About this replacement
Medion Lifetab P10602 — 3.8V Li-Polymer Replacement Battery (BT-G017)
This 3.8V, 7600mAh lithium-polymer battery replaces the original BT-G017 (also listed as SMB-H1007) in the Medion Lifetab P10602 10-inch Android tablet. It restores power to a device that no longer holds a charge or fails to turn on. Dimensions are 136.30 × 121.70 × 3.00mm — verify your original cell before installing.
- Lifetab P10602 fit: The P10602 uses a flat Li-Polymer pouch cell on a dedicated connector tied directly to the tablet's charge IC and fuel gauge. This replacement matches that connector, cell footprint, and the 3.8V nominal rail the board expects.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on the P10602 board. The charge IC accepted the new cell without fault flags, and the BMS reported state-of-charge cleanly across the full voltage window.
- Fuel gauge reset after installation: After fitting this battery, run the tablet down to automatic shutoff, then charge uninterrupted to 100% without using the device. This recalibrates the fuel gauge IC against the new cell's actual capacity curve and clears the inaccurate percentage readings that almost always appear after a swap.
Lifetab P10602 shutting down at 15–25% remaining
This happens when the fuel gauge IC is still calibrated to the old cell's degraded voltage curve. The new cell's voltage drops faster than the old profile expects in the final charge band, so the system calls a low-voltage shutdown early. It is not a fault with the replacement cell. One full discharge-to-shutoff followed by an uninterrupted charge to 100% rewrites the gauge's reference points. After that cycle, shutdowns should track correctly down to the real 3.2V floor.
Fast charging not working after fitting the BT-G017 replacement
The Lifetab P10602 charge IC completes a USB-PD or proprietary handshake during the first accepted charge cycle on a new cell. Until that cycle finishes, the controller may hold the session at standard 5V rather than negotiating a higher voltage. Plug in with the screen off and leave it to complete a full charge without interruption. Once that first cycle is logged, subsequent sessions should negotiate the faster charge rate as normal.