3.7V Rechargeable Battery, 30A 2500mAh Rechargeable Lithium.ion Flat Top Battery for Flashlight. (4 Packs)

Great Batteries (so far) at a great price!! But only time will tell. I will update review, if they turn out to be not so great. But I don't think that'll be the case. Charge speed is basically the same as other 18650 batteries that I have, which charge just fine. Can't be more specific as I don't "time" them as they ccharge. Their size are perfect. Can't speak on life span of the batteries, but they stay charged and keep my devices working better than some other 18650's I have. Would definitely recommend

Come with a very useful case, charge fast and hold it well. No complaints, should have gotten these much earlier and will definitely just buy these again for my electronic cigarette. I used to buy another brand from a e-cig store and legitimately only half of them would ever work. That's not the case here.

Can't say about other uses, but it works good with Geekvape Aegis Legend 2 and 3 mods. Lasting whole day with heavy vaping

Got this for a vape. I held off on the review to see how long the batteries would last or if they dropped in any capacity and they still seem like they are new.

The Topusse 3.7V Rechargeable Batteries worked and are still working well!

Great batteries and quality. Ended up buying a dozen of these. I use them in all of my mods.

All 4 batteries capacity tested right around 2600 mah +/-, weight 45-48 gm.

Bought 8. I already have 2 bad cells, 1 with leakage and loss of voltage after 2 charges. The other was bad from the start. Reading 2 volts and not even recognized as present by my charger. The other 6 seem to be ok for now. Voltage and mAh as advertised.