About this replacement
Paslode IM350ct / IM325 Series — 6V Ni-MH Replacement Battery (BCPAS-404717)
This is a 6V, 3300mAh Ni-MH battery for the Paslode IM350ct, IM325, IM250A, IM200F18, and over 23 additional Paslode cordless nailer models. It powers the combustion ignition system that fires each nail cycle. The 135.25 x 49.66 x 33.10mm form factor matches the original battery bay dimensions.
- Multi-model nailer fit: The IM350ct, IM325, IM250A, and IM200F18 all run the same 6V ignition rail and share the same battery connector and latch geometry — one battery fits across this tool family without modification.
- Bench tested on actual hardware: We cycled this pack through repeated ignition trigger events, confirming the cells hold voltage under the rapid charge demand of each combustion firing cycle without dropping below the cutoff threshold.
- Nail gun fuel cell sequencing: On first use, run five to ten dry trigger cycles before loading fuel and fasteners — this lets the battery settle at operating voltage and gives the ignition module a consistent baseline before live firing loads hit the cells.
Why the IM350ct misfires or skips ignition mid-job
The IM350ct ignition module draws a sharp current spike each time the combustion chamber fires. Aged Ni-MH cells lose internal capacity and cannot sustain that spike cleanly, so the module gets insufficient voltage and the firing cycle fails to complete. This shows up as a click with no nail drive, or inconsistent depth on consecutive shots. A fresh 3300mAh pack restores the voltage margin the ignition module needs to fire every cycle reliably.
Paslode charger not recognising the battery after long storage
Ni-MH packs stored for several months can self-discharge below the voltage threshold the Paslode charger uses to accept a pack. The charger sees a cell voltage it interprets as a fault and refuses to begin charging. To recover the pack, use a Ni-MH compatible charger with a trickle or reconditioning mode to bring cell voltage up to around 1.0V per cell before placing it in the Paslode charger. Once cells read above that floor, the standard charger will accept the pack and complete a full charge cycle normally.