>These batteries are rated a bit higher than possible
Hm, you don’t think 3800 mAh 18650’s are possible? Panasonic released 3600 mAh 18650 few years ago, and IIRC they were promising 4000 mAh cells for 2018. Has anything changed in the meantime?
I am a complete novice in this crazy world of flashlights and batteries….
Recently when I bought my first (a Convoy C8), I needed to get batteries for it.
Not knowing anything, I saw these cheap Elfeland BRC18650 3800mAh and bought 4.
They worked fine when they were freshly charged, but I noticed they didn’t keep their charge for too long.
I soon bought some Samsung and Panasonic batteries after reading good advice on this forum.
I wanted a charger that could test batteries as well, so bought a LiitoKala Lii-500 which I received yesterday.
Once again (not being an expert) I read up how to do a Nor test and tested these batteries.
From being fully charged at about 4.2v , the tests finished in about one hour, and all 4 batteries only discharged less than 550mA until a charge of about 2.9v.
In comparison, I tested a Samsung 30Q and the test lasted 5hours 43minutes and it discharged 2894mA.
All these batteries are almost new and have only been recharged once or twice before.
Forgive me if I’m wrong, but in my humble understanding, the Samsung looks to be about the correct capacity, but the Elfeland less than 20% of the capacity claimed.
Correct! But there is more. Not only do the Elfeland cells have a lower capacity, they’re also very poor at delivering power. The Convoy C8 needs about 3A of current, and the Elfeland cell is struggling to deliver.
I definitely think that the Elfeland cells are made from horse droppings rolled in old bus tickets!
Since the Convoy I have also bought a BLF Q8, a second Convoy, 2x BLF A6, and an Astrolux S41. (I need therapy please!!)
I am running all of them with Samsung 30Q now.
I am also eagerly awaiting the Haikelite MT07S from the group buy.
Yup, all those lights require good quality high drain cells. The MT07S is a very nice light. For the group buy price it’s just an amazing performer with really nice machining and anodisation. :sunglasses: