I am using a Nitecore D2 charger. It really gets a workout. I rotate 4 sets of 2 18650 cells and a few AA and AAA rechargeable types as well. I wish I had found this charger a long time ago. It has saved me a lot of time just from not having to switch out chargers. It works as advertised. Ii is worth the money if you are an ADV person or have multiple mods that you need to keep fresh cell for. I will probably be picking the Nitecore D4 charger so that I can charge more cells at once.
