Endless Sphere

FYI.. On some of the controller cases, the top is held on by a bead of silicone and pries off. This is needed for units that use an extra piece of metal to clamp the Mosfets to the side of the case,

I've not seen the HVC with 14S on my KT controllers. I use the square wave and sinewave 6 FET 20A models, and a 25A model from Luna. I've never run my S12S on 14S though. The 14S though is the only battery I charge to 90% though. What I've seen is a minor LVC issue. It remains set at 40-41 V with 14...

I believe your 1.5 power supply is just on the threshold of the throttle start voltage. Stack an AA cell on top of it or use two AA cells in series if you have enough hands to hold them. Also two 1K resistors twisted together in series. Put the outer ends on the power, and the middle to the sensor i...

No complaints on my Luna Mini, but I haven't used it but a few times with my 25A controller and 750W hubmotor. Mostly used to run a Q100H. I will criticize the XT60 charge plug, which is male and easy to short circuit on rivets and other small protruding metal parts. One of these days, I will change...

That's something. Mine only growled under load and since I had built tow identical bikes, except for the controller, the growl and poorer performance moved with the controller. Your original kit had a different controller w/o LCD. Did you ever run that combination? I should also mention that I've in...

Oh #$%@^/. My first answer was not even close. They are 12mm.

I checked what I have and my 12 x 1.50 and 12 x 1.75 taps don't fit. I believe they're 12 x1.25.

If you're in the UK, check with that Woosh vendor,

These cables might help you. This first one is two parts. You splice the part with the female plug to a controller that doesn't use the 9 pin connector and the other part is not used. These should use the same color code as Bafang. Splice like to like. https://www.ebay.com/itm/A-pair-of-9Pin-Extende...

They're [wrong]m14 x1.75 [/wrong], if I remember correctly. Unavailable except at ebike shops, I suspect. I also thought BMSbattery ships them two in a little bag with torque washers. I'd suggest you contact them if you didn't get them.

Your picture says you've got 2.4AH cells in there. If it really was a 15AH battery, you would need six of them in each parallel group to get close to 15AH. Then 13 groups in series to get 48V, for 13S-6P is 78 cells. I think you have 52 cells for a 13A-4P and it's a 10AH battery with four cells in e...

Does the display go blank when this happens?Can the LCD8 show the running voltage? If it does, what does it show when the motors stop? If it doesn't put a meter on the battery and see what it shows. My questions are pointed toward determining if your battery is just too old to power the system. Usua...

A bike like this will probably have a top speed around 30 km/hour on 36V. bicleta.jpg The 810 display does not have any function for speed restriction. You may be lucky and your existing controller has a hanging plug that is a speed restrictor. Then you just unplug it. If not, then you must replace ...

BMSBattery forgot to send you the motor extension cable. It looks like this. It will allow you to connect the motor to your controller.Send them a pic and request it. It has come with every motor I've purchased from BMSBattery, People like me prefer the 9 pin connector because it goes thru an axle n...

Seems like a lot of amps for the Q128H. It does not have a temperature sensor, but this sounds like the controller or battery cutting out. Can the battery BMS handle 40A? Did you connect a throttle and does that work continuously. What's the battery voltage and capacity?

The Q128H definitely freewheels and BMSbattery probably has no customer service, but I've been lucky and never needed it.

On the controllers that I have, there is always 5V power for the pedal assist sensor and 4.5V power for the throttles. Based on amberwolf's hint that SP is the throttle signal, then your SP5V must be the throttle power. GND0 looks like ground. That is a nice looking controller board. Never seen one ...

Too bad Grin is back ordered on the G310, or I might have bought one. Maybe CNEbikes would carry them. I bought a fatbike bafang motor there once, and they keep sending me email. They carry generic 250W hubmotors for about $40-50. Really shows how cheap these things are in quantity. By the way, I ha...

Very bold of you to take it all apart! How cheap was cheap? Thumb throttles do have three wires, Ground, Power. Signal. I take it you do not have one now, and the bike woks on pedal assist. If there is no existing throttle, you will probably have to wire the new throttle to your controller board. Th...

Doesn't the UrbanX carry about 5-6 pounds of battery on one side of the fork? That probably aggravates the twisting too.

Unless you programmed the LCD3 to have throttle on at all times, its default mode is that you won't have throttle until you take the bike out of PAS0 mode. Since you didn't install the PAS sensor, you probably didn't think to take it out of PAS 0. Try that on the way home. If this was the issue, you...

Per https://www.bafang-e.com/en/components/component/motor/rm-g060750dc.html , the G60 for a 20" fatbike is probably a 325 rpm motor, which works out to about 22 mph on a 22" diameter wheel. For $600 for the whole bike, I don't think you'll get the kind of battery that is able to sustain 22A for lon...

The battery management system (BMS) shuts off the battery when any of the internal cells goes below its minimum voltage limit. If those cells went too far down, it could be unsafe to revive them. Fire risk. FLX, for sure, would just scrap the battery rather than assume any product liability by tryin...

Are you still running that bike on a bunch of 36V4AH batteries. After a year, all five of mine are still quite useable. I only use them two at a time.

You got the footloose. Not for me.

http://www.fullycharged.com/Mando-Footloose-IM

rrccc01, your link don't work. Did you get a direct drive or geared motor? I have a 500W geared motor kit with SW900 and 22A controller from ebikeling. Can't ride it slow. Cadence sensor is like on/off switch. I also switched to 20A KT torque simulation controller and LCD3 display. With torque simul...

I would want a voltmeter and a wattmeter. Neither is expensive. In the USA, one national chain store gives these voltmeters away if you buy something else. They're good enough to see if your mains AC is live or if your battery has a charge. I have about four of them. https://www.ebay.com/itm/DT830B-...