About this replacement
Icom IC-F3001 / IC-F4001 Series — 7.2V Ni-MH Replacement Battery (BP-264)
This is a 7.2V, 1800mAh nickel-metal hydride replacement for the Icom BP-264 battery pack. It fits the IC-F3001, IC-F4001, IC-F3003, IC-F4003, and 18 additional Icom land mobile radio models sharing the same form factor and contact layout. Swap it into any compatible dock or field charger without modification.
- IC-F3001 / IC-F4001 platform fit: These models share the BP-264 footprint, gold contact strip spacing, and 7.2V nominal rail. The BMS handshake threshold is identical across the series, so one pack covers both VHF and UHF variants without any adapter or firmware difference.
- Bench tested on actual hardware: We ran this pack through charge and transmit cycles on an IC-F3001 dock. The BMS accepted the charge handshake on first insertion, held voltage through sustained PTT draw, and tripped overcurrent protection correctly at the expected threshold — no false lockouts observed.
- First insertion contact cycle: If the charger dock shows a fault LED on first seating, remove the pack, wipe the gold contact strip with a dry cloth, and reseat firmly. The Icom dock requires a clean contact surface to complete the BMS handshake before the charge cycle begins — a single wipe clears most first-insertion faults.
IC-F3001 charger dock fault LED after BP-264 swap
The Icom BC-series dock reads the new pack's resting voltage before it starts charging. A replacement Ni-MH cell ships at storage voltage — typically 1.0–1.1V per cell, putting the pack around 6.0–6.6V. Some docks flag this as a fault rather than accepting a conditioning charge. Removing the pack, waiting 10 seconds, and reinserting it gives the dock a fresh voltage sample, which usually clears the fault LED. If the fault persists, place the pack in a compatible field charger first to bring it above 6.8V, then transfer it to the desk dock.
Bar indicator reads one fewer bar than expected on a new pack
The IC-F3001 uses a voltage-threshold bar indicator, not a fuel gauge chip. A new Ni-MH pack at storage voltage sits below the threshold for the top bar, so the display shows one or two bars even with a full cell inside. This is not a capacity defect — the cell simply hasn't reached its nominal 7.2V resting point yet. Run one full charge cycle in the dock and the bar indicator will read correctly at 7.2–7.5V charge termination.