Two issues fitting Bafang BBS02B kit, help please.

[Encantador]

Following on from other threads I have now recieved the kit and started fitting it to my Trek Hybrid.

First is that for some reason the motor connection does not just plug into the battery. I assume that the wire has to be joined to the two white plugs which are attached to the motor. Is there a simple way of doing this, ideally without soldering?













The other issue is that the two bolts holding the battery to the frame are both in the bottom third of the battery. The battery is a 48v 17.5Ah so quite large. It does not feel safe only being held on so low down with two thirds of the battery unsupported. Are there any straps etc that might help. There is no way to thread cable ties through the base plate?

Thanks

Steve

 

[Andy230262]

Hi I had the same problem. The top holes on the battery rack didn’t line up with the water bottle holes. I used the two holes in the metal part of the battery rack. I have done about 300 miles mostly off road and it’s all been good. I have seen people who have used u shaped channel over the down tube which then gives you a flat surface for the battery. I could find any aluminium channel big enough.

 

[Asinrutee]

I used heavy duty Battery mounts that I found on eBay they worked well search for
Heavy Duty Ebike battery downtube mount / bottle cage bolt mount

 

[Andy230262]

I used heavy duty Battery mounts that I found on eBay they worked well search for
Heavy Duty Ebike battery downtube mount / bottle cage bolt mount

Do you have a link ? Thanks

 

[Asinrutee]

If you put the following in the search field it will bring them up, “Heavy Duty Ebike battery downtube mount / bottle cage bolt mount”

 

[guerney]

These don't mention if the plastic used to 3D print them is biodegradable, which would be a bad choice of material for a bike - you don't want battery frame mounts to rot off:

Pardon our interruption...

Heavy Duty Ebike battery downtube mount / bottle cage bolt mount | eBay

Got a nice new ebike kit only to discover the mounts on your bike are in the wrong place?. Blocked by a brake cable?. Aren't there at all?. The battery fits in the triangle but doesn't have the room to slide out of its dock?.

www.ebay.co.uk

 

[guerney]

Best ask the seller what those are made of - PLA is supposed to be a bit brittle, ABS might be better for that sort of application?

Is PLA filament actually biodegradable? - 3Dnatives

There is a common belief that PLA filament is more sustainable than other materials. Where does this assumption come from? And how sustainable is PLA really

www.3dnatives.com

 

[1boris]

Double Bob

Double Bob and Hose Clamps for Secure Mounting of Large Hailong-03 Downtube Batteries. Also Available on Amazon for US customers

ebikes.ca

 

[guerney]

Also (EU):

Battery Holder Bottle Bob

With this Bottle Bobs you can secure your Downtube and Water Bottle Batterie to frames without eyelets Helps when installing downtube and waterbottle batteries…

fasterbikes.eu

Previous discussion:

Searching mounting-plate to secure battery to downtube with hose clamps

I'm looking for an alternative to Grin's Triple Bob downtube hose clamp battery mount with UK/EU availability, since shipping fees from Canada to England are 33USD. https://www.ebikes.ca/shop/electric-bicycle-parts/battery-accessories/triple-bob.html# Last week my bike fell over and the...

www.pedelecs.co.uk

 

[1boris]

GRIN Bottle Bob Battery Attachment

If there are no eyelets on your frame, the Bottle Bob allows you to easily attach your battery to the frame triangle. The Bottle Bob comes with two…

www.ebike-solutions.com

 

[1boris]

From Germany

 

[guerney]

From Germany

They don't seem to ship to the uk - I've just registered and there's no UK option

GRIN Bottle Bob Battery Attachment

If there are no eyelets on your frame, the Bottle Bob allows you to easily attach your battery to the frame triangle. The Bottle Bob comes with two…

www.ebike-solutions.com

 

[guerney]

Correction: The delivery option is "vereinigtes königreich" - uk, yes they do ship to the uk

= €51.63

There's also a triple version:

GRIN Bottle Bob Battery Attachment

If there are no eyelets on your frame, the Bottle Bob allows you to easily attach your battery to the frame triangle. The Bottle Bob comes with two…

www.ebike-solutions.com