About this replacement
Acer Chromebook Tab 10 / D651N — 3.84V Li-Polymer Replacement Battery (SQU-1706)
This 3.84V, 8750mAh Li-Polymer battery replaces the original SQU-1706 (also listed as KT.00201.004) in the Acer Chromebook Tab 10 and D651N. It powers the tablet's Rockchip processor, IPS display, and ChromeOS system components. Dimensions are 138.80 × 107.00 × 3.80mm — confirm clearance inside your chassis before installation.
- Chromebook Tab 10 and D651N fit: Both models share the same battery bay geometry, connector pinout, and BMS handshake protocol. The SQU-1706 part number covers the full production run of these two variants, so one cell works across both without modification.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on a Chromebook Tab 10 unit. The BMS accepted the charge IC handshake on the first cycle, reported state-of-charge correctly after one full calibration pass, and held voltage within spec at both light and display-intensive loads.
- Fuel gauge reset after installation: After fitting this battery, run the tablet down to automatic shutoff — do not force-power-off — then charge uninterrupted to 100% without using the device. This single cycle resets the ChromeOS fuel gauge IC against the new cell's actual capacity and eliminates the inaccurate percentage readings that appear immediately after a swap.
Chromebook Tab 10 shutting down at 15–25% remaining
The Tab 10 draws a combined load from the display backlight, WiFi radio, and Rockchip SoC simultaneously during active use. Under this combined draw, cell voltage drops faster than the fuel gauge IC predicts — especially on an uncalibrated replacement cell. The ChromeOS low-voltage protection threshold triggers a shutdown before the displayed percentage reaches zero. Run one full discharge-to-shutoff cycle followed by an uninterrupted charge to 100%; this aligns the fuel gauge model to the cell's actual voltage curve and pushes that cutoff point back down below 5%.
USB-PD fast charging not available after battery swap
The Tab 10's charge controller uses USB Power Delivery negotiation to step up to higher charging rates. On a fresh replacement cell, the charge IC runs a conservative first-cycle current profile until it confirms cell health — this is normal behaviour, not a fault. Fast charge becomes available once the controller has completed one accepted full charge cycle. If fast charging still does not appear after that first cycle, switch to the original Acer charger and retry; third-party USB-C chargers that do not fully support USB-PD 2.0 will hold the charge rate at 5V regardless of cell state.