The Nitecore UM10 is a universal smart charger compatible with almost all cylindrical rechargeable batteries, you don't need to have different types of chargers anymore.
18650 3000 mah - 35A - By MXJO
18650-25R 2500mAh 20A - By Samsung
20700 3000 mah 40A - By iJoy
20700B 4000mah Battery - By Sanyo