Search found 74 matches

by agraham
Nov 21 2015 12:16am
Forum: Stand-up E-scooters and E-skateboards
Topic: Looking inside a Boosted Board
Replies: 60
Views: 19083

Re: Looking inside a Boosted Board

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 charge and...
by agraham
Sep 23 2015 12:40am
Forum: Stand-up E-scooters and E-skateboards
Topic: 18650 Cycle Life vs Discharge/Charge Rate
Replies: 24
Views: 3545

Re: 18650 Cycle Life vs Discharge/Charge Rate

I think it's safe to say.. If you can afford it you might as well go bigger and add more P's to your setup and/or if you don't need the voltage (S) then exchange it for adding it to the (P) capacity. Adding more cells in parallel wouldn't do no harm besides added weight and longer battery life whic...
by agraham
Sep 20 2015 1:27am
Forum: Stand-up E-scooters and E-skateboards
Topic: Batteries' C rating?
Replies: 19
Views: 1922

Re: Batteries' C rating?

3X2s in series gives 6s, unfortunatly, in series, the capacities do not add up: u will have 5Ah... 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 be...
by agraham
Aug 01 2015 11:33am
Forum: Stand-up E-scooters and E-skateboards
Topic: Hacking a Boosted Board
Replies: 36
Views: 14188

Re: Hacking a Boosted Board

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. I'm g...
by agraham
Jun 21 2015 2:19pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Evolve Carbon AT with 50km+ range
Replies: 133
Views: 44362

Re: Evolve Carbon AT with 50km+ range

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 into...
by agraham
Jun 19 2015 4:01pm
Forum: Stand-up E-scooters and E-skateboards
Topic: One esc and two motors
Replies: 4
Views: 724

Re: One esc and two motors

Where have you seen it before? It does not work with brushless DC motors. 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...
by agraham
Jun 16 2015 8:25pm
Forum: Stand-up E-scooters and E-skateboards
Topic: How far is your average eboard ride?
Replies: 41
Views: 3278

Re: How far is your average eboard ride?

yea i think people are running their belts too loose on the boosted, going downhill while braking and causing their belts to rip... 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...
by agraham
Jun 15 2015 9:12pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Hacking a Boosted Board
Replies: 36
Views: 14188

Re: Hacking a Boosted Board

I got some questions by PM so I thought I would answer them here in case they are helpful for others: I saw in the pictures 12,2 mph. Is that the average speed or you like to ride at low speeds? I like to ride fast but at times I was on a bicycle path with families around and at other times I was gr...
by agraham
Jun 15 2015 3:23pm
Forum: Stand-up E-scooters and E-skateboards
Topic: How far is your average eboard ride?
Replies: 41
Views: 3278

Re: How far is your average eboard ride?

Boosted's belts are rated for 200 miles with 200lb rider? Are you joking? $1/mile if it's a $30 replacement cost. 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 r...
by agraham
Jun 15 2015 1:30am
Forum: Stand-up E-scooters and E-skateboards
Topic: How far is your average eboard ride?
Replies: 41
Views: 3278

Re: How far is your average eboard ride?

Pictures of the hack, or it didn't happen. Are you running A123s in parallel for 200Wh? 6km range? I thought it got 8-10km? 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 possibl...
by agraham
Jun 15 2015 1:11am
Forum: Stand-up E-scooters and E-skateboards
Topic: Looking inside a Boosted Board
Replies: 60
Views: 19083

Re: Looking inside a Boosted Board

edit: also, which charger part number are they using.. I think its a 80-120W meanwell 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...
by agraham
Jun 15 2015 12:38am
Forum: Stand-up E-scooters and E-skateboards
Topic: Hacking a Boosted Board
Replies: 36
Views: 14188

Re: Hacking a Boosted Board

Agraham, So basically I can run this turnigy pack: http://www.hobbyking.com/hobbyking/store/__14072__ZIPPY_Flightmax_8400mAh_2S2P_30C_LiFePo4_Pack.html parallel to the stock boosted battery and charge it separately with a icharger or whatever and it should work? No that is a 2P pack - 6.6V which is...
by agraham
Jun 14 2015 10:01pm
Forum: Stand-up E-scooters and E-skateboards
Topic: How far is your average eboard ride?
Replies: 41
Views: 3278

Re: How far is your average eboard ride?

Weekdays 2km to work and back = 4km. It's only five minutes door to door if I catch the lights. It might actually take longer to drive because I'd have to park. Weekends I've been limited to the 6km range of my Boosted except for a few times when I stopped at Starbucks to charge up. Now that I've ha...
by agraham
Jun 14 2015 7:44pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Hacking a Boosted Board
Replies: 36
Views: 14188

Re: Hacking a Boosted Board

CSN wrote:Could probably get the additional batteries in a slick enclosure to match the theme of the Boosted.

Why doesn't Boosted sell something like that and call it the Camel pack or something?
Totally agree.
by agraham
Jun 14 2015 7:43pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Hacking a Boosted Board
Replies: 36
Views: 14188

Re: Hacking a Boosted Board

thats really cool. Can you still charge everything all together with the stock boosted charger? I can charge everything together with the Satiator set to 43.2V - the blue pack bms will automatically stop charging when they hit 42V and then the Boosted will finish charging. Theoretically I could cha...
by agraham
Jun 14 2015 7:18pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Hacking a Boosted Board
Replies: 36
Views: 14188

Re: Hacking a Boosted Board

Great stuff; IMHO If I buy a boosted board, I buy it for the sleek look knowing its distance limitation. The genuine board (Loaded) and the enclosures are really beautiful. Even if you have more miles coverage by adding new DIY battery packs, I think the board sleek/stealth look is now totally dest...
by agraham
Jun 13 2015 10:39pm
Forum: Stand-up E-scooters and E-skateboards
Topic: So I bought a lathe...and made Hub Motors
Replies: 306
Views: 45883

Re: So I bought a lathe...

My hub motors arrived today. Hot damn this is sweet! These wheels are so huge. The motors are monstorous compared to the ones on my Boosted. I can't wait to get this build together.
Just gotta get my VESC.
by agraham
Jun 13 2015 9:57pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Hacking a Boosted Board
Replies: 36
Views: 14188

Re: Hacking a Boosted Board

Each pack is 500g https://lh3.googleusercontent.com/V_BR4ZxO-5t1VEvMAVh6DC_uZKikDMy2vUrJScZeMLg=w413-h308-p-no So this adds 1.5kg Dont really notice the difference when riding, the board just feels more planted. It does mean I can't drop off curbs anymore because it would scrape them up. I do notice...
by agraham
Jun 13 2015 8:24pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Hacking a Boosted Board
Replies: 36
Views: 14188

Hacking a Boosted Board

Previously I took my Boosted Board to the Grin Technologies office nearby for Justin and Robbie to check out: http://endless-sphere.com/forums/viewtopic.php?f=35&t=67586 I was complaining to Justin about the dismal range and he said to hack it. So I did! I bought three of these prototype packs of 10...
by agraham
Jun 02 2015 10:59pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Looking inside a Boosted Board
Replies: 60
Views: 19083

Re: Looking inside a Boosted Board

great info, do you think that could be used to charge my Evolve Carbon street deck? If the Evolve has a two-conductor plug (built in balancing BMS) and not some kind of balancing charger then the Satiator would surely work for you. It can be set to output 24V-60V and has algorithms for all the batt...
by agraham
Jun 01 2015 9:21pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Looking inside a Boosted Board
Replies: 60
Views: 19083

Re: Looking inside a Boosted Board

Update: I'm now using a different charger with my boosted board. It's the Cycle Satiator from Grin Technologies: http://www.ebikes.ca/product-info/cycle-satiator.html https://lh3.googleusercontent.com/JXvD4pFEf8oQj4lA6DQ5k4YZiY3viGn2CSJUfvDKTfo=w904-h678-no It's pretty cool - it's fully programmable...
by agraham
May 19 2015 12:26am
Forum: Stand-up E-scooters and E-skateboards
Topic: Kranx powerstik (drill powered)
Replies: 24
Views: 4271

Re: Kranx powerstik (drill powered)

I can see this working well for certain people: younger people with not much money who have a drill or maybe can borrow their dad's. People who want to bomb hills but are bored of walking up or don't have someone to drive them up over and over (maybe because they're too young?). People who are sort ...
by agraham
Apr 27 2015 11:20pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Battery question : determining the sweet ratio V/A for range
Replies: 25
Views: 2500

Re: Battery question : determining the sweet ratio V/A for r

The reason to power a motor at higher voltage is to drive amps, including max-amps. Lower voltage gets you lower amps: You've got it backwards. Lower voltage doesn't get you lower amps it gets you lower watts. At lower voltage it's easier to hit the amp ceiling. At a higher voltage you can achieve ...
by agraham
Apr 26 2015 10:35pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Battery board design
Replies: 59
Views: 3885

Re: Battery board design

You can't mix cells of different age or type or charge level. Given that cells have to stay together you almost might as well just weld them together in the first place and avoid any risk of sparking or disconnecting. On the other hand it would be pretty cool to be able to just order another 24 cell...
by agraham
Apr 21 2015 7:43pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Fibretech FlyPAN 2015 Dual Diag 12S
Replies: 557
Views: 65505

Re: WeFunk Stealth Division Dual Diag. Motor 7S10AH ADS/APS

BShady wrote:Only thing holding me back from 12s is the VESC which is 10s:(
According to Vedder it's 12s
http://vedder.se/2015/01/vesc-open-source-esc/ wrote:Voltage: 8V – 60V (Safe for 3S to 12S LiPo).