Hisense D2-M Replacement Battery 3.8V 2300mAh LP38230

Hisense D2-M — 3.8V Li-Polymer Replacement Battery (LP38230)

This is a 3.8V, 2300mAh Li-Polymer replacement battery for the Hisense D2-M smartphone. It carries OEM part number LP38230 and matches the original cell's physical footprint at 72.50 x 49.45 x 4.00mm. Install it when the original cell no longer holds a usable charge or fails to power the phone through a normal day.

• D2-M fit confirmation: The D2-M uses a 3.8V nominal Li-Polymer cell on a shared voltage rail with the charge IC and fuel gauge IC. This replacement matches that rail, the connector pinout, and the BMS handshake the phone's charge controller expects.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the bench, confirmed BMS communication with the charge IC, verified cutoff behaviour at low voltage, and checked that the protection circuit trips correctly on overcurrent.
• Fuel gauge recalibration on first use: On first use after installation, disable fast charging and run one full discharge-charge cycle at standard rate. This lets the fuel gauge IC map the new cell's discharge curve before the coulomb counter starts reporting percentage to the OS.

Sudden shutdown at 20–30% on the Hisense D2-M after a cell swap

The D2-M's fuel gauge IC retains the discharge curve data from the original cell. When a new cell goes in, the coulomb counter is still calibrated to the old cell's voltage-to-capacity relationship. Under modem or screen load, the new cell hits a voltage cliff the fuel gauge doesn't recognise — the phone reads 25% but the cell is actually near cutoff voltage. One complete slow discharge-charge cycle forces the IC to relearn the curve and eliminates the premature shutdown.

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

Li-Polymer cells self-discharge during storage. If the LP38230 cell shipped or sat long enough to drop below approximately 2.5V, the BMS enters lockout mode and blocks all charge current to prevent unsafe recovery. The phone shows nothing — no charging animation, no response. Connect the phone to a wall adapter rated at 5V/1A or higher and leave it for 20–30 minutes without interruption; most charge ICs include a trickle pre-charge stage that will slowly bring the cell back above the BMS re-enable threshold. If the phone still shows no response after that window, check the cable and adapter before assuming cell failure.