About this replacement
Xplore Bobcat Rugged IX101B1 / XSlate B10 — 7.4V Li-Polymer Replacement Battery (BOBCACLL4)
This is a 7.4V, 5200mAh Li-Polymer replacement battery for the Xplore Bobcat Rugged IX101B1 and XSlate B10 series rugged tablets. It carries OEM part number BOBCACLL4 and replaces the original internal pack directly. Fits the IX101B1, XSlate B10, XSlate B10 IX101B2, and XSlate IX101B1 platforms.
- IX101B1 and XSlate B10 platform fit: These models share the same internal battery bay dimensions, connector pinout, and BMS handshake protocol — which is why a single cell covers both the Bobcat and XSlate B10 lines. The 112.20 x 87.20 x 13.70mm pack fits within the chassis without modification.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the IX101B1 platform. The BMS accepted the pack without fault codes, balanced cell voltage across the polymer stack, and allowed the OS to read state-of-charge correctly after calibration.
- Fuel gauge calibration after installation: After fitting this battery, run the tablet down to automatic shutoff, then charge uninterrupted to 100%. This resets the fuel gauge IC against the new cell's actual capacity curve and eliminates the inaccurate percentage readings that commonly appear after a swap.
Tablet shutting down at 15–25% remaining after battery swap
When the display backlight and WiFi radio run simultaneously at full load, the combined current draw causes a voltage sag at the cell terminals. If the fuel gauge IC is still calibrated to the old cell's discharge curve, the tablet's low-voltage cutoff fires earlier than the displayed percentage suggests. The tablet interprets the sag as a critically low state of charge and shuts down — even though charge remains in the cell. One full discharge-to-shutoff cycle followed by an uninterrupted charge to 100% recalibrates the gauge IC and moves the cutoff back to the correct voltage threshold.
Fast charging unavailable after battery replacement on XSlate B10
The XSlate B10 uses USB-PD negotiation to enable higher charge rates. After a battery swap, the charge IC on the new cell needs to complete at least one full accepted charge cycle before the controller confirms the pack's impedance profile and enables elevated charging current. Connecting the charger immediately after installation often results in the device defaulting to standard 5V charging. Plug in, allow a complete charge to 100%, disconnect, and reconnect — USB-PD negotiation typically resumes at that point.