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So that is a 36V 4Ah battery pack? What is the maximum sustainable peak current of that and the maximum peak current? Do you have any issues with it and did you have to set the display to limit current output from the battery? What sort of range do you get. Looks a lovely clean ebike conversion.

I've had a google out of curiosity but there is very little information about this hub motor out there, no pinouts, no information on who manufactured it, no details on what sort of controller. There is some information regarding the battery pack being engineered by Williams in the UK but no...

I actually got my Liitokala battery pack in about 2-3 weeks I think and strangely it was sent from a UK address. It was from a trading estate in somewhere like Solihull. I assumed it was bulk shipped with many other battery packs and then individual sent from within the UK. I've not tested...

If the controller is inside the housing with the motor in a Yamaha/Brose/Shimano/Bosch etc then it can drop voltage to give huge current, so I personally don't see why a battery delivering 36V at 22A can't be delivering close to 12V at 70A inside the motor housing from the controller because...

Even on a bike where the throttle isn't linear it still gives instant control of power for hills if that is the only time you use it. Is that a common issue on ebikes poor throttle control? Is it mismatched throttle to the controller or the controller not handling throttles very well? I don't...

I bought a pack based on these cells; https://www.aliexpress.com/item/32845153871.html It was this pack below which at the time was £80 with free postage (plus VAT). I've not used this in a build yet but it took 7-8hrs to charge with a 2A charger so based on that I feel they are genuine...

No question mid-drive is the hill climbing king for legal 250W ebikes although it has motors that pushes the legality of such bikes i.e. Bosch using close to 800W at its peak torque output. Some low power mid-drives 40-60Nm aren't that great though, there are power losses through the chain and...

It really depends on how you use it, the whole point of the throttle is it gives you precise linear control only at the points you want it, you might want it all the time or you might only use it for the steepest hills it gives you that flexibility. How does the average person with a throttle...

Cheap glasses sold in the UK by normal retailers offer full protection as a legal requirement of being sold, they have to pass a certification process. So even £1 poundland sunglasses offer proper protection to the eye, i.e. block out UV light as well as visible light. However personal imports...

The bottom bracket I linked to was just for standard bikes not fat bikes but just an indication of how competitively priced M-Wave products can be and yet they seem decently well made. I think it was 113mm or 115mm the one I got, something like that and that was the full axle length. Sounds like...

That is a more reasonable price than I was expecting for such a specialist bottom bracket. I bought this M-Wave bottom bracket to fit into a Carlton road bike that has damaged threads, its the type that screws into itself rather than the bottom bracket of the frame so is universal with italian...

To be honest now that I re-read what I've written 12V at 80A wouldn't be possible as the cable I think is only capable of about 40A max from controller to hub motor. It won't scale as much as I've stated it will stay within safe parameter's but controllers do work by lowering voltage and...

That could well be true but the rule of 10Wh per kilometre I'm sure is meant more as a rough guide to pedelec type ebikes in Europe and the UK and as an approximate figure. The issue with throttle only is then the weight of the rider massively effects range because a heavy rider often has strong...

Normal nominal wattage for a UK/EU is 250W which at 36V gives you 7A (250 shared by 36) so a normal controller will provide that current to be legal but may peak considerably higher. Voltage dictates speed but current is torque which is needed to maintain that speed of 16.9mph or 22.55mph so...

Another question about these sameport type batteries if they are charged through the discharge connections and have over-charge protection are these actually fully safe with regen? I.e. if you have regen enabled the batteries will prevent regen immediately. You don't have to sort of ride 5 miles...

Yes I my plan may not go as well as intended but I'm planning to current restrict the controller which is a lowish current controller anyway which is what many cheaper commercial ebikes do using fairly generic low end Chinese batteries. The ebike below is 115Wh getting on half the capacity of...

I must admit I went with the LCD4, it looks most like a professional pre-built ebike display. Looks really nice. Also looks most robust and less likely to break in a fall. I do quite like the look of the colour display though.

Interestingly that is actually a Dutch standard for speed pedelecs, ebikes that assist beyond 25km/h rather than a European wide certification standard. Also the Dutch famously have a low takeup of cycling helmets despite their low cycling accident rate which they put down to their superior...

Yes you are probably right. They mention the cells used for the 6000mAh and 6800mAh packs but for the 4400mAh and 5200mAh packs they just state ; The new 4400mAh / 5200mAh Chinese-made battery assembly. Product features: 10A discharge current, real capacity, long use time and long life! You...

Are these settings held in the LCD display or are they written to the controller itself perhaps some sort of rewritable memory? I.e. if you had two ebikes and one LCD panel can you program two ebike controllers with it? I'm used to violamart kits without displays where the controller is set a...