About this replacement
Dell XPS M1530 / M1500 — 11.1V Li-ion Replacement Battery (312-0660)
This 11.1V 4400mAh (48.84Wh) lithium-ion battery replaces the original cell in the Dell XPS M1530 and XPS M1500 notebooks. It matches the OEM voltage rail and connector pinout, so the BIOS communicates with it the same way it did with the factory pack. Capacity figures are from the product data, not estimated from secondary sources.
- XPS M1530 and M1500 compatibility: Both models share the same battery bay dimensions, connector layout, and BMS handshake protocol. The OEM part numbers 312-0660, 312-0662, 312-0663, RU030, XT828, RN894, and GP975 all cross-reference to this cell configuration.
- Bench tested on actual hardware: We cycled this cell on an XPS M1530 under mixed CPU and display load. The BMS held the voltage above the cutoff threshold at full draw, and the BIOS recognised the pack without a hardware fault flag on first boot.
- Post-install calibration on XPS M1530: After fitting this battery, run one full discharge to hibernate-cutoff, then charge uninterrupted to 100% without interruption. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after a cell swap.
BIOS reporting battery health as poor after fitting a new cell
The XPS M1530 BIOS reads health data from EEPROM registers stored in the battery's protection circuit. When a new cell arrives, those registers contain factory defaults that don't match the laptop's charge history. The BIOS interprets this mismatch as a degraded pack and flags it immediately. Running the full discharge-to-hibernate then uninterrupted charge-to-100% sequence rewrites the learn cycle and clears the warning.
XPS M1530 shutting down at 20–30% charge shown on screen
This happens when the fuel gauge IC hasn't yet calibrated against the new cell's actual voltage curve. The OS reads a percentage from cached data that doesn't reflect where the real voltage cliff sits on this chemistry. Under combined CPU and display load, the cell voltage drops below the BMS cutoff threshold before the gauge reaches 0%, causing an abrupt shutdown. Complete two full discharge-charge cycles and the gauge IC will remap its curve to the new cell — shutdowns at false percentages stop after that.