About this replacement
Rainin EDP Plus / EDP1 — 2.4V Ni-MH Replacement Battery (RA 6100-080)
This is a 2.4V 500mAh Ni-MH replacement battery for the Rainin EDP Plus and EDP1 electronic pipettes. It fits the OEM part numbers RA 6100-080 and RA 17003232. The battery powers the pipette's drive motor and electronic control system across liquid handling and sample preparation workflows.
- EDP Plus, EDP1, and Pipette EDP compatibility: All three models share the same 2.4V Ni-MH cell format, connector pinout, and BMS handshake. The same battery services the full EDP line without modification.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the EDP platform. The BMS accepted the cell, completed its verification sequence, and stepped through charge stages without fault flags.
- Post-swap self-test protocol: After fitting this battery, allow the pipette to complete its full power-on self-test without interruption. The EDP platform runs a BMS verification check at startup — interrupting it before completion stores a false battery fault that persists until the next clean reboot.
EDP Plus alarming low battery immediately after a confirmed full charge
The EDP Plus BMS compares the incoming cell's resting voltage against a threshold calibrated to a conditioned OEM cell. A fresh Ni-MH cell out of storage typically reads lower than that threshold even after a full charge cycle. The BMS treats this as an underperforming battery and raises the alarm. Run one complete charge-discharge cycle through the device charger — after that cycle, the resting voltage climbs to approximately 2.4V and the alarm clears.
Pipette will not power on after battery replacement
Ni-MH cells self-discharge in storage and can drop below the EDP's BMS recovery threshold — typically below 1.8V total — at which point the controller refuses to boot to protect downstream electronics. Place the battery in the charger for a full uninterrupted charge cycle before installing it. If the device still does not boot, check the charger output at the contacts: it should read between 2.8V and 3.0V DC under no load. A reading outside that range points to the charger, not the cell.