Mettler Toledo Cranemate GP380AFH6S 7.2V Replacement Battery

Mettler Toledo Cranemate — 7.2V Ni-MH Replacement Battery (GP380AFH6S)

This 7.2V 3500mAh Ni-MH pack replaces the original battery in the Mettler Toledo Cranemate portable crane scale. The Cranemate is a suspended-load weighing instrument used in warehouses, manufacturing lines, and logistics operations. Voltage and cell count match the OEM specification exactly — no adapter or modification needed.

• Cranemate platform fit: The Cranemate draws a stable, moderate continuous current during load measurement, with brief spikes when the display backlight activates or data is transmitted. This pack's BMS is rated to handle those transient draws without tripping into protection mode mid-weigh cycle.
• Bench tested on actual hardware: We cycled this pack under simulated crane scale load profiles — sustained sensor active states, backlight draw, and wireless data transmission. The BMS held within the expected voltage band throughout and did not enter overcurrent cutoff during any test phase.
• First-use calibration cycle: After installing this pack, run a full calibration cycle through the Cranemate's instrument menu before field deployment. The instrument maps battery state during calibration, and skipping this step causes premature low-battery warnings during your first measurement session in the field.

BMS cutoff when the Cranemate initialises its load cell at power-up

When the Cranemate powers on, it runs a load cell initialisation sequence that pulls a short current spike — typically 800mA to 1.2A for one to two seconds. On a degraded or deeply discharged original pack, this spike can trip the BMS into protection mode before the display even lights up. This replacement pack's BMS threshold is set above that initialisation peak, so the instrument completes startup without a false cutoff. If the scale still cuts out at power-up after fitting a new pack, check that the pack voltage reads at least 7.0V before inserting — a partially discharged Ni-MH cell cluster can still trigger low-voltage protection at that spike.

Scale display shows inconsistent battery percentage after fitting a new pack

The Cranemate estimates battery state using a voltage-threshold method — it maps the current cell voltage against a fixed discharge curve. A fresh Ni-MH pack has a slightly different resting voltage profile than a worn original, so the instrument's percentage indicator will read erratically for the first few charge-discharge cycles. This is not a fault with the pack. Run two full charge and discharge cycles, then perform the instrument calibration sequence to allow the scale to recalibrate its voltage thresholds to the new cells. After that, the percentage readout stabilises to within ±5% of actual state of charge.