Search results

The problem could be anywhere or everywhere in your electric system, so we have to use a bit of reasoning, judgement and analysis to get to the cause. Without additional information, there is virtually no chance of solving your issue. Electric problems very rarely just appear by chance, so you...

Your 48v battery might be fine with a normal medium sized geared hub motor conversion kit. If you get a 36v motor and run it at 48v, you get 30% more speed and power without stressing the motor. The only problem is you need to buy a separate 48v controller and control panel because the 36v motor...

It's always like that. Just tell them what you want.

How much nickel strip are you using on a battery...

You need to get one with good quality cells, like Samsung 30Q. If you can cruise at around 23 mph, you might get a range as high as 2 miles per amp-hour, but stop-start riding or anything off-road will cut that right down, so a 14Ah battery could get you around 28 miles. The problem is that...

Yes, there are several different arrangements for connecting the BMS sense wires. The BMS should be marked B0, B1, B2,B3, etc. You must measure the voltage at each of those points to the cell-pack's ground when connected. Make sure B0 is zero volts, B1 is approx 4v and so on all the way to B13...

Unfortunately, I have to throw a few spanners in the works of your plan. Firstly, do you know how old that battery is and what it was used for, or is it new? Iunless you're lucky, there's a fair chance that it'll be quite under-rated for that kit. Even if it is powerful enough, it would give...

Looks like a good bike for the money. Das Kit stuff is normally quite good. The only thing is he normally reverses all the connectors, so you have to buy spare parts through him. 48v makes a big difference to power and hill-climbing compared with 36v. It makes hub-motors viable for hilly areas...

It'll be a race with lithium sulphide offering 500Wh/kg by the end of the year - again! https://oxisenergy.com/products/ Wisper were going to do some work with them. How did that work out?

To me, it just doesn’t make sense. You can't spotweld it because the tin/lead coating has no mechanical srength and very low fatigue resistance, so is very likely to break from vibration. Copper is the same. Also, it has to be coated to stop it from corroding, but that's not a problem if you...

It seems that you know a lot about making ebike batteries then. I can't understand why you're asking if you know all the answers. Have you tried welding with copper? If you think it's so good try it and tell us all about it, then go and get the nickel wire. The same applies to soldering the...

Solar panels have tinned pads to which you solder the tinned bus wire. It's a completely diferent system and won't work for 18650s. For 18650s in an ebike battery you need pure nickel strips, which you weld to them.

I think it's always better to wire your lights to the battery with their own switch. You can find light switches on Ebay. That's simple and reliable. https://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=light+switch+for+ebike&_sacat=0

You won't be able to weld it because it's tinned, and you shouldn't solder directly to 18650s because the heat can damage them.

Nearly all the head units on electric bikes are sophisticated devices. They have a microcontroller in them that performs several important functions ant it communicates with the microcontrollerm in the motor's control board. On most bikes, they work more or less independently and their power...

That connector will work OK for a LED back light. If you choose one with low power, you can add a low power front light too. If you look inside the controller, you'll most likely see that the transistor that switches the wire is tiny. On some controllers, when that transister blows, it takes...

I've been repairing electric bikes for a long time. I have never had to replace a controller because it got drowned when the compartment wasn't sealed, though I have had to deal with corrosion on connectors on some bikes that had been in service for a long time. I've had to replace four...

The three pin yellow one is for a sensor, so the three pins will be 5v, signal and ground. The battery connector is two pins, which will be battery positive and ground. You can therefore use a meter set to beep on continuity to test all combinations until you find the two grounds, which will...

The controller is quite safe in that compartment. Water can get in, which makes the bottom wet, but it can drain straight back out, so it doesn’t get into the connectors. Every time I repair a bike with a drowned controller, it's because the owner tried to seal that compartment, which still let...

It's purpose is to cut the motor when you change gear to stop crunching them. I never played eith the settings, but I would have assumed that the 50mS is the dwell time that the motor is switched off after the cable stops moving, but from what you're saying, it seems to be that the setting is...