Husqvarna 120i Operator's Manual page 27

Approved batteries for the product
Battery
Type
Battery capacity, Ah
Voltage, V
Weight, lb/kg
Approved battery chargers for the product
Battery charger
Mains voltage, V
Frequency, Hz
Power, W
Output Voltage, V d.c./ Amps, A
1259 - 001 - 11.07.2019
4.2 (VTC4)
36
2.6/1.2
BLi20
Lithium-ion
4 (HD2)
36.5
2.6/1.2
QC80
100-240
50-60
100
36/2
27