I already posted this under the “TB 40 deck” discussion, but decided to create a post to show you my new very long range machine.
Part used on the machine and cost related (without VAT/customs/shipping) :
Deck: TB 40 from Torqueboards ($120)
Enclosure: Bigben big enclosure from BigBen ($80)
Battery: 12s8p Samsung 50e (40Ah, 80A continuous, 160A burst), cells bought from Fogstar, and built by our Czech battery builder ($300 for the cells, $40 for the build)
ESC: Unity with Metr Pro ($255)
Drive train: TB DD 90KV from @torqueboards with TB 110mm Artic Blue 74A ($750)
Light: Shredlight ($100)
Telemetry: DavegaX from @janpom ($100)
Ok, I lied… He asked for CZK 1000 ($40), I gave him CZK 1200 ($47)
Yes I do feel the difference, they are plushier and grippier, I put only 500km on them compared to 3000+ km on the black ones, so I can’t speak yet about durability (I sold the black one to @michondr, he loves them I guess)
My bad, I thought the max burst was 20, 15 is still enough for me as I am lightweight (75kg with gears) and we don’t have massive hills like in SF in Prague, CZ. We have hills that are 15/20 degrees or more, and 300/500 meters long.
As my motors are 90KV, and not 75 or 60, torque is not strong from 2 to 10km/h, but after that, this thing is a rocket, all the way to 70km/h. So almost impossible to start a hill stand still.
Regarding the range, if the weather is good, I might try it this Weekend, but we are talking 5 hours non stop of riding at 30km/h… that’s going to be tough, but shall be done for science.
The builder is working in a company building batteries for electric bicycle, so cables/connectors, paper, etc… is pretty much covered. The 40$ is actually only for his time.
It’s not his first batteries for the Prague electric skateboard group, but it was his 4th of 5th. So far, any of us had issue.
maybe from the builder?
), but just want to make sure you’ve got a proper battery that won’t light this lovely board on fire…