Recent content by agraham

Not to take anything away from endless-sphere it's a great place but you will find a lot more traffic on this topic at https://forum.esk8.news/

Looks like speedboard is ghosting their kickstarter backers and deleting any questions about it on their facebook.

Bought this for a project I wanted to do but never got off my duff. https://ebikes.ca/shop/electric-bicycle-parts/cycle-analysts/ca3-dps-n-bracket.html New in the box. $100 - shipping not included

I'll just repeat what I said in my pm... You can totally do that. The cells are A123 ANR26650M1-B cells. http://www.a123systems.com/lithium-ion- ... l-cell.htm You can find them for sale right here on endless-sphere. The problem you are going to have is that the circuitry that manages the...

You are confused. Adding cells no matter whether you add them in series or parallel will increase your capacity. But wait you say. The amp-hours only go up if if I add them in parallel Yes but the watt-hours goes up no matter which way you add the cells and its the watt hours that counts. If...

Adding more cells in series does cause your capacity increase of course. Since the voltage is higher you will draw less amps so you don't need as many amp hours to go the same distance. It would be better to think of capacity in terms of watt hours not amp hours. Adding cells in either series...

Nice one rev. Your hack is simpler than mine. Using the same chemistry is the right answer for most people so that will be my advice to others from now on. Also tapping the wires on the esc side where there is more room is a stroke of genius. I'm going to edit my original post to mention that...

Well done sir! I did a much simpler hack on my Boosted board where the extra batteries are simply stuck on the bottom (the Boosted doesn't have a cavity like the evolve). They are attached beyond the bms and so have bms's of their own. I thought about building my own pack and hacking more cells...

A brushed motor has a "commutator" that rotates the brushes against the points and turns the windings on and off. A brushless motor has a controller that senses the rotation from the back-emf and turns the windings on and off. One controller could not drive two motors because they would not be...

I noticed a popping feeling when braking really hard. Didn't realize at first it was the belt teeth popping over. I make sure back off when I feel the popping so I don't trash my belts.

I got some questions by PM so I thought I would answer them here in case they are helpful for others: I like to ride fast but at times I was on a bicycle path with families around and at other times I was grinding up a hill. Since the Boosted never seems to go above 21mph the average for the...

That would be 15c by my calculation. I weigh 185. I'm not sure if I've gone 200 miles yet but my belts seems fine. I've never tensioned them or anything. I guess I should order a belt replacement kit since some day I will need it.

The hack. If it's perfectly flat and you go slowly you could maybe go 10km but you'd have to really crawl along, and push off with your feet any time you stop. 8 km is possible if you go slow. At top speed less than 5km is what you can expect. If there are hills it's 4km or even 3km. Here's a...

It was made specially for Boosted by Mean Well. The part number starts with "BB" for "Boosted Boards" and it is not documented anywhere. I'm not sure if the CCCV charging regime is handled by the charger or the on-board bms. I can't get my multimeter leads in when it's connected so I'm not sure...

No that is a 2P pack - 6.6V which is way too low - you need 10S, 36V. It would be instantly destroyed by the higher voltage Boosted and if you were unlucky it would catch fire. You could put 5 of those in series to get the correct voltage tho. It would be a bit big and heavy tho and you'd have...