Top 3 (18650 cells) for high continous Amp output?
- Thread starter ebike11
- Start date
Hillhater
100 TW
Sony VTc6
LG HG 2
Samsung 25R
To start with....
LG HG 2
Samsung 25R
To start with....
serious_sam
10 kW
IMO, for 18650 cells:ebike11 said:
#1 Samsung 20S
#2 Sony VTC5A
#3 Sony VTC6
[EDIT: Added Samsung 20S]
Not the greatest cycle life, but definitely the kings of current.
I'm running a 20S5P pack of VTC6, pulling 150A peak. Sag isn't great, but it's a compromise I was willing to take for a high power/capacity pack that fits in a backpack, and still gives me good range for commuting. The sag isn't noticable at higher SOC, but is noticable at low SOC. Actually, even with the sag, my motor (MXUS 3k4T+FF+HS) is the limiting factor for riding off-road (being DD hub motor, inherently not great at continuous high torque riding).
If I was going to do it again, I would probably go 20S6P of VTC5A. That would give me a similar overall capacity pack, but the added cells and lower IR would give significantly less sag (and heat), for a 20% size increase. Basically a more consistent ride through varying SOC.
Next step up is LiPo. By far much higher power density, but you don't quite get the same energy density or cycle life as 18650. But I don't have LiPo, so current technology might be closing the gap ? Not sure.
https://lygte-info.dk/review/batteries2012/Common18650comparator.php
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j bjork
1 MW
Samsung 20s, sony vtc5A, molycell p26, LG HB2, HB3, HB6
Check rewevs on those.
Check rewevs on those.
j bjork
1 MW
If you want the best, dont look at 25r. They are old cells, used because they are cheap and relatively good.
But as someone said, if you want high discharge you should look at lipo instead.
Copied from mooch test of 20s:
Bench Test Results: Samsung 20S 18650...hardest hitting 18650 right now, beats HB6 and VTC6A
Bottom Line: This is a great performing cell. Until now the only 30A 18650’s we had were the 1500mAh LG HB2/4/6. The Samsung 20S not only has increased capacity over those cells but it performs MUCH better too, giving us a lot more vaping time at high current levels.
It hits harder than any other 18650 down to about 3.3V and appears to have a true 30A rating.
At lower current levels, under 20A or so, there are better higher capacity choices. But at 30A the Samsung 20S is the clear winner. In the 20A-30A range it is a close race between the 20S and the VTC5A/5D/6A. You’ll have to test them to see which performs better for the way you vape
I don’t have the datasheet yet to know Samsung’s ratings but I am estimating them to be 30A continuous and 2000mAh. If needed, these ratings will be adjusted once I see the datasheet.
https://www.facebook.com/batterymooch/posts/bench-test-results-samsung-20s-18650hardest-hitting-18650-right-now-beats-hb6-an/2092909657665276/
https://www.e-cigarette-forum.com/attachments/8f29ccad-c518-40a5-bacb-a161db6f8ee5-jpeg.864273/
But as someone said, if you want high discharge you should look at lipo instead.
Copied from mooch test of 20s:
Bench Test Results: Samsung 20S 18650...hardest hitting 18650 right now, beats HB6 and VTC6A
Bottom Line: This is a great performing cell. Until now the only 30A 18650’s we had were the 1500mAh LG HB2/4/6. The Samsung 20S not only has increased capacity over those cells but it performs MUCH better too, giving us a lot more vaping time at high current levels.
It hits harder than any other 18650 down to about 3.3V and appears to have a true 30A rating.
At lower current levels, under 20A or so, there are better higher capacity choices. But at 30A the Samsung 20S is the clear winner. In the 20A-30A range it is a close race between the 20S and the VTC5A/5D/6A. You’ll have to test them to see which performs better for the way you vape
I don’t have the datasheet yet to know Samsung’s ratings but I am estimating them to be 30A continuous and 2000mAh. If needed, these ratings will be adjusted once I see the datasheet.
https://www.facebook.com/batterymooch/posts/bench-test-results-samsung-20s-18650hardest-hitting-18650-right-now-beats-hb6-an/2092909657665276/
https://www.e-cigarette-forum.com/attachments/8f29ccad-c518-40a5-bacb-a161db6f8ee5-jpeg.864273/
999zip999
100 TW
With good buss bars.
Haggan90 said:
Em3ev uses the 25R cell in the 72V pack. Its the most powerful cell that they cell according to them..the built in BMS is at 100V max. though. So if the 20s10p can do 200A continuous...would you think the BMS is limiting the power potential?
goatman
10 MW
did you mean the bms is 100 amps? if so you can split the pack and parallel the two 5p packs together using two bms gives 200 amps. if your thinking 25r you might consider the 30q at 12p
goatman
10 MW
id go to youtube, vortecks. he is running high amps. wrote the code for the bms he is using or translated it? something... but his last video about things that work and don't, he is about to open his pack up to check one of his parallel groups. he has the complete list of his build and usually a link in the video description of where to buy it. just look at his V3 build videos, that might help you
goatman
10 MW
ebike11 said:
you might of already figured it out but just use the bms for charging and wire the battery straight to the controller with a 200amp circuit breaker
I have already made this kind of batery pack and now I am building again with 30Q exacly 22s26p it would produce 92.4V and 300A continuous ofcourse with BMS, but while you run at 300A you will produce a lot of heat to cool down but for sprint it should be ok. When I will finish it I can post it than. Last time I uave made 22s40p with GEB2500mAh, 10A max. and I am using them with same setting - 300A max.
So for capacity/current/price is 30Q good choice. But for only less capacity=less weight, only sprints Lipo will do better job.
So for capacity/current/price is 30Q good choice. But for only less capacity=less weight, only sprints Lipo will do better job.
Hillhater
100 TW
Easier to help if you gave us some actual numbers you want to achieve.
999zip999
100 TW
How about that Samsung 40t cell 30amp cell 4,000mah.
