OVERVIEW RIDGID introduces the 18-Volt Lithium-Ion Dual Port Sequential Charger Kit with (2) 4.0 Ah Batteries and (2) 2.0 Ah Batteries. This charger gives you the ability to charge any two RIDGID 18-Volt batteries sequentially. Save time in between recharges on the job site with 2 charge ports compared to one. Pair that with the four included Lithium-Ion Batteries and you are set for any job site. Smart charging evaluates the battery condition and provides status with easy-to-read icons....