Fellows, please don't delete your posts right after publishing them unless you absolutely don't want to say a thing. I mean, edit and change whatever in them. When you delete a post and create another right after, the thread answer notification becomes invalid.
I wondered when I saw the Colaier G35 cells advertisement if that was as good a deal as it appeared. Thanks for commenting on it.
Hm, Colaier also sells the Lii-202 charger for several dollars more than other places that have it marketed under their own brand. Hmmm.
Wow! :facepalm: He built an e-bike battery pack where he is using a thin wire to carry all the current from each battery stage (up to 30A or more). Creepy! Hope he is fine, really. I would have used ≈5x AWG20 wires or 5x (2 × 0.25) mm² solder wick patches for that same requirement, better safe than sorry.
Looking for a cheap single-cell charger to include with flashlight gifts. Had my eye on the Liitokala Lii-100, but can’t find it from a US supplier.
Does somebody know where to get it in time for Xmas?
Or can you suggest another?
Must have
Less than ten bucks, preferably a lot less.
Single-cell, multi-size.
Lithium or NiMH Charging (I think NiMH capability is important when giving to muggles, a bit of idiot-proofing.)
A charge percentage indicator, not just a red-green light. 25-50-75 percent.
Power bank is a plus, not required.
USB, no wall wart needed.
Deliverable in less than two weeks.
I like the idea with a voltage display on a single cell charger.
The multi chemistry feature can also be very useful and the two currents means more battery sizes can be charged at a good rate. It seems that Liitokala is the only one doing this on a single cell charger.
Can insert the battery in either polarity, another unique feature.
It looks like they started in business by selling more complex cell analyzers, and only then moved to regular chargers, and that’s why they continue with the extra features.
However, on further inspection I decided the user interface is too many options to gift to The Muggles. I will give them plain Li-Ion chargers.
I had not yet seen the new S1 charger with digital display. Will get one of those for when I’m traveling light.
All tested above 3200 mah and 6 months later have not had any issues with them. These are Chinese batteries. Do I trust Chinese batteries? If they test right and are consistent, then yes I do but hey that’s just me. I trust my wife too, though she could be out blanking sancho every day, I don’t have evidence of it so I’m good. I would buy them again without thinking about it.
Nearly guaranteed that is some energy cell from a chinese OEM. I could find someone who took a photograph of a cell in vertical position more or less showing the top:
Not the best photo either, but at least I can discern a penta-lobular/penta-legged top. This means the cell is most likely from BAK (photos clearly showing particularly top and maybe bottom from cells are very important).
Discharge rate presume 2C, maybe 3C if lucky. 35A? You know that is a lie. :facepalm:
I ask because I received such a cell and did a discharge test. It heated at 1A enough to make an Opus pause.
I will take a look at the cap, thank you for the tip.
Bear in mind the li-ion industry has never been consumer oriented. The big li-ion manufacturers (Samsung, LG, Murata and Panasonic/Sanyo, or the big 4) do not feel at ease with this idea because proper use and management of li-ion cells requires a minimum level of knowledge and responsibility. In the chinese market there is a good deal of battery OEMs (some quite big but little known versus the big 4), and many companies buy bulk quantities of cells, rewrap and sell them to consumers with varying degrees of morals, professionalism and honesty.
Does anyone know if Vapcell store is legit?
I would like to purchase Samsung 30Q from them, however, in their listing I can’t see any reference that they sell Samsung cells. The product page description says “no fake”, but they also write “Vapcell original 18650 3000mAh 20A 30Q”, which makes me wonder if it’s a branded cell of Vapcell or a genuine Samsung cell. Screenshot:
Another thing to be suspicious of, the 30Q cells are 15A and they rate them as 20A.
Vapcell has quite decent reputation, but after all it is a rewrapper; with this I mean they can still stick whatever rating they feel comfortable with over any cell.
Different OEMs abide to different in-house rating standards. LG, for example, rates “20A” its HG2 cell despite being slightly lower performing than a 30Q. Samsung tends to be conservative with ratings, whereas cell rewrappers long to stick the biggest figure they find acceptable in their wraps (even if some times it is an outright fabricated and dangerous lie). A 30Q cell, with temperature protection, could be used fine at ≈20A.
P.S.: you can find other providers of 30Q cells besides Vapcell. In the european market, NKON is a well known distributor.