Roberts BPR1 R-Series Rechargeable Battery Pack

Roberts R-Series Rechargeable Battery Pack
Adds portability to the Roberts R1 or R100. Power the R1 or R100 away from the main for up to 12 hours.
The battery pack fits neatly beneath your R1 or R100. Increases the height by only 12 mm.
Can be recharged from empty in approximately 7 hours.
3 battery status indicators: battery charging, battery full, low battery.
Dimensions: H 39 mm x W 226 mm x D 133 mm