Do I have to recharge the batteries in my Fenix rechargeable flashlight or can I use a battery charger?

If your light uses an 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. 

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