Nitecore New i4 4 Channel Universal Charger, for 18650, 16340 etc

This intelligent charger can power up to four batteries at once, automatically detecting Li-ion, Ni-MH, and Ni-Cd types and selecting the appropriate charging mode (CC, CV, or trickle charge). Compatible with a wide range of battery sizes including 18650, AA, AAA, C, D, and more.