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Old Thread I know but God its a real minefield on these batteries I been looking at some and doing research and TBH dont know what to get as I do need a new set of 4 but which ones? which ones will last the longest as that's what I want new ones for. was thinking of buying Golisi S30 Black 35A 3000mAh 18650 and seen a youtube video saying there really good but then I read this...
So still dont know what to buy that will last me for more then 1 day
Bottom Line This cell claims a 35A continuous current rating and 3000mAh capacity. These are both exaggerated but Golisi has agreed to rewrap these cells with a 25A rating before March 2018.
While I was quite disappointed to see the exaggerated ratings I am glad they say they will be rewrapping these cells with more realistic ratings. At its claimed 35A continuous rating it delivered less than 100mAh down to 3.2V. At a 0.5A discharge it only delivered 2846mAh.
This appears to be a China-manufactured cell as it doesn’t match any Samsung, Sony, LG, or Panasonic/Sanyo that I have. Golisi’s discharge graph shows a cell with much better performance than the four I tested. I had a couple of discussions with Golisi about the differences between the factory’s test results and mine but we weren’t able to resolve anything. I am unable to explain the discrepancy.
The four cells I tested showed the typical variance in capacity and internal resistance for China-manufactured cells. I don’t think these cell-to-cell differences are noticeable when vaping though.
Golisi has compared this cell’s performance to the 20A 2500mAh LG HE2 in a Facebook post. Its voltage while running and capacity are a bit worse than the HE2 down to 3.2V but the Golisi does run a few degrees-C cooler.
I estimate this Golisi’s ratings to be 22A and 2800mAh.
Four cells were donated for the purposes of testing by Golisi (www.golisi.com). Thank you!