UltraFire 18650 3.7V "3600mAh" Batteries (Pair)

Pros: -it says 3.7V but my batteries outputs 4.16V
-the charge fast
-the voltage is high
-very very goof for the lasers!!!!! last a very long time.
-very good batteries
-can be used in DIY projects :D
-its 3600mah, very good

Cons: just a little expensive, but this isnt a really big con
it says 3.7V but my batteris outputs 4.16V, so it maybe can be harmful for certain lasers and other devices...

Other: you should buy them if you need them!!!!

Pros: It's cheap....... and acceptable, quality of the battery is pretty good, it comes with a 2 battery case to protect the batteries, worth it to buy tho. Used it for my tourch lights and it's quite powerful! hahah, quite happy with it, and tho it might not last as long as those expensive batts out there, this is still worth the price and quality.

Cons: The mAh is disappointing, about half or slightly more, but it fits the general use.

Other: Good buy! spending the $4.90 is still cheaper then most of the other batteries out there

Pros: I use this with my e-gigarette mods and its holding up pretty well overall. Fits in the Gripper VV and it holds up to the abuse pretty ok.

Cons: It doesnt seem to hold its charge like a 3600ah but more like half of that. Plus it discharges really fast after reaching its half life stages. But over all i cant complain.

Other: Good battery for a good price. It doesnt seem to hold its charge well like a 3600mah battery for for that price, who cares! jsut get more batteries and keep them charged up. Boom!

Pros: This batteries has very winning price. Standart size, it suitable for all my flashlights and chargers. Of course, it's not 3600 mAh batteries, but it's about 2000 mAh, IMHO. It's very good.

Cons: 1 of 4 batteries I bought was defective, I cannot charge it, and it's voltage is 0. When I put this 18650 at my charger, it indicates FULL CHARGE.

Other: Must have. But get ready to make a deal with some defective 18560.

Pros: -Good price. -Build quality feels sturdy and reliable. -Came half charged, don't have to charge it prior to testing whether it works or not.

Cons: -Definitely not 3600mAh, but it lasts for a decent amount of time.

Other: If you do not need batteries that are supposed to last through a fortnight of usage, these are cheap and will work for you. Not sure if its the best around DX though, there are too many batteries on sale here...

Pros: * This battery has a large capacity, and a tension of integrated circuits. * Simple to use and robust materials

Cons: * Big battery, it's dificult to recharge if you don't have the appropiate charger.

Other: Good battery if you want to own electronics designs. You can recharge it so it does not have to buy batteries constantly, or put batteries in series.

Pros: Do what they are supposed to do! Delivers 3.7V. Works very well with my led flashlight! Long lasting battery. Recharge it many times without worrying.. PRRICE IS VERY GOOD VERY GOOD INDEED

Cons: The case which they came in is really hard to open One day you have to throw them away as the lose power over time

Other: If you need them dont think twice. Get more than two, you wont regret. Leave them always charged so you can extend battery lifespan

Pros: It is a pair of powerful batteries which supply enough power to my flash lights. It is pre-charged and ready to use right after receipt. It even comes with a storage box.

Cons: It is a bit big and cannot be used for other devices. If it can be rebuild in AA or AAA size but still deliver the same level of power, it will be the greatest product and can be used in much more household devices.

Other: N/A

Pros: These batteries are great for the price. The last a considerable amount of time and are easy to recharge if you have the proper 18650 charger. The price is absolutely amazing considering there are 2 batteries and they come in a protective case. These batteries are actually protected from overcharge or over discharge which is very useful.

Cons: These batteries are great but the transparent case they come in is not well made and broke the second time i used it. For now, I have to tape the case shut. This is not really relevant because the batteries themselves are great.

Other: Great batteries necessity for owners of 18650 flashlights

Pros: They come in a box to save. High capacity, 3,600 mA and 3.7 V. Ideal for use with some models of flashlights.

Cons: Only be loaded in a specific battery charger. Its size is quite bigger than a AA battery.

Other: Good purchase, failing to use them for longer recommend its purchase. If you need to buy them without fail. It's cheap....... and acceptable, quality of the battery is pretty good