Anyone tried these batteries out? Hyper Tough from Walmart, $5.95 for a set of 2... : r/flashlight
Ultrafire UF18650 3.7 V Li-ion Rechargeable Battery, Red
Loose lithium ion batteries that cause fire hazard being sold on major websites
18650 Battery
100% New Original 18650 3.7 V 4200 Mah 18650 Lithium Rechargeable Battery For Evrefire Flashlight Batteries +charger - Rechargeable Batteries - AliExpress
2 Slot 18650 Battery Charger - 2 Slot Works on Flat Tops, Button Tops, – Battery World