Milwaukee 48-11-0080 9.6V Ni-MH Drill Replacement Battery

Milwaukee 0210-1 Series — 9.6V Ni-MH Replacement Battery (48-11-0080)

This is a 9.6V, 2100mAh Ni-MH battery built to replace the OEM pack in Milwaukee's 0210-1 compact drill/driver and its close variants. It fits the 0210-1, 0212-1, 0216-1, and 0217-1 platforms, along with seven additional models sharing the same connector and voltage rail. Capacity is 2100mAh (20.16Wh) — taken from the product data, not estimated.

• Cross-model fit on the 0210 platform: These drills share the same 9.6V battery bay geometry, slide-in connector, and BMS handshake protocol. The pack seats and locks identically across the platform — no adapter needed.
• Bench tested on actual hardware: We ran this pack through charge and discharge cycles on a 0210-1 body. The BMS held cutoff at the correct floor voltage and the charger accepted the pack without error codes across multiple sessions.
• Motor inrush conditioning on first use: Run the drill at half load for the first two cycles before pushing full torque. This lets the BMS log the motor's inrush current draw and calibrate its overcurrent threshold before you hit the trigger hard.

BMS overcurrent trip on trigger-pull inrush in the 0210-1

The 0210-1 motor draws a sharp current spike the instant the trigger engages — this is normal inrush behaviour on a brushed motor. On a new or cold pack, the BMS hasn't yet profiled that spike and may read it as a fault, cutting power before the bit starts turning. Ni-MH cells also show higher internal resistance when cold, which amplifies the voltage sag during inrush and makes the BMS more likely to trip. If the drill dies immediately on trigger pull, warm the pack to room temperature and cycle it twice at half load before attempting full-speed starts.

Charger not recognising the pack after extended storage

Ni-MH cells self-discharge during storage — at roughly 20–30% per month under typical conditions. If the pack sits long enough, cells can drop below the charger's minimum acceptance voltage, and the charger simply won't initiate a charge cycle. This shows up as no indicator light or an immediate fault light when you dock the pack. To recover it, apply a short trickle charge using a compatible Ni-MH charger set to its lowest current — enough to bring cell voltage above the acceptance threshold. Once the charger recognises the pack, run a full charge before use; check that cell voltage reads above 1.0V per cell (10.0V total) at the end of the cycle.