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There's still reason for hope. Measure the battery voltage on the charge socket, not the output terminals. If it's a 5.5mm jack charge socket, put your red probe on the main positive output terminal and the black on the blade inside the charge jack socket being very careful not to short the...

Low light flashing means that there's a higher current than there should be. Check that the motor connector is pusshed in all the way to the marked line, not just in tight.

Shoul've used Google. You would have saved time and money.

No it's a spacer to keep the anti-rotation washer clear of the gears

What I said is that that you wouldn't get a 50A 5000mAh battery for less than £2. These cells are roughly equivalent in size, price, weight and performance to a pair of other branded 2500mAh cells, so noy a lot of advantage except for the convenience in welding up a pack with fewer welds and...

Hmmm! I know who he/she is. He/she's just been reading the forum, but was too ashamed to announce himself/herself. Weird!

Series is no problem. Just watch the low voltage. In theory, the BMS should cut-off the battery if the voltage goes too low, but I wouldn't rely on that.

1. Yes if it's a freewhel, not a freehub. 2. No 3. Yes. don't forget to test direction before fixing everything. 4. One Hiden wire brake sensor 5. Depends how much you want to spend. Get whatever used one you can find on Ebay that looks good. make sure that the adaptor is side mount if it cones...

You didn't show the thing that I asked for, which is the only thing I really need to know. What pins are in that motor connector? It looks like a brushed motor, but I need to be certain before pronouncing judgement. Why can't you guys ever just give us what we ask for, so that we can help you...

Did you try using Google?

I bought 10 to test, as I need a 7S 5Ah battery of a tiny low power fold-up bike I have. They were £28, then it added £7 shipping, then £7 tax, so they ebded up at £42...

I think they have on Endless-sphere. Search for TSDZ2 external controller. Remember that some people like to use throttle only, in which case a KT is a waste. You'd have to think of a way to get a pedal sensor signal, or you could use a thumb throttle activated by chain tension with a bit of...

I meant what's his forum name?

That doesn't sound right at all. Most throttles are 5v unless it's a potentiometer type. Red, black and white are very common colours for throttle wires. Always red is the 5v, black is ground and white is signal. If you connected it incorrectly, with the signal wire to the supply (normally5v)...

Who is he then?

I used to go to a motorbike rally every year in Germany. I met a guy there who was a Moto Guzzi afficionado. He'd had them all his life and could give every reason why they were the best bike in the world. He was so convincing that I was thinking of trading in my Honda VFR750 that I had at that...

No. Let's take a step back. Please describe your exact problem. if it's that the display sitches off, there can be lots of different reasons. Please give details of the circumstances in which it goes off. is it when you're parked up, goimg up a hill, after you've done 5 miles or what? The more...

Why would you want to fit a front motor to a nice bike like that when you can fit a rear one?

I haven't checked out those cells yet, but I think you should do some proper research on them. There's no way in the world that you can get a 5000mAh 50A battery for less than £2, otherwise every ebike in the world would be using them instead of none of them. See what they say on the...

You're getting amps and amp-hours mixed up. You can have as many amp-hours as you want with whatever system you want. It only affects how far you can go, not the power. 30mph takes requires 1000w of output power or 1300w of input power, which at 48v is about 30 amps. If you use 30 amps, your...