Hisense E956Q Replacement Battery 3.8V 1700mAh LI38170

Hisense E956Q / U958 / T958 Series — 3.8V Li-ion Replacement Battery (LI38170)

This is a 3.8V, 1700mAh Li-ion battery carrying OEM part number LI38170. It fits the Hisense E956Q, U958, HS-EG958, and T958 smartphones. Capacity figure comes from the product data — 6.46Wh total stored energy.

• E956Q / U958 / T958 platform fit: These models share the same battery bay dimensions (64.40 × 52.90 × 4.20mm), a common 3.8V cell voltage rail, and the same connector pinout — which is why a single LI38170 cell covers all of them without modification.
• Bench tested on actual hardware: We cycled this cell through a full charge and discharge on the E956Q. The BMS accepted the charge handshake cleanly, voltage held stable across the discharge curve, and no protection trip was triggered at either end of the cycle.
• Fuel gauge recalibration on first use: On first use after installation, disable fast charging and run one complete discharge-charge cycle at standard rate. This gives the fuel gauge IC a clean reference curve against the new cell before high-current charging pushes current into an uncalibrated cell.

Sudden shutdown at 20–30% on the Hisense E956Q after a cell swap

This happens when the phone's fuel gauge IC is still using the discharge curve it mapped to the old, degraded cell. The new cell has a steeper voltage drop under modem or screen load near the bottom of its range. When actual cell voltage dips below the SoC floor the firmware expects — typically around 3.5V under load — the phone cuts power before the percentage readout reaches zero. Running one full discharge cycle to automatic shutdown, then charging uninterrupted to 100%, resets the coulomb counter reference point and stops the early cutoff.

Battery percentage jumping erratically after fitting LI38170

Erratic percentage readings — jumping 10–15 points up or down without corresponding use — indicate the fuel gauge IC has not yet built a complete discharge profile for the replacement cell. The coulomb counter is interpolating from an old, mismatched curve. This is not a faulty battery. Charge the phone to 100%, use it down to automatic shutdown, then charge back to 100% without interruption. After that single calibration cycle, the percentage display stabilises because the IC now has an accurate full-range voltage-to-capacity map for the LI38170 cell.