1X 21700 Battery Charger DIY Power Bank Box Fast Charging NE For 8PCS 21700 K7C5 - Walmart.com
Amazon.com: Nitecore UMS2 Intelligent USB Dual-Slot Quick Battery Charger for Li-Ion/Ni-MH/Ni-Cd/IMR 16340 14500 18650 21700 20700 AA AAA and More Batteries, with LumenTac Battery Organizer : Electronics
SPERAS 21700 dual-slot Type C-USB battery charger – Speras Light
Nitecore Intelligent 21700 Battery System with Lantern and Charger (80 – PhotonLight.com, Inc
Amazon.com: Nitecore UMS2 USB Universal 2-Port Speedy Smart Battery Charger for Li-Ion/Ni-MH/Ni-Cd/IMR 26650 22650 21700 20700 18650 18490 18350 17670 17500 17335 16340 RCR123 14500 10440 AA AAA AAAA C D Batterie : Electronics
NITECORE UI2 2 slot USB Battery Charger for 21700, 18650 etc
Amazon.com: Protected 21700 Charger XTAR New X2 3.7V 2 Bay Universal Battery Charger Protected 20700 Fast Charger with LCD Display for 18650 14500 26650 1.2V AA AAA Battery Max 2A with AC