PR-2286 Team TeCom-PS FreeNet 3.7V Replacement Battery

Team TeCom-PS FreeNet / PMR 446 — 3.7V Li-ion Replacement Battery (PR-2286)

This is a 3.7V, 1100mAh Li-ion replacement battery for the Team TeCom-PS FreeNet, TeCom-PS PMR 446, TeCom-PS UHF-COM 450–470 MHz, and TeCom-PS VHF-COM 136–174 MHz portable radios. It replaces OEM part PR-2286 and slots into the same battery compartment without modification. Capacity is 1100mAh (4.07Wh), matching the original pack specification.

• TeCom-PS platform fit: The FreeNet, PMR 446, UHF-COM, and VHF-COM variants share the same 3.7V single-cell architecture and battery form factor. All four models use the same connector pinout and BMS communication protocol, so one pack covers the full TeCom-PS range. Physical dimensions are 53.00 × 33.90 × 5.70mm — verify your existing pack matches before ordering.
• Bench tested on actual hardware: We cycled this pack through charge and discharge on the bench and confirmed the BMS trips correctly on overcurrent and recovers cleanly after load removal. The protection circuit held cell voltage within the expected 3.0–4.2V window throughout.
• First insertion into the charger dock: If the charger shows a fault or blink pattern on first insertion, remove the pack, wipe the contact points with a dry cloth, and reseat firmly. The TeCom-PS dock requires a clean contact cycle to accept the BMS handshake from a new pack before it begins charging.

Why the TeCom-PS cuts out mid-transmission on a freshly charged pack

Pressing PTT draws a sharp current spike as the radio switches into transmit mode. On a single-cell 3.7V pack, that spike can briefly drag cell voltage below the BMS low-voltage cutoff threshold, triggering a protective shutdown even when the pack reads full. This is more likely when the cell is cold or when contacts have surface oxidation adding resistance. Clean the battery contacts, let the radio warm to room temperature, and confirm the charger brought the pack to a full 4.2V before the shift.

Bar indicator showing one fewer bar than expected after charging

New Li-ion cells ship at a storage voltage — typically around 3.6–3.8V — not at a full 4.2V charge. The TeCom-PS radio reads voltage thresholds to display its bar indicator, so a pack at storage voltage will show one bar short of full even though the cell is not depleted. Run one complete charge cycle in the dock until the charger LED goes solid green, then power on the radio. The indicator should then reflect the correct state of charge.