Optrel E3000X 18 hour battery PAPR system replacement 14.8v / 2.25Ah li-ion battery, capable of delivering up to 18 hours operating time, snaps into blower unit for quick and easy replacement or charging.
 
The E3000X li-ion batteries offer extremely lightweight compared to traditional NiMH batteries, with exceptional power storage capacity for longer run times.
 
Battery Li-Ion rechargeable:  14.8V / 5.0Ah
Charging time: 8 hours
Weight: 565 grams.