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I asked myself the same question and I find it purely academical. In practice you will find a very few batteries available on the market. I don't see any major differences between batteries with 18650 and 21700 cells. After all they use the same technology and the only difference is size of the...

Andy told me they ship motors set to 16A as far as I remember. TSDZ8 has 23A controller, so there is a lot of room above 16A. I don't know if you can alter it as I don't have battery yet. I expect 16A is more than I need really.

Battery in pannier bag is a really bad idea (also extremely expensive). If you want very powerful and legal motor, buy from Woosh. He is selling relabeled 750W motors.

So this guy crashed his bike, sustained a fracture to his ankle and because of that they caught him. Not really an achievement to brag about.

Quite likely, but who cares? I need a bigger shed anyway ;) IMO when storing battery in the shed it is more important to protect battery from moisture than shed from fire.

2000°C

Sounds like a decent torque wrench substitute :)

Unfortunately tools provided by Tongsheng are not very impressive. For that I might need my own gizmo. Two bolts and longer handle should do the trick. Do you think it might be worth to add a drop...

How about voltage? I have seen somewhere that 48V is the limit. Would that make 48V batteries illegal (as they can be charged above 48V)? Or 48V limit is set on battery nominal voltage?

Theoretically it should. I don't have any problems with gear changing on TSDZ2B, but it is installed on step through bike. MTB is a different story, so Bafang gear change sensor might be something to consider.

This guy had BBS02B before. Interestingly he says Bafang gear sensor works on TSDZ8.

TSDZ8: TSDZ2B:

Yes and it is very easy when battery is attached to base (not on bike yet) and power switch is on. Just bad design.

TSDZ2B and TSDZ8 brackets are almost the same. Just TZDZ8 is a little bigger. I hope it will hold. If not I will send it all back to WOOSH ...or I will make them to send me gizmo like yours. ;)

It is added there as extra measure. TSDZ8 don't have this extra bracket and it is expected to stay in place. One way or another your solution won't hurt for sure.

48V is legal in UK. I'm not sure though what 48V. Nominal or maximum. Best to ask Flecc for clarification. Can you elaborate? I don't see any significant differences between batteries using 18650 and 21700 cells.

Do you think all this effort was necessary? Theoretically TSDZ2B should be OK without extra support. I was wondering what this extra hole in bracket is for. Now I know :)

Why your battery is illegal? In what way?

No... I don't think so. Really? I never seen anything like it before. ...but I admit I have seen very few. Sadly no keys.

As it has been pointed out above any bike can have throttle.