Looking for advice on 48v battery

[Peter.Bridge]

Yep - the legislation refers to the rated power of the motor not the actual power. If you restrict it to 15.5 mph you may get away with a police check, but they would legally have the right to seize it

That site has an interesting 48V 250W Geared Hub motor with a 48V 17A controller - that is going to be very powerful - wonder if it has 250W stamped on it and what the winding speed of the motor is

48V 250W Electric Bike Conversion Kit - Rear Hub Motor

Transform your standard bike into a high-performance e-bike with our top-rated electric bike conversion kits. Designed for easy installation, these kits include a powerful electric bike motor that ensures faster commutes and extended rides. Perfect for all cyclists, our electric bicycle...

greenlance.co.uk

 

[Benjahmin]

Agreed, 1500w motor is illegal. No if's, buts or maybe's. Paired with a 45A controller you are building a motor bike which, unless you register it, fit a number plate, insure it, have the relavant licence and wear a motorcycle helmet, will be illegal no matter what you do to it.

 

[Waspy]

That site has an interesting 48V 250W Geared Hub motor with a 48V 17A controller - that is going to be very powerful - wonder if it has 250W stamped on it and what the winding speed of the motor is

I would be very wary now of buying any e-bike or conversion kit without the appropriate labels/stickers.

In this (15 second) clip, the police sergeant inspects what looks like a legal Hitway BK15 (36v 250w) with no dinner plate plate motor, gaffa taped batteries etc.

Reading from his crib sheet, the sergeant says there is no labelling to indicate the maximum assist speed or the power of the motor, therefore it's getting seized.

So, get labelled up folks.

 

[thelarkbox]

If you get stopped you will loose the bike and BATTERY!

Imho Your best bet is to pull the motor check the dates and pray your within the return window.

While up until recently police stop/checks have been rare, but it appears there is a growing trend for demonstration of police doing something these days - see the seizures thread in here and the increase in posts recently.. -One copper in a utube interview suggested the 'lack of police interest' so far has been during an 'Educational phase' where the public should become aware of whats a go and whats a no go.. And Now they are entering the policing phase...

The Direct Drive 'dinner plate' motors can be spotted a mile off and could be a copper magnet.


What need/requirement led you to opt for a 1000w motor? chances are with a little forethought a completely legal and within the regs system could be put together that can satisfy whatever requirements you have.. after all no restrictions on amps

 

[saneagle]

I have also purchased the remote speed restriction with the kit.

That was a complete waste of money. Your motor makes the bike illegal. Restricting it to 15mph makes no difference. It will still be seized by the police if they see it.

 

[David989]

Yep - the legislation refers to the rated power of the motor not the actual power. If you restrict it to 15.5 mph you may get away with a police check, but they would legally have the right to seize it

That site has an interesting 48V 250W Geared Hub motor with a 48V 17A controller - that is going to be very powerful - wonder if it has 250W stamped on it and what the winding speed of the motor is

48V 250W Electric Bike Conversion Kit - Rear Hub Motor

Transform your standard bike into a high-performance e-bike with our top-rated electric bike conversion kits. Designed for easy installation, these kits include a powerful electric bike motor that ensures faster commutes and extended rides. Perfect for all cyclists, our electric bicycle...

greenlance.co.uk

I have spoken to Greenlance and i have requested to switch to 250W motor With 17A Controller.

I kept the lighting system and the UKC1 display. The motor is labelled as 250W Motor so it will be road legal.

What i have decided is to keep the 2 motors. I decided to fully build an offroad bike with the 1500W motor.

Will share how that goes!

 

[Nealh]

Offroad will still be illegal unless it is land where no public have access to.