Do the batteries in my rechargeable flashlight have to be charged through the flashlight or can I use a battery charger?Updated 2 years ago

If your light uses a 21700, 18650, or other standard type of battery you can charge the batteries that come inside your Fenix rechargeable flashlight through the flashlight or on a charger. You don't need to specifically charge them using the flashlight's charging function. If the battery is a proprietary battery for that flashlight or is a built-in battery pack, they can only be charged inside the flashlight.