain the battery fully until the phone shuts off, then charge uninterrupted to 100% — this forces the fuel gauge IC to re-anchor its reference points to the new cell.