Recent content by Golyo

Sparta ION m-gear

I have a used ebike with NiMH battery. After taking the battery apart I found a bad cell (0V) in the 20 cell battery, the rest is at 1.23V. What are the rules for changing one cell in a NiMH pack? There is no BMS so I guess the new one should be a higher capacity cell than the rest and I am...

I have two questions: 1. Does anyone have bad experiences buying from LLT power? https://www.lithiumbatterypcb.com/ 2. Would it be a problem to have 4 of these bms's next to each other? How easy it is to switch between them when trying to communicate with one and then the other and so on. Plan...

You will have both in and out elbows, otherwise you cannot cross them.

It turned out that it was all my fault, as I ordered a 72V display. Obviously the description of the item was quite misleading, but still I should have read it better. With the 36/48V display the system works like a charm.

Yes, that is my experience. Afterwards, I read several similar stories about Gearbest, you can do a search on Google, and will see them. I have no idea how PayPal hasn't kicked them out yet.

The above-mentioned lights are only 8$ now. http://www.aliexpress.com/item/DC12V-80V-20W-Black-LED-Headlight-Handlebar-Light-Waterproof-Lamp-Universal-for-Motorcycle-E-bike-for/32501138512.html?spm=2114.01010208.8.9.kdjnL6

I wouldn't recommend buying a box of matches from Gearbest. It is completely okay with them to not send you something, and to not tell you that they haven't sent it, and to not give back your money, just some credit that you can use on their site. edit: on the other hand nkon.nl is a brilliant...

Hot glue is a beautiful help. Switching the display to reverse PAS mode was also easy.

I did further experimenting, and with the voltage under 38V the whole system works perfectly. Just over 38V it produces cutouts. I am a beginner, but it screams of LVC. These two videos show the display after boot up with the battery just over and just under 38V. https://youtu.be/v4Imsnk6rG0...

This is what happens when I turn it on, and the battery is around 39.2V: https://youtu.be/yyuY73K0iSs This should show a cutout, unfortunately, the display is too dim to see anything: https://youtu.be/CLNyolJCOi0 I have another idea, and I would need someone to check their signal voltage. When...

That's how my setup shows the correct speed. When P2 was 0 it did not show speed without power, and other values just gave wrong speed values. I tried different C5 values, but it seems that it does not affect throttle, probably only works with PAS. C12=0 was experimental but, unfortunately, did...

It was only the speed sensor that I managed to make work. The cutouts persist. Looking at the pretty dim display, it seems it should not be low voltage protection (the battery meter shows a full battery). What other protection can completely turn off the display? I would really appreciate some...

In another thread, I found that a speed sensor is a must to avoid cutouts, so I installed it. After hours of changing settings, it is working. P2 (phase number) should be set to the correct number even if you have a speed sensor installed. Otherwise, it only works when the motor is under power...

The battery is perfect. Just checked the cells, and there is a 0.002V discrepancy between them.