The 4.2Ah Li-ion battery packs are capable of approximately 27% more working capacity per charge than the previous model, meaning you can get the job done faster. It has a usable charge time of 50 minutes.
Panasonic’s 14.4V 4.2Ah Li-ion battery cell delivers high power and long lasting battery capacity. The 14.4V Li-ion batteries are durable and has great working capacity per charge.