Dopod C500 Compatible Battery LIBR160 3.7V 2250mAh

Dopod C500 — 3.7V Li-ion Replacement Battery (LIBR160)

This is a 3.7V, 2250mAh Li-ion battery for the Dopod C500 Windows Mobile smartphone. It replaces OEM part numbers LIBR160 and 35H00082-00M. Install it when the original cell no longer holds charge through a normal day of calls and messaging.

• C500 platform fit: The C500 uses a single-cell Li-ion pack with a standard three-contact connector — positive, negative, and a thermistor line the charge IC uses to monitor cell temperature during charging. This replacement matches that connector pinout and cell geometry exactly.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the C500 platform. The onboard charge IC accepted the cell without fault flags, and the BMS held cutoff correctly at the low-voltage threshold without tripping prematurely under screen and modem load.
• Fuel gauge recalibration on first cycle: The C500's fuel gauge IC learned the old cell's discharge curve over months of use. After swapping in a new cell, run one full discharge to near-empty, then charge uninterrupted to 100% before normal use. This gives the fuel gauge a clean reference curve for the new cell.

Why the C500 reports wrong battery percentage after a cell swap

The C500 runs a coulomb-counting fuel gauge that builds its capacity model from previous charge and discharge history. When you replace the cell, that stored model no longer matches the new cell's actual discharge curve. The gauge reads from a stale baseline, so it can report 40% remaining on a cell that is close to cutoff voltage. One full uninterrupted discharge-charge cycle overwrites the old model and brings percentage readings back into line.

Sudden shutdown at 20–30% on the Dopod C500

This happens when the cell voltage drops sharply under peak load — typically when the modem transmits or the backlight is at full brightness. A new cell with an uncalibrated fuel gauge shows a percentage that does not reflect actual remaining voltage. The phone's hardware undervoltage protection cuts power the moment cell voltage dips below roughly 3.0V, regardless of what the OS is displaying. Complete one full calibration cycle as described above, and confirm the shutdown stops occurring before attributing it to a faulty cell.