hi guys im trying to put an electric skateboard together, and im getting ready to start ordering parts but before i do that i have a few questions
im 200 lbs and i was wondering if 1 single SK3 -6364-245kv will be enough to push me and a 36inch long board to 20mph?
2.if that single motor doesnt, using 2 motors means 2 vesc???
and 3rd and last one (for now) i own a Vape Shop and i have acces to a lot of different 18650 batteries
the ones i use for my vapes are 3.7V 30A 3000mAh, how many of them and how would i have to use them (series, parallel) in order to get a range of 20 miles
Probably yes, the top speed depends on your gearing, wheel size, and riding conditions. I don’t recommend aiming for a high top speed. Instead focus on good torque and quality components. If you get anywhere near this speed you should wear full protective gear including a helmet, pads and maybe leathers.
-yes, 2 motors means you need 2 ESCs, or VESCs.
-Read through some of the battery build threads on this forum, search for 18650, 10s3p or 10s4p. You’d need between 30-40 to get that kind of range. That said, 20 mile range is somewhat impractical since you’ll likely exhaust your body before you can comfortably skate 20 miles
You have to make sure the discharge rate can handle what the motor and ESC draw. A good target is 50A continuous total. A single 6364 should be able to get you around, though it may have some trouble up steeper hills, especially at 245kv. You may want to go sub 200kv (@10s) to get additional torque. Two motors does mean 2 ESC/VESCs and should help a lot with torque, though you’ll probably still want to go a bit lower than 245kv. Hitting 20mph should be no problem given adequate voltage and gearing.
@Rob.Endless is right. The most common battery used right now is the Samsung 25R 18650. It has an internal fuse and a pressure vent, just in case. The gold standard.right now. You should check out some of the build threads. Search “18650” and check it out.
Single motor could be fine, but you have to think about the gearing that you will be using as well as the terrain you will be using it on. Also, 2 motors will need 2 ESC or VESC. On the ESK8 calculator you can get a decent idea of how your build specs out.
Here’s the ESK8 calculator that everyone loves.
I don’t mean to interrupt, but how is that Continuous 30-50A discharge calculated in a pack such as the Space Cell’s (10S3P) design? I don’t even want to get into C-ratings and all that as it’s more than my old brain can handle at the moment
Each cell has 20amp continuous discharge and it is 3p which is 3 in parallel. 3x20amp = 60amp continuous. But I think they have a 50amp fuse so you can’t go above 50 amps which is kind of stupid since the cells can easily handle 60amp continuous.
a lot of cells get warm at their max and will die faster if they are discharged at max current all the time. thats why people will at most run a battery at 75% of its max current. it doesnt get as hot and can last longer.
my Space Cell has a 30A fuse. Can I just swap it out for a 40-50A fuse? It’s just running a R-Spec 6355 at the moment but eventually I will run dual VESC and R-Spec 6355 motors. I have yet to blow the 30A fuse so just wondering. I have some LGABD or DBD pink 3000mAH cells, do you think it can handle my current single setup or even the dual? I don’t have any other specs on those cells but they all have about 90-100% of their capacity. I’m also planning on doing my first 18650 cheap cell pack if those cells can handle my load. I’m 170lb rider and my first e-board.
