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  • WorthTrust 2 x UltraFire 18650 3000mAh 3.7V Rechargeable Battery + Charger
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WorthTrust 2 x UltraFire 18650 3000mAh 3.7V Rechargeable Battery + Charger

| 7 answered questions

Price: $8.00 & FREE Shipping on orders over $35. Details
Only 18 left in stock.
Sold by HaiFon Electronics and Fulfilled by Amazon. Gift-wrap available.
  • Ultrafire 18650 3000 mAh 3.7V Li-ion Rechargeable Battery
  • This battery has an extra long life for all your battery powered devices
  • Provides excellent continuous power sources to your device
  • High energy density, long life battery
  • High quality and durable
8 new from $4.00

Household Essentials
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Frequently Bought Together

WorthTrust 2 x UltraFire 18650 3000mAh 3.7V Rechargeable Battery + Charger + UltraFire WF502B Flashlight CREE XM-L T6 LED 3 Output Run on 18650 3.7v Battery NOT Included + 4Pcs 3.7V 18650 3000mah Rechargeable Batterys
Price for all three: $25.77

These items are shipped from and sold by different sellers.

Buy the selected items together


Technical Details

  • Brand Name: WorthTrust
  • Item Package Quantity: 1

Product Details

  • Shipping Weight: 4.8 ounces (View shipping rates and policies)
  • ASIN: B008ASQ2S8
  • Average Customer Review: 3.5 out of 5 stars  See all reviews (149 customer reviews)
  • Amazon Best Sellers Rank:
  • Date first available at Amazon.com: August 20, 2012

Product Description

Features:
1.New battery
2.High quality and durable
3.Provides excellent continuous power sources to your device
4.High energy density, long life battery
5.This battery has an extra long life for all your battery powered devices
Specifications:
1. Battery Type:18650 battery
2. Voltage: 3.7v
3. Capacity: 3000mAh
4. Charge Time: about 6~8hours
5. Rechargeable Times: about 500~700
6. Material: Li-ion Battery
7. Weight: 180g
8. Dimensions: 6.5 x 1.7 cm(L x Dia)
Battery charger Input : AC100-240V, 50/60Hz Output : 4.2V-600mA World voltage (US Flip Plug) Charge complete within 2-3hrs Compatible with 18650 batteries

Customer Questions & Answers

Customer Reviews

Batteries charge quickly and last a long time.
Joe Aschettino
So far, these 18650 batteries are great ( I own about 6 of them) and the charger works fine.
Donovan Mott
It is straight out of china with there writing on the product .
jason Aldridge

Most Helpful Customer Reviews

14 of 15 people found the following review helpful By MGB on September 7, 2013
These are everywhere now. There are literally hundreds of listings on amazon and the bay with these chargers and batteries for sale. UltraFire batteries are primarily made with factory seconds, or used recycled cells from laptop battery packs. Did you ever wonder what happens to that old laptop you discarded as eWaste? Well, they go to China where thousands of Chinese disassemble them and then sell us the old parts back in shiny new labels. I'm not making this up; this is serious business!

This method of "recycling" is underhanded, and down right dangerous. These cell are most likely not from the same batch, or rated the same. They may be close to the end of their life cycle, meaning you may get 1 battery that is good, and another that is weak. What all of this means to you, is your flashlight will not work as long as you expect it to, the cells could overheat during use, or during charging. There have been many reports of fires caused by these types of batteries.

UltraFire does NOT make any batteries over 3000mah, which is a good indication that the UltraFire batteries you are looking at are knock-offs, and are most likely made using lower quality cells than even the real UltraFire batteries. If you disassemble these cells and remove the end caps, you will most likely see evidence of the removed solder tabs that held them in series within the old laptop battery pack.

The charger is another thing altogether, and should not be left unattended at any time. I disassembled mine, and it's a basic, as cheap as they could possibly make it, who cares if it burns someones house down piece of junk like 90% of all generic China made electronics. The box has many regulatory, and safety markings on it, but after looking inside; I know these charger have never seen a safety lab.
Read more ›
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16 of 19 people found the following review helpful By Tommy Lincoln on June 27, 2013
Verified Purchase
I purchased this for a Silver Bullet ecig mod. Before using I charged both batteries fully. All I got out of each battery was a trickle of power. Awful! if you need a battery for a flashlight or something, it might be okay. You'd probably get a weaker beam but it might be worth saving a little money. But if you're looking for a battery to use in an ecig mod, or anything where you want an actual 3.7V output, skip this one. Since both batteries performed the same, I'm pretty sure it wasn't just a random flaw. I don't have a voltmeter, so I don't know what these batteries were actually putting out. But I can say that I bought a more expensive pair (3.6V even, though a 0.1V difference probably wouldn't be noticeable) and when used in the same mod they performed wonderfully. Definitely these batteries are the problem. Better to spend the money and get something that will do its job. I don't like posting negative reviews, but I hope my experience will save others from making my mistake.
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4 of 5 people found the following review helpful By IMC on October 2, 2013
Verified Purchase
these dont really last long maybe 1 hour max with a single cell cree. Also wont charge unless you have both batteries in the charger
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4 of 5 people found the following review helpful By Bishop on June 1, 2013
Verified Purchase
The batteries do their intended purpose. The charger is very flimsy especially when trying to flip down the prongs to plug into the wall. I foresee a breakage.
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8 of 11 people found the following review helpful By 2001748s on June 20, 2013
Verified Purchase
I don't think these are real Ultrafire batteries. The real Ultrafires have a gold neg terminal with "Ultrfire" printed on it. These have a silver neg terminal.

The charge last a few hours in my ecig. The real Ultrafires last all day and into the next.

Beware.
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1 of 1 people found the following review helpful By Bianca Williams on April 17, 2014
Verified Purchase
These batteries are terrible! I bought them for my SMOKTEC SID vaporizer. They drain fast and one battery has a "short" in it.
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3 of 4 people found the following review helpful By John on October 25, 2013
Verified Purchase
I just purchased several Ultrafire flashlights then needed batteries. I purchased these batteries and charger combination for a real low price. Good batteries and chargers. The only thing that was expensive was the shipping cost of approx. $10 from China.
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6 of 9 people found the following review helpful By TigerBite on May 27, 2013
Verified Purchase
Many people says these are fake and do not work, well not all products are made equal. Mine works just fine on my Trustfire flashlight. I havent tested how long they can last since I only use my flashlight when camping or trying to find something in my dark basement. The charger is well made but I did find some typos and bad grammar on the labels. For example they spelled "service", "serivice". And had the word "disassemble" spelled "di assmble". But overall still a decent product. I wish they had a manual or something because when I put the batteries in the charger, the light would turn green. Does that mean its fully charged or means there's still power inside the batteries? I dont know. Well if you order from Instun Supermarket, its actually located in Kansas and the seller is a chinese guy. You can buy from him instead of from China and have to wait weeks to get it delivered.

*Update*
So I now know what the lights mean. When I put the batteries in, the probably indicates there is power in the batteries. When charging it will be red. When they are done, the lights will turn green. Don't overcharge the batteries because I heard they can melt or smoke up.
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