66% more runtime than 3.0Ah battery (BL1830), with no compromise on weight or size
45 minute charge time with either DC18RC or DC18RA chargers.
The 5.0Ah 18v Li-ion battery (BL1850) is compatible with 18v machines if they have a star on the connector plate,
has a yellow plate with a star on or has a yellow connector plate only.