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Impressed
Posted by abc123abc on 10-14-2010
Involvement: Expert (understands the inner workings) - Ownership: more than 1 month
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Pros:PCB works very well. Batteries hold a charge very well. Capacity seems at least 2000. I can't test them precisely, but I ran them at 60mA for about 6 hours and they were still running so they pump out at 400mA. Sounds pathetic, but batteries usually only run down to about 60%. Subtract mfg overestimate of a minimum of 10% and you should get about >1200mA+ out of this battery. The reality is that non-premium batteries give you 50% of that value.
Cons:Price a bit high for a 2400mAh battery, but it's better than other places.
Other Thoughts:
Bottomline:So far this battery is worth it. The mAh seems good. If anyone can test these precisely, but your numbers. Thanks

damn fine
Posted by masterwolf on 07-03-2010
Involvement: General (knows how to use it) - Ownership: 1 week to 1 month
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Pros:Excellent product work exactly as required - goes a real charm in the ultrafire lights instead of 2 x cr123. voltage protection and easy recharging make them a dream to use and no more stuffing around with disposables and trying to find where the new ones are stashed, just grap one and go
Cons:no cons
Other Thoughts:very nice
Bottomline:if you dont already have an cree light from here - buy one then buy some batteries to go with them and these are a really good choicebuy them, buy them for friends - curse on 500 world min

Ok
Posted by nikita800 on 03-28-2010
Involvement: Expert (understands the inner workings) - Ownership: 1 day to 1 week
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Pros:NIce and cheap Lithium Batteries that works. Protected, and the protection circuit works as the way it should be. This battreris looks quite nice too. I can't find anything wrong with this batteries yet. It cuts down the voltage at 2.7V as it should be. Then it takes about 5 hours and little more to fully charged with WF-139. If WF-139 puts out advertised 450mA correctly, about 5+ hours of charging time means this battery's capacity is at about its advertised capacity. I have many flashlights mostly procured from dealtoworlde and so far these work in almost all of them, I have had trouble in a few of the C series lights, but that is more of a 18650 battery problem than a specific 18650 battery problem I believe.
Cons:No
Bottomline:Good

Good batteries!
Posted by RevolverOcelot on 02-05-2010
Involvement: Expert (understands the inner workings) - Ownership: 1 day to 1 week
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Pros:Fantastic batteries for the money. I ordered a pair of these batteries and both arrived safely with a full charge. I'm currently using one in my Cree flashlight (Ultrafire A10b) and it works perfectly fine. PCB prevents overcharging and discharging.
Cons:PCB on one of the batteries is slightly crooked but still functions without any problems. PCB board at the negative end of the battery is also very soft and already has circular marks from the contact spring in my flashlight. Because these batteries have PCB protection, they are slightly longer than regular 18650 batteries and may not fit in certain battery chargers. Make sure your battery charger will accept protected batteries! Batteries were wrapped with cellophane tape and when I removed the packaging, both batteries had a sticky tape residue on them. Fortunately, I was able to remove the residue just by rubbing the residue off with my thumb.
Other Thoughts:Purchased these batteries for my Ultrafire A10b flashlight (SKU.29096) and they work perfectly. Batteries are wrapped in cellophane tape and shipped in bubble wrap. They arrived safely and were not damaged.
Bottomline:There's a wide variety of 18650 batteries for sale on DTW but I chose these because of their reasonable price and capacity (2400mah). I'm glad I bought these batteries because the quality is pretty good. They hold a good charge and get the job done.

Batteries work great!
Posted by cyanprinter on 07-15-2009
Involvement: Expert (understands the inner workings) - Ownership: more than 1 month
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Pros:Pros: Great price, they hold a charge quite well, I have found no difference between these and 2500 mAH version (SKU 5790). I haven't done an academic test between the two though, but for all intensive purposes, they work great!
Cons:Cons: Always worried that a fire could start while they're charging, so I only charge these when I'm at home-Better safe than sorry.I keep them in a protective case (18074) to make sure nothing metallic causes a short while they're in my bag.
Other Thoughts:
Bottomline:They work great, no complaints with them yet-hold a charge for quite a while. Thanks to dealtoworlde for offering a great price on these!

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