3.7V 16340 Battery 2800mAh 16340 Rechargeable Battery 3.7 Volt Rechargeable 16340 Li-ion Battery for Flashlight (8 Pack, Green)

The batteries fit my Fenix 500 Lumen Headlamp. All four batteries worked and was re-charged to 100%. The original rechargeable battery that was in my Fenix headlamp lasted for at least five years before it would not hold a charge anymore. Only time will tell if these batteries perform as well as the original battery.

*****

Purchased 8 pack. I should have known 2800mah was impossible for this size cell, however didnt expect them to be as bad as they were. Typical capacity for this size cell is 750ah. I fully charged and tested each of the 8. Actual capacity ranged from 269ah to 290ah, tested at .25 amp discharge rate. That is 10% of advertised capacity. Listing is basically fraud.

I've bought these before and usually they will last a few months before I need to charge them again. As the time goes it's less and less. But you know when it time to replace them. This is only my second time purchasing these batteries in 4 yrs. So over all they work great on my Arlo camera.

Power lasts a long time.

Good fit

Tested these batteries upon receiving them. They tested at 100% and so far have held up with no problems. I would recommend them at this stage.

made my laser brighter