What batteries can I use in the Fenix HT18 LED Flashlight?Updated a year ago
The Fenix HT18 flashlight uses either a 21700 battery or an 18650 battery using the included ALF-18 battery holder. If you're wanting to purchase the same battery that's included with the HT18, check out the ARB-L21-5000U rechargeable battery.
Fenix Direct Charge batteries can only charge under certain parameters, We recommend using a single port charger that is around 2 Amps with no more than 10 watts max. Most multi port chargers will not work, this includes computer ports. This is due to interference with the safety circuit in the battery. Samsung and LG are great choices, Apple and Anker for the most part are not.