21700 Flashlights are the Next-Gen Rechargeable Flashlight
Key Takeaways 21700 flashlights are the next-gen rechargeable flashlight with improved brightness and runtime. They are powered by 21700 rechargeable batteries, the latest battery technology that powers electric cars. 21700 batteries have a higher capacity and energy density than 18650 batteries. 21700 flashlights often have standard USB-C ports that allow quick charging via power sources […]