About this replacement
Icom IC-F3001 / IC-3101 Series — 7.4V Li-ion Replacement Battery (BP-265)
This 7.4V Li-ion battery carries 2200mAh (16.28Wh) and replaces the Icom BP-265 / BP-265LI pack. It fits the IC-3101, IC-4101, IC-F3001, IC-F3002, and 16 additional Icom models on the same platform. Same connector housing, same BMS handshake protocol as the original pack.
- IC-F3001 / IC-3101 platform fit: These models share a common 7.4V rail, identical battery bay geometry, and the same BMS communication line. One pack covers the full series because Icom standardised the BP-265 footprint across this transceiver family.
- Bench tested on actual hardware: We ran this pack through transmit-cycle loads on an IC-F3001 dock. The BMS held stable across repeated PTT bursts without overcurrent trip, and the charger dock advanced to green within the normal charge window.
- First insertion on the IC-F3001 dock: If the dock shows a fault LED on first insertion, remove the pack, wipe the gold contact strip with a dry cloth, and reseat firmly. The Icom dock requires a clean contact cycle to complete the BMS handshake before charging begins.
IC-F3001 charger dock fault LED after BP-265 swap
A new BP-265 ships at storage voltage — typically around 3.7V per cell, or roughly 7.4V total. Some Icom dock firmware interprets this as a marginal or depleted pack and throws a fault LED instead of starting a charge cycle. The fix is to clean the gold contacts and reseat the pack. If the fault LED persists, confirm the dock supply voltage at the wall adapter — the BC-193 and BC-197 docks require a stable 12V input to accept a pack at storage voltage.
Bar indicator showing one fewer bar than expected on a new BP-265
The IC-3101 and IC-F3001 read battery level from voltage thresholds, not a fuel gauge chip. A new cell at storage voltage sits below the top threshold, so the radio displays one bar short of full — this is not a fault. Place the pack in the charger dock and run a full charge cycle to 8.4V before use. Once the dock goes green and the pack reaches full charge voltage, the radio will display the correct bar count.