ENERGIZER L91BP-8 AA 1.5V lithium battery 8-pack
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Replacement 9.6 V 1000 mAh lithium-ion pack for Vertex FT-series two-way radios
This replacement battery fits Vertex FT-10, FT-10R, FT-40, FT-40R, FT-50, FT-50R and VXA-100 two-way radios. It matches part numbers FNB-41 and FNB-42. The pack uses lithium-ion chemistry and delivers 1000mAh at 9.6V. It is built to the same physical dimensions as the original unit.
The battery includes overcharge, over-discharge, over-voltage and short-circuit protection circuits. A fully decoded chip communicates with the radio exactly like the factory pack. Normal use stays within safe temperature limits without active cooling. No noise or power-draw figures are published for this accessory.
After two or three full charge cycles the pack reaches its rated capacity for extended transmit sessions. Protection circuits prevent damage during prolonged high-current draw. The 1000mAh rating supports typical duty cycles but will not last through continuous heavy use without recharging. Buyers needing longer runtimes should consider higher-capacity alternatives.
Measured against everything we stock in Disposable & Rechargeable Batteries, at today’s prices. Recalculated every night.
| Product | |
|---|---|
| Brand name | Cameron Sino |
| Model name | FT-10, FT-10R, FT-40, FT-40R, FT-50, FT-50R, VXA-100 |
| Part number | FNB-41, FNB-42 |
| Power | |
| Battery capacity | 1,000 mAh |
| Battery voltage rating | 9.6 V |
| In the box | |
| Battery pack size | 84 × 67 × 35 |
Slide the pack into the radio until the latch clicks; the step people miss is fully seating the connector so the decoded chip registers with the radio.
Run two or three full charge and discharge cycles when new; afterwards recharge before storage and keep the pack out of environments above 60°C.
The 1000mAh capacity sets the talk time; once depleted the pack must be recharged before further use.
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