About this replacement
HYT TC-368 / TC-368S / TC-268S — 7.2V Ni-MH Replacement Battery (BH1102)
This is a 7.2V, 1800mAh Ni-MH replacement battery for the HYT TC-368, TC-368S, and TC-268S portable two-way radios. It replaces OEM part numbers BH1102, BH-4501, BH-4576, and TB-86. Drop it into the same bay as the original pack — the connector and latch positions are unchanged across this radio family.
- TC-368 / TC-368S / TC-268S platform fit: All three models share the same battery bay geometry, voltage rail, and contact arrangement. The 7.2V nominal spec is common to the entire series, so one pack covers all three variants without any adapter or modification.
- Bench tested on actual hardware: We cycled this pack through charge and discharge on the TC-368 platform. The BMS held the charge curve correctly and the radio's bar indicator stepped up as expected across voltage thresholds. No false cutoff events were recorded under simulated PTT load.
- Contact strip condition on first dock insertion: If the charger shows a fault LED on first insertion, remove the pack and wipe the gold contact strip with a dry cloth before reseating. The HYT dock requires a clean contact surface to complete the BMS handshake before it will begin the charge cycle.
TC-368 cutting out mid-transmission on a freshly inserted pack
A new Ni-MH pack ships at storage voltage — typically 6.8V to 7.0V, below the radio's full operating range. When PTT is pressed, transmit current spikes sharply and the BMS may interpret that draw as an overcurrent event if the cell voltage hasn't recovered from storage. This trips a brief protection cutoff, which the radio reads as a battery fault. Run one full charge cycle through the HYT dock before first use in the field to bring cells to nominal 7.2V and let the BMS establish its baseline.
Bar indicator shows one fewer bar than expected after a full charge
The TC-368 uses voltage-threshold steps to drive the bar indicator — there is no fuel gauge chip. A new cell's resting voltage immediately after charge can read slightly lower than a broken-in cell at the same state of charge, because the electrochemical structure hasn't fully conditioned yet. After two or three full charge-discharge cycles, the resting voltage stabilises and the bar count aligns with what the original pack showed. If the indicator still reads low after three cycles, check the dock contacts and confirm charge termination voltage reached 8.6V–8.7V.