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TC upgrade - step by step

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arjan_1980
Posts: 36
(@arjan_1980)
Eminent Member
Joined: 3 months ago

Yes i added a second battery connected in parallel with the stock one, i placed the connections in the bottom below the battery tray, so controller has m6 eyes, bolted the original cable and the new cable for the second battery in parallel on these connections, the second battery has a maxi fuse holder which i placed on top of the battery lock, holds a 50 amp fuse. 

When you do this setup make sure you independant charge both batteries to full, if one is not full it will draw a very high current from the full one, after charging you can leave them both connected and use the charging connector on the bike.

Also a very big plus is the regeneration function, i have set these at 10 procent on release throttle, and 45 procent when applying a brake signal. Works really well, so the front brake will be assisted with the ebrake. Also charges the battery during every braking manouvre. 

When the weather permits i will make a video with my gopro. 

 

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kosac11
(@kosac11)
Joined: 3 months ago

Active Member
Posts: 9

@arjan_1980 I hardly wait for your video 🙂 . Your solution is cheapest ... I just want to see acceleration and top speed.

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arjan_1980
(@arjan_1980)
Joined: 3 months ago

Eminent Member
Posts: 36

@kosac11

Accelaration is really good, top speed is the same as when you delimit the original controller, the plus point for this will be that the bike stays legal. 

If you need more then the voltage needs to be raised by adding another pack. 

For me its doing what it should do with more fun 🙂

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kosac11
(@kosac11)
Joined: 3 months ago

Active Member
Posts: 9

@arjan_1980 I'm looking to buy another battery so I've talked to a few battery experts ... the way you connected the batteries will drastically reduce your battery life. Batteries of different types, internal resistance or different ages must not be connected in parallel.
I just wanted to let you know 🙂

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arjan_1980
(@arjan_1980)
Joined: 3 months ago

Eminent Member
Posts: 36

@kosac11

I bought two stronger 35ah niu batteries, those types have panasonic cells and all of the same type. 

I will be selling my original super soco battery. 

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arjan_1980
Posts: 36
(@arjan_1980)
Eminent Member
Joined: 3 months ago
IMG 20210521 1620030
IMG 20210521 1619462
IMG 20210521 1619561
IMG 20210521 1619502
IMG 20210521 1609560
IMG 20210521 1620267
IMG 20210521 1609398
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yetisbey
(@yetisbey)
Joined: 1 year ago

Active Member
Posts: 10

@arjan_1980
This looks very nice, can you share links to the parts that you bought if you don't mind?

I want to do the same for my TC.

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arjan_1980
(@arjan_1980)
Joined: 3 months ago

Eminent Member
Posts: 36

@yetisbey

I used a kelly kls72118s controller, all the parts needed are in the box. 

I bought a niu 60v 29ah battery second hand.

And some soldering skills, wires and heat shrink, the basic electric thinkering stuff.

If you need a controller, i have a extra kelly controller new in box. I am from holland.

Regards arjan

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yetisbey
(@yetisbey)
Joined: 1 year ago

Active Member
Posts: 10

@arjan_1980

Hi again, I already sent you a Pm. Thank you!

 

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Teasher
Posts: 15
(@teasher)
Active Member
Joined: 2 years ago

https://youtu.be/I90f2cxPY8o My new battary)

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mk2r
Posts: 17
 mk2r
(@mk2r)
Active Member
Joined: 2 months ago

I only find that battery in holland, is this the only place it's being sold? i think it derives from the super soco CPX scooter, atleast from what i find on MCN

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arjan_1980
(@arjan_1980)
Joined: 3 months ago

Eminent Member
Posts: 36

@mk2r

I got rid of those 43ah batteries, the bms is also restricted to 50amp like the soco ts battery. Now i use the niu battery next to the original soco battery. 

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mk2r
 mk2r
(@mk2r)
Joined: 2 months ago

Active Member
Posts: 17

@arjan_1980

Damn, i would have loved to take that battery apart and test the cells, if they would be genuine panasonic cells u could just have changed the bms, they're good for 10A per cell, so at a 9P config you're good for 90A continues current flow at max. hope the niu battery works fine for u, i don't know what bms it uses thou. 
btw if you find a second super soco bms or whatever bms and get 2 identical, u could probably run them in paralell to get the double amount of current, works with daly bms at least, but it's more expensive than buying the bigger bms. however if you already have a bms, it would be cheaper to get a second one that is identical. just a though, slightly risky but still a possible solution 

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arjan_1980
Posts: 36
(@arjan_1980)
Eminent Member
Joined: 3 months ago

Did a test drive today and i am pretty pleased with the results, constant speed of 60km. The regen braking is really good, just tip the front brake lever and the bike stops pretty quick on the electronic brake.

IMG 20210527 2100426
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kosac11
(@kosac11)
Joined: 3 months ago

Active Member
Posts: 9

@arjan_1980 what about moving uphill? Looks better? More powerful ?

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arjan_1980
(@arjan_1980)
Joined: 3 months ago

Eminent Member
Posts: 36

@kosac11

Way stronger, I can't test uphill drives as I live in holland, most flatest country in the world, but looking at the increased acceleration rate I am pretty sure it beats a lot of scooters. A big plus when driving in the mountains with the kelly controller is that the extra energy used for climbing will be regained when regenerating downhill. So the range will increase a lot with this feature, when i let go of the throttle it will regen brake for 10 procent, like letting a normal bike brake on the engine, but now charging the batteries when doing this.

You need a extra battery off course to use the full potential of the controller, those niu batteries are plenty availible overhere for around 200 euro. 

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