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Oh my! If I had that level of manual ability I would stay well away from anything electrical... You can still build batteries that way I guess but you can also build one from components that make your life way easier: - cell holders, a glue gun is so 20th century - pre-cut nickel strips (with...

The welder is the miniA spot welder from Korea, it is powered by a high discharge 3S LiPo pack. I had a lot of other stuff on hand already. I will document the battery in my build thread in due course. It isn't an orthodox battery, I will take some flack...

That depends, I'm at 360€, shipping included, for a >15 Ah 12S battery. Including Welder and LiPo to make it work (I didn't have one on hand that size). If you count on building another battery (I am) and you divide the price of the welder by the number of batteries it can be cheaper. I could...

Oh come on Kirsten! We didn't get to the bit where "don't buy a light with a decent beam for the road, get one from China because it is cheap" and "my lumens are bigger than your lumens", "yes but yours are Chinese lumens..." ad nauseum.

I recommend. Contrary to what is written on the package they handle over 42v, I run mine at up to 50v with no overheating.

If you are going for a 25 Amp controller you might want to look at one of these: https://enerprof.de/en/ebike-batteries/softpacks/52v-14s-batteries/

I think they are direct drive, could be wrong.

Just the grin, they also make a version for trikes with axle one side only (left or right options) so you could have a 3WD...

Nobody needs a road car that can go that fast and the owner will be trusted to respect the road code. Pedelecs are physically limited, the rider isn't trusted to respect 25 kph cut off on his own. Kind of a double standard was my point. On my very short commute I average 22.7 kph. My top speed...

I would only need 15 Ah to do that distance (there and back), are you throttle only? In that case buy an electric moped, they have better range...

Mid motors are hard on batteries, you need one that can provide lots of current very quickly. That limits your choices. I agree with vfr400, if you want a light weight system hub motor is the way to go. Unfortunately all the major road bike manufacturers agree too...

Maybe you could have a referendum on pedelec speed limits? ... Frankly I would like the speed limit dropped but not the 250W nominative. Most hub motor winds limit top speed unrestricted to 27-33 kph. Mid drives depend on gearing but most peter out at around 45 kph. Then we could have a speed...

Tramadol?

KT lets you turn it down but it is still bright. Like you I am lying down and the screen will be between my feet in direct line of sight. If I find it too bright I will stick some tinted film on the screen - red or blue, not decided yet. Second expensive option is the new LCD-8 which has a...

Don't worry you are. 14-15 Amp peak controller is standard for 250W nominative motors and many motors have been running happily for years with them. A 250W nominative motor can handle 1 kW without issues. They don't like those power levels for long periods of time on very steep gradients. I...

Multistar is a 15C and the Turnigy is a 12C but I agree with you, the label is closer to reality. Note there is no charge cycle indication any more IIRC it was 300 cycles?

I'm not good at keeping stats... Looking back over my threads and HK bills: The Multistars were bought on sale in March 2016 so were just about 3 1/3 years old when they started failing. The Graphene on sale in September of the same year so they are 3 years old. In that time I have done over...

My favorite bike has lived in very strange places and it weighs well over 20 kg. Folded it is an unwieldy shape and hard to carry long distances (like 3 floors without a lift). What has stopped me using it since March? Work and 15% gradients just in front of my home (it doesn't have a motor yet...

Just a quick update after just over 2 years constant use. - Today I checked the packs with my battery medic before charging (I always check after) all cells were at 3.82v. Every single one on both bricks! One cell on the 4S brick dropped to 3.81v, the battery medic has very slight current draw...

Frame strength rules apply to steel, aluminium, carbon fibre, toothpaste, whatever you make a frame from... Has the Brompton frame had to be over engineered over the years? It is steel IIRC and is sold with an EU marking. What your chap really meant to say is that steel frames are often made by...