Endless Sphere

Oh there are a lot of reasons for the formed opinions, but lets stick with just one. This forum thread is for this motor. A thread was created specifically for the modified firmware, yet no one is using it. Many people have complained and then quit this forum thread and maybe even the entire forum. ...

EndlessCadence wrote: ↑

Aug 25, 2018 2:02 pm

Thank you for the review of the firmware mod. It is nice to see the bike is not launching with pressure on the pedals. Perhaps eventually we may try it too after it is tested a bit. I am just now seeing how the original firmware works with the 15s battery.

Well we took another ride today, I guess we started out about 61.5v with the 15s battery. It is working perfectly. I have noticed a decent increase in both speed and power over the 14s battery. This may be due to several factors though, since the 15s battery has a 2p configuration (cells rated at 20...

I used the speed sensor extension cable. I have about 2 feet of wire between the plug and the stlink. Maybe that is why mine is so flaky!

Mmm my program cable doesn't work. I get an error in ST visual programmer that it can communicate. I installed my kt-lcd3 and connected it to the 8 pin connector of the motor. Then I connected my program cable to speedsensor cable of the motor. The cable is connected as below: program_cable_wiring2...

Just removed all the limitations from the open-source firmware and I got 120 max cadence at 10s and 128 max at 14s so yes it's possible you can get to 130 with 15s ;) In both cases tge motor was at max duty cycle and it makes sense that this increases with voltage Variables changed Erps overspeed i...

Would be good if you could validate the cadence. At 112 my legs were spinning pretty fast. Can't imagine 130. Yeah I don't know. I am using tire and gear calcs to come up with that, plus whatever tire size I set in the lcd (provided that is even correct). I really need a gps but I sold it with my c...

Ok well I tried 62v. I think it bucked on me for about a second but then took off running. I made 3 runs up and down my street and then measured voltage at 61.7v so it was at 62v. It was flying however I did not have fat little Cecil in the back this time. 14mph at 62v = 130 calculated cadence. My o...

Do you know what the cadence (rpm) limit is for the original firmware for the 52v motor? I assume I must be getting close to it now. I wish I could try the 62v today but it is already dark and my 20w china charger has got another 30 mins until the battery is charged up to 62v. Maybe I will try a qui...

Thank you Jbalat. There is not much I can do at the moment though, I already sold my soldering guns. Actually you would laugh if you saw how I wired the wires inside the battery. The battery has squeeze terminals for the plus and minus connections, I just stuffed the wires in backwards through them ...

John and Cecil you should use some 12awg silicon wire and gold bullet connectors that are soldered on. Check out hobby king The wires are 14awg. You do realize that the power leads on the motor are 16awg? Thus whatever battery you plug in will be running through 16awg wires before it reaches the mo...

In case anyone is interested here is our new "dirt cheap" battery which cost $50 total for all 3 new 20v5ah Harbor Freight Hercules batteries plus some wire and connectors. I bought them on ebay when the 20% coupon was going around. Inside there are 30 (15s2p) Samsung Inr18650-25r M cells rated at 2...

Hey dude, you were interested in my 15s battery test so I have some preliminary results for you. So far it looks very promising. I rec'd my small 21v 1a charger and charged my 3 batteries individually (takes forever to charge the batteries too). I just got back from a quick test run. I tried 61.1v ...

Tsdz2 is somewhat defective, the gears do not mesh properly and the nylon drive gear often gives out prematurely. The tsdz2 is somewhat powerful if you get the 52v 750w version. The bbs02 will have more power tha the tsdz2 and can handle higher amps and it appears much more reliable but it does not ...

I agree with you on this, however with me it look like half baked product. Your valuable time and material has helped make this product great but I don't know why the manufacturer wouldn't do this in the first place or at least have some decent firmware rather than expect people to flash and do the...

I believe it does work. Currently I don't have a cadence sensor mounted but will do that soon. Does the opensource firmware display cadence as well? It feels like the motor assists easily up to around 90-100 RPM, will get back to this with real figures soon. You could be right in that I experience ...

Such disappointment. Yes, 48v controller firmware cuts battery power out at 42-43v. However that is not "half" the capacity of the battery. You are using just about all the "safe" capacity. It is not good to drain you battery below 3v per cell and it can cause it irreparable harm to do so. A 48v ba...

I wonder if there is a way to build simple and small reflective mylar panel(s) to redirect some light from the outside of the panel onto the area with the shadow to compensate for the power loss when the shadow is present?

foto bms.jpg https://em3ev.com/shop/em3ev-52v-14s5p-jumbo-shark-ebike-battery/ I looked right past that (man is there a lot of info on those postings) - thanks! Another question for the masses - how much consumption are you seeing on the 52v 750w motors? Trying to figure out how much range I can ex...

Order placed! Decided it would be worth it to go 52v and future proof things a bit more. Did a quick google this morning on the tariffs and realized they were going into effect in 3 days! That was just the push I needed to pull the trigger. So pumped to be jumping in after over a year of intensive ...

Here is a video on replacing the blue gear, and it is done from the same side as the controller so it should be helpful. I think if you get to the point where he removes the gear you will have access to all the controller wires that you need. https://www.youtube.com/watch?v=CTbDKN2GzNE Note: He does...

Just to be clear ...(because there have been comments to the contrary on this ).. You are saying that even altering the settings in the firmware, you cannot change the amp limit on the controller ? Correct, I was unable to alter the amp limit of my controller by changing the 3rd set of numbers in t...

Also, TS released and withdrew it's own software and programming cable for the TSDZ2 once upon a time... If I can get them to give me that software, I'm sure it would be alot easier to just adapt that... tongshengprogrammingcable.jpg Time to sweet talk Tongsheng - this could be within reach I looke...

I have 48V- 500W TSDZ2 with VLCD-5 it is working well, but I like to add a thumb throttle. I bought a throttle which claims to be compatible. I have tried each of the 3 ports on the back of the display with no luck. The ports are three pin and the throttle plugs in but no functionality. Does any on...

Hi, Thanks, but I don't like to have the bad info out there! As for the high voltage cut/HVC, I am not sure... And remember, it's highly likely for the voltage to drop 1 or 2 due to sag on those little wires when any power goes through em, so you might be in luck . Especially if you have long wirin...