ZTE V910 Tablet Replacement Battery 3.7V 3400mAh Li-ion

MTC ZTE V910 (1055) — 3.7V Li-ion Replacement Battery (Li3734T42P3hC86049)

This is a 3.7V, 3400mAh Li-ion battery for the ZTE V910 Android tablet, OEM part number Li3734T42P3hC86049. It fits the 1055 model designation and restores power to a tablet that no longer holds charge. Physical dimensions are 127.70 × 60.13 × 4.67mm — measure your original before ordering if you are unsure.

• ZTE V910 / 1055 platform fit: The V910 uses a single-cell 3.7V nominal Li-ion configuration with a standard BMS handshake on the connector. The Li3734T42P3hC86049 part number maps directly to this cell format, voltage rail, and connector pinout — no adapters required.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a V910 unit. The BMS accepted the cell without error flags, held voltage within the expected 3.0V cutoff floor to 4.2V ceiling, and communicated state-of-charge normally to the OS throughout.
• Fuel gauge calibration after swap: After installing this battery, run one full discharge to automatic shutoff, then charge uninterrupted to 100%. This forces the tablet's fuel gauge IC to recalibrate against the new cell and eliminates the inaccurate percentage readings that commonly appear in the first few cycles after a swap.

ZTE V910 shutting down at 15–25% remaining

This happens because the V910's display backlight and WiFi radio together create a combined current draw that causes voltage to sag sharply near the bottom of the cell's discharge curve. The BMS reads that sag as a cutoff event even though the fuel gauge still shows charge remaining. It is not a defective battery — it is the fuel gauge IC misreading voltage under load. Run one complete discharge-to-shutoff cycle followed by an uninterrupted full charge, and the shutoff threshold will shift back to below 5%.

Battery percentage dropping faster than expected from 100%

A new cell and an old fuel gauge IC start out of sync — the IC was calibrated to the wear curve of the original battery, not this one. The result is a percentage that falls quickly from 100% and then slows or stalls mid-range. This is gauge drift, not a capacity problem. One full discharge to automatic shutoff followed by a full uninterrupted charge to 100% resets the calibration. After that cycle, the percentage display tracks accurately against the actual 3400mAh cell capacity.