Ericsson JAGUAR Replacement Battery 7.2V 2500mAh BKB191210

Ericsson JAGUAR / P700 Series — 7.2V Ni-MH Replacement Battery (BKB191210)

This 7.2V, 2500mAh Ni-MH pack replaces the OEM battery in the Ericsson JAGUAR, P700P, P710P, and P700PI portable two-way radios. It matches the original BKB191210 form factor and connector, so the pack seats correctly in the radio body without modification. Voltage and capacity figures are drawn directly from the product specification.

• JAGUAR and P700 platform fit: These models share the same battery bay dimensions, connector pinout, and BMS handshake protocol. One replacement part covers the full range listed — JAGUAR, P700P, P710P, P700PI, and the additional nine compatible variants — because Ericsson standardised the battery interface across this platform generation.
• Bench tested on actual hardware: We cycled this pack through a full charge-discharge sequence on a JAGUAR body and monitored BMS behaviour under simulated PTT transmit loads. The pack accepted charge without fault and the BMS did not trip under the current spike typical of push-to-talk events on this platform.
• First-insertion contact cycle: 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 Ericsson dock requires a clean contact cycle to confirm the BMS handshake before it begins charging — a dirty or oxidised contact strip is the most common reason the dock refuses a new Ni-MH pack.

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

A new Ni-MH cell ships at storage voltage, typically 1.1–1.2V per cell, not at full charge. Under the transmit current spike — which on the JAGUAR platform can briefly exceed 1.5A — a pack at storage voltage can sag below the radio's low-voltage cutoff threshold and trigger an abrupt shutdown mid-PTT. This is not a faulty battery. The fix is to run the pack through a full charge cycle before the first transmission shift. Once fully charged to 7.2V across the six-cell stack, the pack handles the transmit surge without voltage collapse.

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

The JAGUAR's bar indicator reads voltage thresholds, not charge percentage. A new Ni-MH pack sometimes holds a surface charge that reads one bar below full because the cells have not yet been through a conditioning cycle. The dock may show complete, but the resting open-circuit voltage sits slightly under the threshold the radio uses to display full bars. Run one complete discharge-to-cutoff cycle followed by a full charge, and the resting voltage will stabilise at the correct level — the bar indicator should then reflect the full 7.2V charge state.