About this replacement
Metabo 6.25485 Cordless Drill — 7.2V Li-ion Replacement Battery
This is a 7.2V 1100mAh Li-ion replacement battery for the Metabo 6.25485 cordless drill. It matches the original cell voltage and form factor, fitting directly into the tool's battery bay. Capacity is rated at 7.92Wh.
- 6.25485 platform fit: The 6.25485 series runs on a 7.2V rail with a specific connector pinout and BMS handshake. This replacement matches that voltage rail exactly — a mismatch triggers a fault state on the charger before the first cycle completes.
- Bench tested on actual hardware: We ran this pack through charge-discharge cycles on a 7.2V Metabo-compatible platform. The BMS correctly reported state-of-charge across the full range and did not trigger false overcurrent cutoffs during simulated trigger-pull inrush loads.
- Motor inrush conditioning: On first use, run the drill at half load for two cycles before applying full torque. This lets the BMS profile the motor's inrush current draw and set accurate overcurrent protection thresholds before you push the tool hard.
BMS cutoff on motor-start inrush surge in the 6.25485
At trigger pull, a brushed motor draws three to five times its running current for the first few milliseconds. On a 7.2V pack with a conservative BMS, that spike can cross the overcurrent threshold and trip the protection circuit before the drill reaches full speed. This is more likely on a cold pack or one that has been sitting at low charge. Warm the battery to room temperature before use and keep the charge above 30% to reduce internal resistance and keep the inrush spike within BMS limits.
Charger not recognising the new pack after storage
Li-ion cells shipped or stored for extended periods can drop below the charger's minimum acceptance voltage — typically around 2.5V per cell. When the pack sits below that threshold, the charger sees it as a fault condition and refuses to begin a charge cycle. Some Metabo 7.2V chargers have a recovery or "boost" mode that applies a trickle current to bring cells back above the acceptance floor. If the charger shows a fault immediately on a new pack, leave it connected for 10–15 minutes in recovery mode; if the charge indicator does not shift, check cell voltage with a multimeter — each cell should read above 2.5V to accept a normal charge.