The larger universal NITECORE i4 Compact 4x Battery Charger. Charge up to four flashlight batteries at the same time with this charging station. Automatic charger will fit any rechargeable Nitecore battery type, including the 18650, 14500 (AA), RCR123, etc. Will charge any type of rechargeable battery and automatically detects if it's Li-ion, Ni-MH, or Ni-Cad. Plugs into any US standard wall. We also include a free DC charger for use with your car's cigarette lighter. It's a fully automatic charger with LED lights indicating when it's done charging whatever battery you give it. *Not for use with airsoft AEG batteries.