About this replacement
Acer Iconia Tab B1 — 3.7V Li-ion Replacement Battery (BAT-715(1ICP5/60/80))
This is a 3.7V, 2400mAh Li-ion battery for the Acer Iconia Tab B1 tablet range. It fits the Iconia Tab B1-710, Iconia B1-A71, and Iconia B1-A71-83174G00nk. Voltage and capacity match the original OEM specification exactly.
- B1-710 and B1-A71 compatibility: Both models run the same 3.7V single-cell architecture with the same connector pinout and BMS handshake protocol. One battery covers the full B1 first-generation line without modification.
- Bench tested on actual hardware: We ran this battery through charge and discharge cycles on a B1-A71 unit. The BMS accepted the charge cycle without fault flags, and the protection circuit triggered correctly at the low-voltage cutoff threshold.
- Fuel gauge IC reset after installation: After fitting this battery, run one full discharge to automatic shutoff, then charge uninterrupted to 100%. The Iconia B1's fuel gauge IC calibrates against cell history — skipping this step causes the percentage counter to drift against the new cell's actual state of charge.
Iconia Tab B1 shutting down between 15% and 25% remaining
The Iconia B1's display backlight and WiFi radio pull simultaneous current during active use. Under that combined load, a cell near end-of-life — or a new cell with an uncalibrated gauge — hits the BMS low-voltage cutoff before the OS-reported percentage reaches zero. The shutdown happens because the actual cell voltage drops below 3.0V while the fuel gauge still reads 15–20%. Running one full discharge-to-shutoff cycle and recharging to 100% re-aligns the fuel gauge to the new cell's actual voltage curve and resolves the early cutoff.
Tablet showing wrong battery percentage after battery swap
The Iconia B1 stores charge history in the fuel gauge IC, which was calibrated to the original cell's discharge curve. A new cell has a different internal resistance profile, so the IC immediately reads the wrong state of charge. This causes the percentage to jump erratically or report full charge while the device shuts down unexpectedly. To fix it, discharge the tablet completely until it powers off on its own, then charge it uninterrupted to 100% — this gives the IC one clean cycle to recalibrate against the new cell.