About this replacement
Asus ZenPad C 7.0 P01Z — 3.85V Li-Polymer Replacement Battery (C11P1517)
This 3.85V, 4650mAh (17.9Wh) lithium-polymer battery replaces the original C11P1517 unit in the Asus ZenPad C 7.0 P01Z tablet. It also fits the ZenPad 10 Z300CNL and ZenPad Z300M. The physical dimensions are 103.56 × 95.56 × 2.70mm — verify these against your existing cell before ordering.
- ZenPad C 7.0 and Z300 series compatibility: These models share the C11P1517 cell specification, the same flat connector pinout, and a compatible BMS handshake with the charge IC on this board family. Swapping between these variants does not require firmware changes.
- Bench tested on actual hardware: We ran this cell through charge and load cycles on a ZenPad C 7.0 P01Z unit. The BMS accepted the charge IC handshake without fault codes, and cell voltage held stable across display and Wi-Fi combined load.
- Fuel gauge recalibration after swap: After installation, run one full discharge to automatic shutoff, then charge uninterrupted to 100%. This resets the fuel gauge IC calibration against the new cell and clears the inaccurate percentage readings that commonly appear after a battery swap.
ZenPad C 7.0 shutting down between 15–25% remaining
This happens when the display backlight and Wi-Fi radio draw simultaneously, pulling cell voltage below the BMS cutoff threshold before the reported percentage reaches zero. The fuel gauge IC still references the old cell's discharge curve, so it misreads how much capacity remains at that voltage level. After the recalibration cycle described above, the shutdown point drops back to near 0%. If it persists past two full cycles, check that the battery connector is fully seated — a partial connection raises internal resistance and triggers early cutoff.
Fast charging unavailable after battery replacement
The ZenPad C 7.0 uses USB-PD negotiation to enable faster charge rates. On a freshly installed cell, the charge IC sometimes withholds fast charge until one standard accepted charge cycle completes. Plug the tablet into the original Asus charger — not a third-party adapter — and let it run one full uninterrupted charge from low to 100%. After that cycle, fast charge negotiation resumes normally. If it still does not engage, confirm the charger outputs at least 5V/2A, as lower-output adapters skip the negotiation step entirely.