HTC Incredible S Replacement Battery BG32100 3.7V 1350mAh

HTC Incredible S S710E — 3.7V Li-ion Replacement Battery (BG32100)

This is a 3.7V, 1350mAh Li-ion cell that replaces the original battery in the HTC Incredible S, S710E, and PG32130. It fits the same cavity and connector as OEM part BG32100. Use it when the original cell no longer holds a usable charge or fails to power on after a full charge cycle.

• S710E and PG32130 compatibility: These model numbers share the same mainboard voltage rail, physical footprint, and connector latch. All draw power from the same 3.7V nominal supply, so one cell fits the full range without modification.
• Bench tested on actual hardware: We ran this cell through a full charge-discharge cycle on an S710E unit. The BMS accepted charging immediately, held cutoff at 4.2V, and tripped the low-voltage cutoff cleanly without the phone freezing at the lock screen.
• Fuel gauge recalibration on first use: After installing this cell, disable any fast-charge mode and run one full discharge-charge cycle at standard current. This lets the fuel gauge IC map its coulomb counter against the new cell's actual discharge curve before the OS starts reporting accurate percentages.

Why the Incredible S shuts down suddenly at 20–30% with a new cell

The S710E's fuel gauge IC stores a learned discharge curve from the previous cell. When a new cell is installed, the stored curve no longer matches the actual voltage-capacity relationship of the replacement. Under modem or display load, the cell voltage drops faster than the IC expects, crossing the hardware cutoff threshold while the OS still shows 20–30% remaining. Running one full uninterrupted discharge-charge cycle at standard current forces the IC to relearn the curve and eliminates the premature shutdowns.

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

Li-ion cells self-discharge in storage, and if voltage drops below approximately 2.5V per cell, the BMS trips a lockout to prevent damage. The phone will show no sign of life — no boot logo, no charging indicator — when connected to a charger. Use a dedicated Li-ion charger or a charger with a "boost" or "wake" mode to push a small pre-charge current into the cell until voltage climbs above 3.0V. Once the BMS releases the lockout, connect the phone to its standard charger and allow a full charge before powering on.