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48 Volt 1000 Watt Rear Hub Ebike Conversion
#1
I started this build a couple of weeks ago after finding this bike on local council rubbish collection pile.



My first ebike is a 36 volt 250 Watt Bafang/ hybrid conversion, which is awesome...but

There was always a plan to build something with a bit more ⚽️s but was not going to be anytime soon... until I found this bike  Smile

I have access to a good amount of high drain cells, so that takes care of the most expensive component of the build, the battery.

After some research I settled on this kit

https://rover.ebay.com/rover/0/0/0?mpre=...2103030688

On receiving the kit, first impressions were good, especially for the price!

First jobs were to swap tyre and tube to motor rim, I made sure to use rim tape as there is a fair amount of added weight in the rear hub.

The build is almost complete now. I'll guage interest in this thread before taking the time to share the entire build
Korishan likes this post
                                                Choose LiFe  Wink

                      May all your batteries be fully charged and perfectly balanced  Cool
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#2
Dang, that's a nice bike. Dont look cheap, unless ya stole it second hand Tongue
Proceed with caution. Knowledge is Power! Literally! Cool 
Knowledge is Power; Absolute Knowledge is Absolutely Shocking!
Certified 18650 Cell Reclamation Technician

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#3
(02-22-2018, 03:58 AM)Korishan Wrote: Dang, that's a nice bike.  Dont look cheap, unless ya stole it second hand  Tongue

Do you mean could it have been stolen and dumped on the rubbish pile?

It is a very nice bike, I'm guessing 5-700 AU when it was new.

The stranger part is it appears to have hardly been ridden at all. No wear on the pedals or tyres at all!
It had 2 flat tyres and handle bars were loose when I found it. It looked very out of place on a rubbish pile!

It was funny actually, when I  spotted it and pulled over, a moment later a guy pulled over on the other side of the road. We both walked up to it and couldn't believe how good it was. I got to it first though   Wink
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                      May all your batteries be fully charged and perfectly balanced  Cool
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#4
Don't recognize the brand, probably more a bike made from chinesium for sale at 249 at a discounter or something? But still, looks as good as new, makes no sense to throw it away.
With 1000W this is going to be a hell of a ride for sure. If it is indeed made from chinesium I would take a close look at its structural integrity before trying to put 1000W down on the road.
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#5
(02-22-2018, 08:22 PM)DarkRaven Wrote: Don't recognize the brand, probably more a bike made from chinesium for sale at 249 at a discounter or something? But still, looks as good as new, makes no sense to throw it away.
With 1000W this is going to be a hell of a ride for sure. If it is indeed made from chinesium I would take a close look at its structural integrity before trying to put 1000W down on the road.

There isn't a lot of web info on Apollo, mainly references to AU and NZ markets. They've been sold here for 30 years and have a decent rep.
So no, not your 249 crapper. Made in China I'm sure but so is are my Giant bikes.

Yes, I can confirm 1000 watt is a great ride  Wink
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                      May all your batteries be fully charged and perfectly balanced  Cool
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#6
And here's the rest of the build in a nutshell, well It's a video but you get the idea   Tongue

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                      May all your batteries be fully charged and perfectly balanced  Cool
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#7
I've got the same conversion kit for my mountain bike build.

Can I ask for details how you did the batteries?

I need to know where to buy the Case, BMS and charger from. I'm looking at this but so confused about all the options.

I also don't have a spot welder, so trying to work out how to configure the battery pack using samsung 30q cells...
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#8
Indeed a good cell the INR18650-25R. Have you tested their capacity at a high amp rate? I've been fooled by power tool cells before because I haven't thought about it at the time. At a low current they look like new but once you try to get some juice out of them they just collapse.
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#9
(03-07-2018, 01:46 PM)DarkRaven Wrote: Indeed a good cell the INR18650-25R. Have you tested their capacity at a high amp rate? I've been fooled by power tool cells before because I haven't thought about it at the time. At a low current they look like new but once you try to get some juice out of them they just collapse.

The cells are from packs with failed bms..most less than 1 year old  Wink

(03-07-2018, 12:51 PM)zag2me Wrote: I've got the same conversion kit for my mountain bike build.

Can I ask for details how you did the batteries?

I need to know where to buy the Case, BMS and charger from. I'm looking at this but so confused about all the options.

I also don't have a spot welder, so trying to work out how to configure the battery pack using samsung 30q cells...
The hailong case you linked is a good way to go. I have that on my other bike.
There are some youtube vids already on making a battery using that case.

I hope to make a vid on my next battery build soon and also on how I'm charging using a 12v LiFe charger and boost converter.

This is the bms I used with my 30Q battery.

Free shipping 51.8V BMS 14S BMS PCM used for 51.8 V lithium ion battery pack 51.8V 14S 30A BMS / PCM With balance function

 http://s.aliexpress.com/yuqMrMFz?fromSns=
I might try one with the bluetooth/ android app next

If you haven't already check out some youtube channels like ebikeschool.com 

Happy to help if you have any other questions  Smile
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#10
Thanks BMS ordered!

So I've got my battery set out, how do I fuse it and where do the bus bars connect? Any kind of diagram or help would be much appreciated. How wide are the bus bars?

This is what I have so far.



Also i'm interested where to get a canvas bike frame bag from that is wide enough to hold the battery.
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