FENIX ARE-A4 Four Channel Battery Smart Charger for 16340, 18650 Batteries and More with 4x Premium 3500mAh Fenix Rechargeable 18650 Batteries - Walmart.com
RTR Four-Slot 18650 Battery Charger With Short Circuit, Overcurrent And Overvoltage Protection - Walmart.com
18650 Battery Flat Top
Rechargeable 18650 Li-Ion 3.7V 2500mAh Batteries Lot + Case Box for Flashlight Headlight Bicycle Light-2 Pack - Walmart.com
Anyone tried these batteries out? Hyper Tough from Walmart, $5.95 for a set of 2... : r/flashlight