Endless Sphere

Keep in mind that while you *can* use something like a switch or relay to short two or three motor phases, you first have to ensure they get disconnected from the controller, or else it'll probably be destroyed by the short. Also, if there's enough vibration, the switch or relay could engage acciden...

There is more than one version of the cell log (don't remember the model numbers) including one that stores info to be read by USB later, and one that doesn't. If you don't need the USB and just need to monitor live on the "dashboard", the latter is cheaper, and theres a number of other devices that...

before you waste time replacing hall sensors that might be good, and potentially breaking the motor trying, which part of the hall sensor tests failed? We've asked a few times about the hall tests, so we can help you find and fix the problem--if the halls test ok then there's no point wasting time a...

BTW, one thing that the dual pot would protect against where the inline resistors won't is loss of ground between throttle and controller. I've experienced that, and it can cause full WOT or only partial throttle, without actually having any throttle action at all, because of the way a hall sensor w...

Apparently it's a common method of failure protection; I've read of it here on ES a few times as well as on DIYEC; haven't personally run into one. It's simple enough to implement in the throttle and in the controller during the design process of those, I'd guess. I haven't worked out a schematic an...

1 - Is there anyway to figure out what the chemistry is? Li-Ion should work, if you mean the setting in the CA for the battery meter. 2. I'm assuming that the wheel motor spinning slowly is because the CA is not properly configured. Most likely this is just the throttle dead zone / deadband areas. ...

AFAIK, these are usually designed so that each pot reads in reverse of the other, so that when one is all the way "on", the other is fully "off". This is protection against a faulty pot, so the controller reads both of them at the same time, and if either one doesn't read the opposite of what the ot...

My 14s 20ah battery will have to go through two cycles to fill my other 24s 38.5ah pack, but it can be done! As long as the charger is left on the 14s pack while it's running the booster, it'll probably keep the pack from having to run too far down during the highest current phase of charging the b...

No sign of rain, but at least with the winds we've had, its brougth forecast temperatures down nearly 10 degrees, for the week, so still hot, but not yet summer temperatures.

Looks like a good enough deal--potentially $60 or so for the basic third of an ebike (still needs a fork, steerer, handlebar, brakes, shifters, front wheel, brakes, cranks, pedals, battery, battery case and mounting, possibly controller, etc, which could be a fair bit of money all together unless on...

At least some chargers wont' start charging (outputting voltage/current) until they detect a voltage on their outputs that meets their limitation. If yours is like that, the boost converter will prevent it from seeing the battery and thus it's voltage, and so it won't start charging. (the Satiator i...

If the chainrings you pedal with are the same as the ones the motor work with, then you'll change the loading of the motor at the same time as you change that on your pedals. In that case, changing the length of the cranks would change the rate you spin at (longer gives lower rate), but that will al...

If you're going to add a battery, get one the same chemistry and number of series cells, regardless of capacity, and directly parallel it with the other one. That way the load is distributed between them, so neither one has to handle as much, and both will last longer and be less stressed than if us...

Probably. Worth a shot to try it if you already have a cheap wallwart laying around for the purpose. If you have to buy something, you might as well get a part designed for it, though. Whether a wallwart will work depends partly on the voltage ratings of the parts in the converter. IIRC, numerically...

There is no USA federal law about ebikes.

Just a CPSC regulation about what can be sold as an ebike.

Lots of discussion about it if interested (search on CPSC)

I haven't deleted anything (I have no access to do that). If something is removed, then the author of it probably did so, for whatever reason.

Why are you starting a new thread for this, when the one you started two days ago already has people trying to help you?

viewtopic.php?f=28&t=94323


EDIT: Looks like the mods have merged the two threads now.

If you don't mind building your own, the Lebowski controller is nice; there's various powerstage designs by different members, all the way up to one big enough to power a car (used for drag races, IIRC) by Arlo1.

There are some kits in development to make it easier, but it is still a DIY thing.

I don't know if any of the other sabvoton models are wired or function the same way as yours, but there might be some info about the issue in one of these posts: https://endless-sphere.com/forums/search.php?keywords=sabvoton+*brak*&terms=all&author=&sc=1&sf=all&sr=posts&sk=t&sd=d&st=0&ch=-1&t=0&subm...

There are a number of threads and many posts about the various incarnations of their systems that may help, though it is a fair bit of reading. I don't know if the specific info you need is in there, but it's worth a look if no one else replies with it here. You'd need to see which type/year your mo...

sale thread
viewtopic.php?f=31&t=76205&p=1150890&hi ... *#p1150890

user threads/posts
search.php?st=0&sk=t&sd=d&sr=posts&keyw ... *&start=25

Getting hot again, supposed to be around 107F by the end of the week.

No rain (or clouds) here, though I saw lightning in clouds way way northwest of here (probably a hundred miles?) on my way home after sunset.

which part of the test did the sensors fail?

So...we have a breakroom at work that is around 15 x 15 feet, perhaps a bit bigger, but not huge. I park my trike just inside the double swinging doors, along the one wall there isn't anything people access during breaks/lunches. The righthand door will hit the front tire if swung open more htan hal...

No prices listed in the post as required by the rules, they must be free. I'll take a thousand. ;) Since they're posted in the used section, you should also give details on how they were used, and what they were used in and for--it'll help people decide if they can be used in their application or no...