About this replacement
Paslode IM350ct / IM325 Series — 6V Ni-MH Replacement Battery (BCPAS-404717)
This is a 6V 2100mAh Ni-MH battery for Paslode cordless nail guns including the IM350ct, IM325, IM250A, and IM200F18. It matches the OEM voltage rail and cell count that Paslode's onboard electronics expect. Capacity is sourced from our product data — 2100mAh, 12.6Wh.
- IM350ct / IM325 platform fit: These models share a common 6V Ni-MH pack format, connector pinout, and BMS handshake. Swapping between IM350ct and IM325 housings uses the same battery because the charge management and overcurrent thresholds are set identically across the platform.
- Bench tested on actual hardware: We cycled this pack through repeated fastening sequences and monitored the BMS response during trigger-pull inrush events. The overcurrent threshold held correctly without nuisance trips under normal nail-gun firing loads.
- Nail gun firing cycle care: After extended idle storage, run five to ten slow, deliberate firing cycles at normal load before pushing rapid-fire sequences. Ni-MH cells that have partially self-discharged during storage need a few discharge-recharge cycles to restabilise internal resistance before the pack handles high-frequency trigger bursts without voltage sag.
Why the IM350ct cuts out mid-sequence on rapid-fire shots
Rapid-fire nailing pulls current in sharp spikes — each trigger pull demands a burst of power to drive the gas ignition and piston cycle. Ni-MH cells with elevated internal resistance from age or storage drop voltage sharply during that spike, and the BMS interprets the dip as an overcurrent or undervoltage fault. The tool shuts down to protect the pack. Reconditioning the battery with two to three full discharge-recharge cycles lowers internal resistance and widens the voltage margin the BMS works within.
Charger not recognising the pack after it's been sitting unused
Ni-MH cells self-discharge at roughly 15–20% per month, so a pack stored for several months can drop below the voltage floor the Paslode charger uses to confirm a healthy cell. The charger sees a voltage below its acceptance threshold and either blinks an error or does nothing. Connect the pack to the charger and leave it for 10–15 minutes — most Paslode chargers apply a trickle pre-charge to lift cells above the acceptance threshold before switching to full charge mode. If the charger still rejects the pack, check that the terminal contacts are clean and reading above 4.5V with a multimeter before concluding the pack is unrecoverable.