Tait T1000 Replacement Battery 7.2V 2000mAh BZ1032

Tait T1000 / T3000 Series — 7.2V Ni-MH Replacement Battery (BZ1032)

This is a 7.2V, 2000mAh Ni-MH battery for the Tait T1000, T3000, T3000-1000, and T3000-1002 portable two-way radios. It replaces OEM part numbers BZ1032, TT31C1-A, and HC-349M-1032M. Drop it in place of a worn pack on any of these models — voltage, connector, and BMS handshake all match.

• T1000 and T3000 platform fit: These four models share the same battery bay geometry, 7.2V rail, and contact pinout. The BMS on each variant expects the same charge-acceptance handshake, so one pack covers the entire T3000 sub-family without adapter or modification.
• Bench tested on actual hardware: We cycled this pack through full charge and load discharge on the T3000 platform. The BMS accepted charge on first insertion, held voltage above the radio's low-battery threshold through sustained transmit load, and tripped overcurrent protection cleanly at the expected draw ceiling.
• First-insertion contact cycle on the Tait dock: If the charger dock shows a fault LED on first insertion, remove the battery, wipe the gold contact strip with a dry cloth, and reseat firmly. The Tait dock requires a clean contact surface to complete the BMS handshake before it will begin charging — a partial connection on the first seat is the most common cause of false fault indications.

Why the T1000 cuts out mid-transmission on a freshly inserted Ni-MH pack

Ni-MH cells ship at storage charge — typically around 60–70% state of charge, which sits near the bottom of the T1000's acceptable voltage window under transmit load. When PTT is pressed, the radio draws a short high-current spike to key up the RF stage. If the cell voltage sags below the radio's cutoff threshold during that spike, the radio drops transmission or reboots. This is not a faulty battery — it is a storage-voltage cell under a transmit-surge load. Run the pack through one full charge on the Tait dock before field use and the cutout behaviour stops.

Bar indicator showing one fewer bar than expected after a full charge cycle

The T1000 and T3000 use a simple voltage-threshold bar display — each bar corresponds to a voltage band, not a capacity percentage. A new Ni-MH pack sometimes reads one bar low immediately after its first charge because Ni-MH cells need one or two full charge-discharge cycles to reach peak capacity and stable resting voltage. The display will catch up after the first real-world discharge and recharge. If the bar count is still short after two full cycles, check resting voltage with a multimeter — a healthy fully charged 7.2V Ni-MH pack should read between 8.4V and 8.6V at rest.