Endless Sphere

What throttle pot do you have? I've graphed my stock SurRon pot and its S shaped and exactly opposite of what you show. Slow ramp at the start (and end) and steep in the middle. He's using a shitty chinese thumb throttle with abysmal voltage curve and complaining of throttle issues. Stock Sur-ron t...

Any updates on this? I understand the motor current dropping off as you run out of phase amps but why does the battery current also drop off in the mid/high end? That is the million dollar question! This is doubtless due to BEMF, however the fact that it increases so non-linearly with motor RPM is ...

I had a similar experience buying a motor from him about 4 years ago. Nothing has changed, he is incapable of functionally running a business and communicating to even a basic degree.

Chargebacks are the way to deal with this BS, call your credit card company and get your money back.

My favorite controller by a mile, the Nucular 24f has recently added the ability to datalog to the onboard microSD card. This allows for some awesome analysis that previously would only be possible with a handful of high end controllers and custom logging solutions or with a lot of external, expensi...

- Battery specs say 50V 2.2 kW. Do they mean 12S @ 110aH of an undisclosed cell type? Website says a 6 hour recharge so aprox 18 Amp charge? Batteries are supposed to be hot-swappable This is such a stupid, embarrassing error to neglect the kW h on your own launch brochure. By the sounds of it, pac...

DasDouble wrote: ↑

Mar 01 2020 9:50am

Well my personal Max-E got repaired like 2 times already. Worked really great with them. Hopefully not the whole controller is damaged but only the display instead.
Cheers

Recently? I'm not sure that Adaptto is functional as a business at all at this point...

I hope that wasn't a forum member, traveling 10mph over the speed limit in a crowded city setting and then leaving the scene of an accident. He deserves some punishment. Does England have the legal concept of contributory negligence, where a percentage of the fault can be assigned to the respective...

Good luck with that. I'm not aware of any recent repair successes. Tell your friend to get on the Nucular waiting list asap!

Generally drop-shippers charge their customers a premium for access to "their" parts, that they don't actually have at all lol. OK, but it's pure speculation on your part if that is what they are actually doing or not, right? You can just go buy the parts for less from a real dealer, but you do as ...

Hopefully he's a little more open to learning as he goes and doesn't take everything overly personal. There's clearly a lot of dicks on Endless Sphere. There's clearly lots of people that are haters too. All I can say is if the commenters in this thread and others are the welcome wagon...well you h...

Absolutely fantastic. I'm glad 'motormodder' is going to follow in EGs footsteps and evaluate this motor. Hopefully he's a little more open to learning as he goes and doesn't take everything overly personal.

Thread title is 20kw but all the published specs are 15, which is possible, though seems unlikely to maintain that output for any length of time. 2.2kwh pack assembled from 18650s or 21700 cells is pretty maxed out at 15kw output. Personally, I think the pedals at this power level are pointless and ...

Right... 90k income - Aus $22,597. NZ $21,871. You are familiar with the function of numbers right? I would have paid $3500 more in Aus this year, not including all the other ways Australia essentially taxes people, health insurance, car registration, mandatory vehicle insurance which are all an ord...

Small economies like Au have to have high taxes unless they have large trade surplus from natural resources like Oil, Gas, coal, Iron ore , etc. If you limit or eliminate the exploitation of those resources , you can expect even higher taxes. Mate, you post a lot of bollocks - but this takes the ca...

100% buy the 12f. For what you're doing you will want the phase amps, power limit doesn't matter so much.

DSG gearboxes are great but I suspect will be expensive timebombs when a lot of these cars get to 10 years old. It'll probably end up being the case that if it goes wrong most people will scrap the car. I've also observed that approx 1990-2005 or so was a good period for cars in terms of refinement...

Likely not economic to reuse, given how much larger newer wind turbines have become. There's also been a lot of iterative improvement in blade profile over the last 15 years.

Sounds cool. Not sure you're going to have enough phase amps or response out of the Kelly to snap the front wheel up though, they're known for being underwhelming on low end torque and low speed throttle response.

That said there are both BL AC motors and BL DC motors. 3 phase BL DC is "pulsed" direct current not to be confused with alternating (BL AC) current ... https://www.motioncontrolonline.org/products/ac-brushless-motors.cfm Not really true and somewhat confuses the issue further. AC induction (as in ...

No, again, your graph is meaningless. The % figures you reference have ZERO bearing on how this works.

Forget you ever read the table with those figures as they have literally nothing to do with calculating lifespan, efficiency, power etc.

Running a motor on a lower voltage will merely reduce its usable RPM range, plus power in the higher portions of that range. Due to the effects of bemf, you will be unable to drive the same current as RPMs increase vs if you had a higher voltage pack. The low down torque will be largely unaffected h...

+1 for the Nucular. It's the full package. Control, power, reliability, feature set, support. I'm running 500 phase 250a battery on a Surron and it's absolutely fantastic. I've owned most controller brands, in some cases many variants - this is easily the best solution for lightweight EVs (and even ...

What are you talking about? 3a doesn't kill a 30q. The percentages you're referencing mean *NOTHING* Read my previous post, look at the graph - what you're describing is utterly meaningless. I spent my journey with WILDLY varying power from -13,000 watt to +4000 watt under regenerative braking, vary...

a cell is designed to work a certain way, if you putt around in a hot rod car at 900rpm, its going to start to run like crap and carbon will start to build up and eventually it will stall. samething with a battery if its running at 100% the matrix inside is working the way its supposed to. if a 30q...

It's impossible to replicate the functionality of a clutch, having the ability to dump that stored energy near instantly is pretty killer - but I think you could get pretty close with enough of a reduction ratio. I've got a Nucular 24f, I think it's absolutely fantastic. Votol/Kelly/etc are absolute...