Hi guys I just ordered a COMETA from the groupbuy. I know the Vappower was desinged for vaping, but will this make a good battery for the COMETA? If not, do you guys suggest another battery instead? Thanks guys!
I’ve heard good things about these, should do pretty nicely on that torch:
2 x HETER 4500mAh 3.7V 26650 INR Rechargeable Li-ion Battery
Cheers
P.S.: Out of stock for now. :-/
Hi EllaEmma.
Bought 2 Vappower IMR26650 4200mah and received then 2 days ago.
Tested the cells with my MT-G2 Convoy L2 with a MTN ELECTRONICS FET DD zener driver. Measured the tail current with a 12 centimeter long 12awg silicon wire and a UNI-T UT210E. Got a unbelievable read after 30 seconds of 14.1 amps.
In the same setup, a pair of Keeppower IMR26650 4200mah measured 10.8 amps. I considered these Keeppower good high discharge cells, but they can’t keep up with the Vappower. And the Vappower have higher capacity too.
Recommended.
See HKJ tests here in BLF.
Hope this help you decide which battery to buy.
Mozart
I must agree. I got the Vappower sort of on a gamble, and it turns out that the can pull more amps than my King Kongs! I love these cells.
Thank you so much guys! Can’t wait to get these.
EllaEmma:
Please correct the link in your opening post. It goes to the wrong product.
Should be this one: http://www.banggood.com/VAPPOWER-IMR26650-4200mah-3_7v-40A-Rechargeable-Lithium-ion-Battery-p-936095.html
Sorry guys, those Crappowers are [redacted] expensive (at least at Banggood). You seem to be somewhat stubborn yet, that’s your problem. The Heter units I suggested for sure will perform quite nicely in flashlights unless stupidly and radically driven, and you can get more than two for the price of one of these Crappowers. Each one to his/her own… :person_facepalming:
Cheers
Barkuti:
The OP specified that the battery was intended for use with the Cometa, a direct drive flashlight.
I don’t think the Heter 4500mAh (rated at 13.5A continuous /22.5 pulse) would perform nearly as well as the Vappower (green) 4200mAh, Basen (black) 4500mAh, or the Efest (purple) 4200mAh for that particular purpose. Each of these latter batteries are rated at least 30A continuous by the manufacturer and tested at least 20A continous by independent reviewers.
Here’s Mooch’s tests of 26650’s. He rates the Vappower as middle of the road
Those Vappower IMR26650 4200mAh are my batteries of choice in that size. I haven’t seen any other that can match their performance.
As of now the Vappower 4200mAh is a great cell when it comes to output performance in the 5 A range - which is about what we need in a single-cell / single-emitter light like the Cometa. Look for the tests from member HKJ and from dampfakkus.de where you can compare the Vappower 4200mAh to others.
The Vappower is not designed for vaping, by the way. It is marketed for vaping. The name itself does not suggest anything the cell is capable of.
Remember that mooch is testing and rating from a view in the 20A to 50A department, which is not the range we need for flashlight use. Don’t get me wrong, mooch’s testing is great and I hold him in the highest respect. But 20A does kill an XP-L HI and even with initial current above 5A the current will decrease so soon, that we hardly need to bother above that range.
OP still links to the 5200mAh cell, which is different to the 4200mAh one. The 5200 has more runtime at the expense of lower initial output. There is no best cell, only cells optimized for different scenarios.
Oh, and the Heter: I haven’t seen a reliable test yet, so I wouldn’t dare to trust them. And the low price, the capacity of 4500mAh and the design of the poles suggest it’s a LiCo cell, which in that case will be vastly inferior (much more voltage sag) to the Vappower 4200mAh in a light like the Cometa. Price is only one of many criteria when it comes to the quality of a cell.
I share the same point of view. According to HKJ’s tests Vappower cells appear to be the front runner in the less than 20 Amp area though he hasn’t tested a few of the other newer cells several people rave about.
Plus, Vappower cells are about $10 per (depending on vendor), which is about the best price for good 26650 cells.
HETER 26650 4500mAH and KEEPPOWER 26650 5200mAH
We could benefit from the testing work of some daring-devil out there.
Uuuuh! Guess I already had too much carefully fermented grape juice last night… :confounded:
Cheers 
Funniest way to disguise a profanity I have seen.
Sorry, I corrected the link in the original post. Thank you for your input guys; I will give them a try. They are not the cheapest cell, but I don’t think the price is outrageous either.
Vappower 4200 performs like Keepower 4200 and it`s sorf of a gamble you know, there are bad ones, yet they are good for the money( bought over 20 pcs from FDT before they shut down the battery shipping)
I havent seen any barrery that could beat Efest 4200 so far, they said Basen 4500 is better( if gambled properly) yet i havent tested it
Thats valid for a 26650 battery/ fed dd driver combo
Hi Mitko, have there been many instances for under-performing Vappower 4200 cells? On the HKJ tests, the graph suggested the Vappower performs better than the Keepower 4200 up 30A.
Well i mainly test under 10 amps so i dont have that big exp above that value….anyway i got maybe 2-3 “bad” ones out of 20, not that bad actualy but like 10%.
Btw one of the worst batteries that i had ( was before 3 months) were exacly Efest 4200, i had to RMA them cause they were rusty - the rust even pierced through the battery plastic lable near the +…… they were kept in a very humid store, who knows ( only a guess )
Thank you for your input Mitko. 2-3 bad ones out of 20 isn’t great.