Review on Tokeyla Thor Fire 18650 Flashlight Bundle – 4PCS 3.7V 5000mAh 18650 Rechargeable Batteries with 4 Slot USB Battery Charger | High 4000 Lumen Zoomable Camping and Hiking Flashlight (Black) by Tania Parks

I have another smaller version of this flashlight with a rechargeable battery. It has all the same features as this one (adjustable focus, magnifying glass, rechargeable 18650 battery, etc.). My old one uses only one battery and I thought the new one was a lot more powerful, but it's only slightly brighter. It might last longer with two batteries, but don't expect this to be a flamethrower. I used a Li-Ion 18650 and a NiMH AA charger and it works fine. It's nice to have a device that can charge many types of batteries, although I should note that the charge lights don't change color when charging AA NiMH batteries, so you have to guess if they have enough charge. Having four 18650 batteries allows me to switch between other devices, so it's a good option. Overall, compared to flashlights with a single battery of the same type, you're essentially paying $6 more for two more batteries and a charger that can charge more batteries at once (and different types) and a flashlight that can be a little longer may provide slightly longer light (two batteries vs. one - I have not tested the burn time). In summary, I don't think it's a super deal, but it does offer decent light and extra accessories compared to others. Don't expect super brightness, but it's good enough.