The Honeywell RESON8 bell box uses a rechargeable NiMH 6V battery pack available in two variations. The extended life 250mAh model offering a 30% longer life backup duration and 3-4yrs lifespan.

Type: Varta button cells

P/N: GP320BVH5A6 / GP250BVH5A6

Finish: Green wrapped

Cable length: 100mm