About this replacement
Dell XPS 13 9360 — 7.6V Li-Polymer Replacement Battery (PW23Y)
This is a 7.6V, 7850mAh (59.66Wh) Li-Polymer replacement battery for the Dell XPS 13 9360 ultrabook. It fits the 9360-D1605G, 9360-D3705S, and over 29 confirmed XPS 13 9360 variants. OEM part numbers PW23Y, TP1GT, RNP72, and 0RNP72 all cross-reference to this cell.
- XPS 13 9360 platform compatibility: All listed 9360 variants share the same 7.6V battery rail, physical connector, and BMS handshake protocol. The BIOS communicates with the battery's EEPROM to read capacity, cycle count, and health status — so the replacement cell must match voltage and chemistry exactly, which this one does.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a 9360 unit. The BMS accepted the cell without fault codes, the BIOS read the Wh rating correctly after one full calibration cycle, and the charge controller reached full capacity without interruption.
- Post-install calibration on the XPS 13 9360: After fitting this battery, run one full discharge to hibernate cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning the 9360 typically shows after any cell swap.
BIOS reporting poor battery health immediately after replacement
The XPS 13 9360 BIOS reads health data stored in the old cell's EEPROM and compares it against the new cell's reported values. When you swap cells, the BIOS sees a mismatch and flags the battery as degraded or unknown — even if the new cell is at full capacity. This is not a fault with the replacement cell. Run a full discharge-to-hibernate then a full uninterrupted charge to 100%; this forces the BIOS learn cycle to rewrite its reference data against the new cell.
XPS 13 9360 shutting down suddenly at 20–30% charge shown
This happens when the fuel gauge IC hasn't calibrated against the new cell's actual voltage curve. The displayed percentage doesn't match the real state of charge, so the system hits the low-voltage cutoff before the gauge reaches zero. The cell voltage drops below the BMS protection threshold — typically around 6.0V under combined CPU and display load — and the system cuts power without warning. Fix this by completing two to three full discharge-to-hibernate and full-charge cycles so the fuel gauge IC maps the new cell's curve correctly.