Gilson F807007 Pipetman M Replacement Battery 3.7V 400mAh

Gilson F81052 PIPETMAN M P8X100M — 3.7V Li-Polymer Replacement Battery (F807007)

This 3.7V 400mAh Li-Polymer cell replaces the OEM battery in the Gilson PIPETMAN M P8X100M eight-channel digital pipette. It powers the electronic control board, display, and motor drive functions that govern accurate 10–100µL dispensing. Capacity matches the original F807007 specification at 1.48Wh.

• PIPETMAN M P8X100M platform fit: The P8X100M uses a compact Li-Polymer cell with a three-wire connector that feeds both the main control board and the BMS handshake line. The physical envelope — 51.00 × 16.80 × 6.70mm — is tight inside the grip housing, and only cells built to this exact footprint seat correctly without stressing the flex connector.
• Bench tested on actual hardware: We cycled this cell through charge and load profiling matched to the P8X100M's motor-drive draw pattern. The BMS accepted the cell without fault codes on the first connection, and the charge IC brought it to full charge in the expected window without triggering the device's low-cell alarm.
• Post-swap self-test protocol: After installing this cell, let the pipette complete its full power-on self-test without pressing any buttons or interrupting the sequence. The P8X100M runs a BMS verification pass at startup — cutting power mid-sequence locks in a false battery fault that will not clear until the next clean reboot from rest.

PIPETMAN M P8X100M not completing boot sequence on a new cell

The P8X100M runs a startup self-test that checks cell voltage against a stored OEM threshold before it will finish booting. A new Li-Polymer cell that has been in storage can present a resting voltage below that threshold — typically anything under approximately 3.5V will stall or abort the boot. The device is not faulty; it is rejecting what the BMS reads as an under-voltage condition. Charge the replacement cell fully before installation, confirming the charger reports 4.2V at termination, then refit and power on.

Low-battery alarm triggers immediately after a confirmed full charge

This happens because the PIPETMAN M's BMS compares cell impedance against a learned profile built on the original chemistry — a new cell with no cycles yet presents higher internal resistance than a broken-in OEM cell, which the BMS reads as low state-of-charge even when voltage is correct. Run one complete charge-discharge-charge cycle before clinical use. After that cycle, the BMS recalculates its reference and the alarm clears. Do not use the pipette in a clinical workflow until this conditioning cycle is complete.