This is not the first good UltraFire cell though.
I bought a USB rechargeable 18650 some time ago, rated 3400mAh and it had a decent LG cell under the wrapper.
Like you said: reliability has more to do with predictability than with a decent performance.
It’s just like my old manager. If things went OK, he re-named your work. If not, he was the first to do a Brutus on you.
You could trust him (tot do so). And looking over your shoulder without moving your head is good for the eye-muscles.
@Jerommel I have a pair of silver Trustfire 14500’s that are way better than Olight or Nitecore cells.
UltraFire is an 0K quality brand, some of their stuff is quite good for the price. However, for whatever reasons it is counterfeited. At all events, searching for whatever product in their official website is a wise advice.
It is not available anywhere in China. I see that there are still some US shops which haven’t sold their stock, but shipping to Europe is prohibitively expensive.
I tried to buy them there before but there is a silly bug in their site: you have to select your country in a list and that list is incomplete, many countries are missing, also the Netherlands. And there’s no way around that so I can not order :confounded:
I just received an order from Liion recently and got the Aspire 1100mAh, but checking today it’s no longer available at Liion Wholesale or IMR Batteries. Wish i would have known I would have got more than 1 pcs. :rage:
I’m not too good at understanding the graphs (probably don’t have the patience to figure them out)
Can someone answer a few questions:
Are they are truly 1100mAh?
These are better (higher capacity, higher discharge) than the Efest 900mAh protected?
* In the review it shows the Ultrafire’s will deliver 7 to 10A, so the protection circuit on these have a higher “ceiling” than the Efest 900mAh protected?
(Efest’s show current being limited to 5A by the protection circuit):
It was my understanding that the Keeppower IMR 18350 1200 mAh battery from RTD Vapor was the same battery as the Aspire. I picked up a couple to have on hand when I finally decide on either a Astrolux S1 or a Convoy S2+, both with the shorty tube.
That’s the whole reason I purchased the Aspire 18350 cells. They work great but short run times compared to a 18650.
Thanks for the testing data HKJ. :+1:
These are nearly certainly exactly the same cells as:
Aspire 18350
Keeppower 18350 1200 mAh
However, I wouldn’t trust Ultrafire. They may change the cell they use under the wraps at any point.
Therefore I would prefer to buy Keeppowers unless:
UF was so much cheaper that I could justify the risk, or
I was capable of measuring the cell cell receive AND getting money back if it underperforms AND got it cheaper to justify the potential burden