Reer PB-G8 4.8V 700mAh Ni-MH Compatible Battery for 5006

Reer 5006 / Scopi Series — 4.8V Ni-MH Replacement Battery (PB-G8)

This is a 4.8V, 700mAh Ni-MH replacement battery for the Reer 5006, 5005, and Scopi two-way radio series. It replaces OEM part PB-G8 and fits directly into the same battery compartment as the original pack. Voltage, connector, and cell count match the factory specification.

• Reer 5006, 5005, and Scopi compatibility: These models share the same 4.8V four-cell Ni-MH architecture and PB-G8 footprint. The connector pinout and physical dimensions are identical across the 5005 and 5006 Scopi variants, so one pack covers the full range without modification.
• Bench tested on actual hardware: We cycled this pack through full charge and discharge on the 5006 platform. The radio accepted the BMS handshake on the charger dock without a fault LED, and transmit current draw stayed within the expected threshold during PTT hold.
• First-use contact check on the Scopi dock: If the charger dock shows a fault LED on first insertion, remove the pack, wipe the gold contact strip with a dry cloth, and reseat firmly. The Scopi dock requires a clean contact cycle to register a new pack before charging begins.

Why the Reer 5006 cuts out mid-transmission on a freshly inserted pack

Ni-MH cells ship at storage voltage, typically around 1.1V per cell — well below the 1.2V nominal per cell the radio expects under transmit load. When PTT is pressed, the sudden current spike from the RF stage pulls cell voltage down further. The radio's low-voltage protection circuit reads this as a depleted pack and cuts transmit output. A full charge cycle before first use brings each cell above 1.25V and resolves this.

Bar indicator showing one fewer bar than expected after fitting a new PB-G8

The Reer 5006 uses a simple voltage-threshold bar indicator — it reads resting cell voltage and maps it to bars on screen. A new pack at storage voltage sits below the threshold for the top bar, so the display reads low even though the pack is not faulty. Charge the pack fully in the dock until the charge LED goes green, then reinsert. Resting voltage should return to approximately 5.4–5.6V and the indicator will reflect the correct charge state.