Dell Inspiron 1525 Replacement Battery GP952 11.1V 6600mAh

Dell Inspiron 1525 / 1526 / 1545 / 1546 — 11.1V Li-ion Replacement Battery (GP952 / GW240 / X284G)

This is an 11.1V 6600mAh (73.26Wh) Li-ion battery for Dell Inspiron 1525, 1526, 1545, and 1546 laptops. It replaces a wide range of Dell OEM part numbers including GP952, GW240, X284G, RN873, and HP297. If your original battery no longer holds a charge or your laptop won't run unplugged, this is the direct cell replacement.

• Inspiron 1525 / 1526 / 1545 / 1546 fitment: These four models share the same 11.1V battery bay, connector pinout, and BMS communication protocol. Dell used the same battery platform across this generation, which is why one cell covers all four variants.
• Bench tested on actual hardware: We ran this cell on an Inspiron 1545 and monitored the BMS handshake during charge and discharge cycles. The fuel gauge IC communicated correctly, charge current tapered as expected near full capacity, and the BMS did not trigger any spurious cutoff events.
• Post-install calibration on the Inspiron platform: After fitting this cell, run the laptop down to hibernate cutoff on battery power alone, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after swapping any new cell into this platform.

BIOS reporting poor battery health immediately after fitting a new cell

The Inspiron BIOS reads health data from the battery's EEPROM, not from live cell measurements. When a new cell is installed, the EEPROM contains factory default values that haven't been written against actual charge cycles yet. The BIOS interprets this as a degraded or unknown battery state. One full discharge-to-hibernate followed by an uninterrupted charge to 100% gives the fuel gauge IC enough data to write accurate cycle counts and health figures back to the EEPROM, and the BIOS warning clears on the next boot.

Laptop shutting down at 20–30% charge shown on screen

This happens when the fuel gauge IC hasn't been calibrated against the new cell's actual voltage curve. The gauge predicts 20–30% remaining based on the old cell's data, but the new cell hits its low-voltage cliff at a different point and the system shuts down to protect the hardware. It's a calibration gap, not a faulty battery. Run two full discharge-to-hibernate and full recharge cycles to let the fuel gauge IC remap the voltage curve against the new cell. After calibration, the shutoff point should align with the reading on screen, dropping no earlier than 5–7%.