New member and would like to clear a few things up. I plan on purchasing a few Thrunight Flashlights. I want to get the best support batteries and chargers. I read this ENTIRE POST and was thoroughly schooled with the battery false claims. THANK YOU!
That being said, can the experts recommend some 18650 and CR123A batteries that are legit, reliable and decent priced? I have the cash for the batteries and just want to purchase the best batteries. I want the higher current rechargables.
I plan on purchasing the NEW NITECORE D4 Digicharger to maintain the batteries. It looks like it will provide the right info ( current/voltage and charge status) to properly maintain the right charge.
Thanks in advance
Can't give you links, but Illumn has great deals on good batteries and chargers. I like the NCR18650BD as a battery and the I4 charger is a lot cheaper than the Digicharger, but the Digicharger is a very nice setup.
I see that this is an old and somewhat infrequently posted-to thread but, as a raw noob, the information and comments are MOST useful. My only LED light is an Ultrafire 502D (labeled as a WF-5020). After eading several threads in other forums along with this one, I have a much different view of flashlights.:
First, my 502D just won't run any more. This unit is probably an authentic Ultrafire as the build quality is very nice: glass lens; the threads are fine and smooth; the finish quite sturdy; the O rings seal it water tight; and it's built like a tank.
Second, the problem most likely is with the batteries. I have a dozen or so red-wrapped, 3,000 mAh, protected 18650 "Ultrafire" items and they do not hold a charge worth squat after perhaps a dozen charges with an expensive (circa 2007) Maha smart charger. The symptons exhibited by this defunct rig seem to match the problems detailed abaout fake batteries discussed in this thread.
Sooooooo.... I am going to get a new drop-in that will handle two 18650's, perhaps install a custom driver, AND buy some authentic, protected 18650 batteries. Hopefully this revision will raise my 502D from the dead and recommence lighting up the night.
I will update this post once the project is complete and the new set-up is fully tested.
Very helpful post. now ill know what to look for for my budget lights. kept wondering why my smaller light seemed much brighter then the larger one. ah fleabay.
I have seen claims of a 6000 lumen flash light that was about the size of a mag 2d flashlight. Alot of that is lies sold from china and hong kong. They dont have same sales regulation laws we have in the usa
I have some of the red wrapped Ultrafire 3000mAh 18650's that came free with a light... tested them with my new BT-C3400 and they came up at 450mAh and 550mAh each. Pathetic.
I think they just pick a good sounding number and slap it on the wrapper.
Spare cells and extra "lithium" included in this camcorder battery
I have never tested any of the red wrapped Ultrafire 3000mAh 18650's that had more then 900mah most much less.
I'm surprised that I have not found anything in this thread about underwater use. I just joined the forum and am interested in more info. Lumens vs lux is a major bone of contention when it comes to underwater diving applications because of the different beam angles needed for different applications.
Lately, I am seeing claims for various kinds of batteries in the 4000-10000mah capacity. If I am allowed to post a link, here is one example;
Most of these brands posted on fleabay I've never heard of before. Anyone know anything about these batteries? Can someone please tell me if these mah claims are even possible? Has technology really improved that much in such a short time? At $2 apiece this seems waaaaay too good to be true.
And do not miss the disassembly: http://lygte-info.dk/info/batteryDis...0mAh%20UK.html
My website with battery and charger information: lygte-info.
More than 1000 reviews of batteries, charges and other stuff.
Compare 18650 LiIon batteries or smaller (RCR123, 16340, 14500, 10450) LiIon batteries.
Not only would you be extremely lucky if they were anywhere even approaching the 3400-3600mAh of the best genuine cells, you'd be fairly lucky if they weren't recycled from dead equipment, and I wouldn't trust any claims from such sellers of cells, including whether cells were protected.
Once upon a time have bought a couple of "Meco" 26650 batteries. Were cheap as dirt and I din't know then what does that mean.
Now I've got Opus BT-C100. Decided to check what I already understood is crap (Keeppower 5200 mAh runs roughly 4 times longer): declared -- 5000 mAh, test result -- a bit above 1600 mAh. Yeah, the crap it is
I am a newbee and a novice
But I have a Q regarding led string light that have solar rechargeable batteries
Lasted 2 years for me
says ICR, 14500, 3.7v 400mah
Can someone please advice which batteries will suit for these replacements and where can I buy them from- there are heaps on ebay /aliexpress but am not sure which ones are reliable
Cant seem to find comments from buyers either
Hoping this forum members can throw some light on this
Other one I have is
600mah 1.2v NiMH batteries