The Evolution R18RCH-Li2 Double Dock Rapid Charger is a twin port, ultra quick lithium-ion battery charger that is designed to maximise your productivity and keep you working all day long. Packed with two internal charging circuits, the charger allows two batteries at the same time while maintaining the rapid charge times of the single dock charger. It will fully charge a 2.0Ah battery in just 30 minutes, and a 5.0Ah battery in just 60 minutes. Compatible with all Evolution EXT li-ion batteries, this charger uses intelligent battery management to monitor cell temperature and health for extended battery life. Lightweight and compact design with a long cable makes it easy to transport use around site. Voltage: 18V Battery Chemistry: Li-ion