LG Battery wont work in FW3A

Brand new to this forum but getting more and more into flashlights recently!

I have some Samsung 18650’s on order for the Stonewashed Ti FW3A I picked up this week… absolutely love this light (had the grey alu. one but wanted the Ti).

While waiting on the samsungs to show up, I found this LG 18650 (LGDBHE21865) flat top laying around the house but I can not get the light to turn on with this in.
I tried all the troubleshooting on the fw3a thread but still no light.

The light blinks when I screw the head down, but nothing happens when hitting the switch. Yes i made sure the battery is fully charged, and yes I made sure the light wasn’t locked out.

From researching this battery online, this should power the fw3a fine correct?

Any insight helps, thanks BLF!


Try to tighthen also the tailcap screw it might be work…

make sure the head and tail are full tighten, since it blinks it doesnt seem broken.

blinking once, means the main contact has been made, but the signal tube is not connected yet[the inner one].

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