HTC S630 Replacement Battery LIBR160 3.7V 2250mAh

HTC S630 — 3.7V Li-ion Replacement Battery (LIBR160)

This is a 3.7V lithium-ion cell rated at 2250mAh (8.33Wh), built to the LIBR160 spec. It fits the HTC S630 smartphone directly. If your original cell is swollen, fails to hold a charge, or the phone shuts off unexpectedly, this is the direct swap.

• HTC S630 fit: The S630 uses the LIBR160 form factor — 54.13 x 40.57 x 10.84mm — with a fixed connector orientation and a BMS that handshakes over the same three-contact strip. No adapter, no modification required.
• Bench tested on actual hardware: We cycled this cell through full discharge and charge sequences on the S630 platform. The BMS accepted the cell without error flags, and charge termination triggered correctly at full voltage.
• Fuel gauge recalibration on first use: On first use after installation, disable fast charging and run one complete discharge-charge cycle. This lets the fuel gauge IC map the new cell's discharge curve before committing that data to memory — skipping this step is the primary cause of erratic percentage readings.

Sudden shutdown at 20–30% on the S630 after a cell swap

The S630's fuel gauge IC stores a discharge curve from the previous cell. A new cell with different internal impedance hits a voltage cliff earlier than the old curve predicts. The phone sees the voltage drop under modem or screen load and fires a low-voltage shutdown — even though the percentage readout still shows capacity remaining. One full discharge-charge cycle with no fast charging rewrites the curve. After that cycle, shutdowns at 20–30% typically stop.

Phone reports wrong battery percentage after installing the replacement

The coulomb counter in the S630 was calibrated against the original cell's internal resistance profile. A replacement cell — even at the same rated capacity — presents a different discharge slope, so the reported percentage drifts from the real state of charge. Drain the phone completely until it powers off on its own, then charge uninterrupted to 100% without removing the cable early. That single cycle resets the coulomb counter reference points and tightens percentage accuracy.