Charge two batteries at the same time with the all-new Fenix ARE-D2 Dual channel smart battery charger. If you are a flashaholic, you understand how important it is to have batteries ready to go at a moment's notice. Compatible with all Fenix batteries, the Fenix ARE-D2 will charge your batteries quickly within a few hours. As you charge your cells, you will be able to see real-time information, including the current charge level. Some of the most popular compatible batteries include rechargeable 18650 and 16340 batteries.