The Detachable Battery Pack, BTR-08is used exclusively for Fujikura Arc Fusion Splicer, FSM-60S, FSM-60R, FSM-18S, and FSM-18R.
The battery is rechargeable, and to be charged by ADC-13, AC adaptor and DCC-14, charge cord.

SPECIFICATIONS
Model:  BTR-08
Type:  NiMH (Nickel Metal Hydride)
Output voltage:  13.2V
Battery capacity:  4.0Ah
Battery charger: Exclusive Battery charger, ADC-13 Battery charge cord, DCC-14
Expected battery cycle life: Max. 500 cycles
Battery capacity indicator: Available
Operating condition: -10 to +50 degree C / Non dew
Dimension, Weight: 120W x 117D x 38H (mm), 0.77kg
Use for: FSM-60S, FSM-60R, FSM-18S, FSM-18R