Battrey 21700 FENIX 5000mAh , 3.7V, 18Wh

Dear Experts

I bought my FENIX HM70R HEAD Torch March 26 2022 and I have been using since then now what is happening light is flickering and I guess but not sure I need to use a different battery for testing purpose

Origin one is the attached photo .

Is it recommended to buy the same brand as the origin or alternative quality brand would also be fine ?

What would be an alternative good quality ?

Thx

Fenix batteries are protected batteries that are longer than regular batteries. You need to buy another protected cell with similar specs. The exact brand doesn’t matter as long as it’s a reputable one, but I don’t know of many options when you need protected batteries…

Noted
Thx for your help

Haven’t seen any specific recommendations yet. But when I thought about mentioning NKON as a trusted supplier, I noticed you live “down under” which rather limits your possibilities.

Thx Henk4U2 for sharing your experience