Dopod C750 Replacement Battery 3.7V 950mAh 35H00102-00M

Dopod C750 — 3.7V Li-ion Replacement Battery (35H00102-00M)

This is a 3.7V, 950mAh Li-ion cell built to fit the Dopod C750 smartphone. It replaces OEM part numbers 35H00102-00M and KII0160. The physical dimensions are 44.74 × 36.63 × 5.44mm — measure your bay before ordering if you're unsure.

• C750 platform fit: The C750 uses a compact single-cell Li-ion bay with a three-contact connector carrying charge, ground, and a thermistor line. This cell matches that pinout and the BMS voltage thresholds the charging IC expects to see on initial contact.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on a C750 unit. The BMS accepted the charge handshake on first connection and the protection circuit tripped correctly at the low-voltage cutoff floor — no runaway charge events observed.
• Fuel gauge recalibration on first use: On first use after installation, run the phone down to auto-shutdown, then charge to 100% without interruption. This gives the fuel gauge IC one full reference cycle against the new cell's discharge curve before the OS starts reporting percentages.

Sudden shutdown at 20–30% on the replacement cell

This is a voltage cliff, not a capacity fault. When the modem radio or screen peaks its current draw, a new cell with an uncalibrated fuel gauge may show 25% on screen while the actual resting voltage has already dropped near the BMS cutoff floor. The protection circuit cuts power before the percentage reading catches up. One full discharge-to-shutdown, then charge-to-100% cycle forces the coulomb counter to remap its endpoints against real cell behaviour. After that cycle, the reported percentage tracks actual voltage far more closely.

Phone won't power on after sitting in storage with the replacement installed

Li-ion cells self-discharge during storage, and if the C750 sat long enough, the cell voltage may have dropped below 2.5V — the point where the BMS enters lockout to prevent deep-discharge damage. The phone will show nothing when you press the power button. Connect the original charger and leave it untouched for 20–30 minutes; most BMS circuits begin a trickle pre-charge recovery sequence once the charger is detected, bringing the cell back above the lockout threshold. If the charge LED doesn't light within 30 minutes, check the charger output — it should read 5V DC at the connector.