Super Soco TC Max - Battery Disassembly & Rebuild?

[@danielcharlescini]

Great to see another video! Thanks again for the wiring diagram. I have added reverse utilising the redundant headlight on/off switch. Reverse power can only go down to 25% but it's ok as long as you are careful. If you are going to the trouble of rebuilding the battery it may be worthwhile to investigate higher capacity cells.

[@thecapacitator8137]

Oh well done! How did you wire it in to the controller? Getting through the glue on the connector must have been a real task.

[@danielcharlescini]

@@thecapacitator8137 Paperclip, 1.5mm drill bit then inserted the crimped pin. Next step is to add a button and connect up the boost function.

[@thecapacitator8137]

@@danielcharlescini Good idea. I would have probably tried to pull all the glue off and made a mess. What crimp pins did you use? I might have a go some time.

[@rodintoulouse3054]

Great to see you back. Another impressive show of your abilities and ingenuity. I wish I could say something about what you did, but it went right over my head 😅

[@thecapacitator8137]

I'm sure you got the general idea. Thanks for dropping in.

[@chaver28]

im excited to see your next video about the TC Max :)

[@EEisen]

I'VE JUST WATCHED ALL OF YOUR VIDEOS, they are all great, keep up the good work my friend!

[@thecapacitator8137]

Thank you!

[@bupitz34]

WOW ... great work! Thanks for sharing!

[@timkarsten8610]

Great video! Keep 'em coming!

[@jasond.valentine5931]

Ah man, new video! Love this guy!!

[@adil1087]

very good build quality

[@fire_stick]

guess the voltage requirements are related to the chemistry of the cells, the supplier should be able to provide a spec sheet. Also when splitting the cells it may be a good idea to use to isopropanol to help replace the glue/bonding, you could test this in some glue left on the cells to see if it helps solidify with the isopropanol . great video as usual.

[@thecapacitator8137]

They did provide a spec sheet. It just contradicts what it says on the cells. Good idea, alcohol would definitely have helped. On the couple that leaked the electrolyte helped loosen the bond.

[@RossJ777]

man this is 🤯, very impressive, so this cell you've picked up is the same size, more powerful but less capacity? very interesting. I dont think I'd want any less than the original 45ah but theres definitely a market out there for re-building these batteries

[@thecapacitator8137]

Well, they claim 10C continuous but the voltage sag wasn't wonderful. It would make a lighter pack by about 3.7kg so maybe good for an off road bike or a nip to the shops bike. The cells are relatively cheap if you ship by sea.

[@RossJ777]

@@thecapacitator8137 I think one of the main take aways is how impressive the super soco cells are!

[@thecapacitator8137]

@@RossJ777 They're very good quality cells. The new cells I bought are 25% smaller and lighter but have 33% less capacity. So weight for weight the standard cells have 8% more capacity. That's a meaningful amount.

[@雪崩之下沒有一片雪花]

​@@thecapacitator8137永遠不要忽視中國製電池的虛標問題，通常他們提供的電容量連參考價值都沒有！

[@vladimirsamas3097]

Dont forget to use a 3S bls when charging!!!!

[@AaronDwyer]

Good breakdown. How many bad cells did you find? I guess you could hunt for and harvest another super soco battery to get same cells.

[@thecapacitator8137]

All the cells were bad. It was neglected and left connected to a bike for over a year so it was completely discharged. It would be nice if I could use original cells. They're really good. It would be 3.7kg lighter with the cells I tested though.

[@rthoulouze]

Did you test the old cells? I thought they could be resuscitated when charged individually or something to that effect.

[@thecapacitator8137]

They were absolutely flat. If they could have been revived they would be way down on capacity.

[@petefoster4557]

I like your new QRP battery. 😂

[@thecapacitator8137]

Hiya mate. Well I couldn't find any QRO ones. 🤷‍♂

[@UTA1330]

Dear friend, what is the size between screws on bms? Further thanks

[@elduderino7767]

what about lithium ion phosphate, i guess it depends what you're after, performance/range vs longevity

[@thecapacitator8137]

I think the nominal voltage would be too low. You would need to put more cells in the pack to get the voltage up. Tricky when space is so limited.

[@elduderino7767]

@@thecapacitator8137 too early to sodium ion but maybe in a couple more generations should be a lot cheaper when manufactured at scale these type of vehicles might last a surprisingly long time

[@thecapacitator8137]

@@elduderino7767 Yes there's a lot to look forward to in battery technology. It's not difficult to swap batteries on these bikes so there's every chance we could get batteries with more range and keep the bikes going indefinitely.

[@highlander8198]

I’m in Canada and would love to be able to use these batteries (I have two) over the winter months as emergency power. Would it be as simple as getting a 72VDC -> 120VAC inverter? Would really appreciate your thoughts.

[@thecapacitator8137]

It only works if you have the battery connected to the bike. kzbin.info/www/bejne/mYrIeYCpntadfs0si=JsxqtIiz652uQMfv

[@Rykko79]

I deeply discharged my original battery to 60V and I am planning to replace the cells with new ones. My main goal is to increase the capacity which would help me a lot with my daily 70 km driving. Would it be possible to change this battery plates with a 18650 cells and use the original case and BMS?

[@thecapacitator8137]

I don't think you would have enough space to fit the amount of cells required to increase the capacity. I built a whole new battery using 18650's. kzbin.info/www/bejne/mKHWknp-oredgdEsi=DagA4A1-PsTWGuQY

[@Rykko79]

@@thecapacitator8137 I was thinking of using new 5000 mAh 18650 cells, it needs proper measurements and caluclations

[@keyem4504]

Not sure if I would use these cells if you don't have access to the BMS. 3.65V in the old cells suggest a LiFePo4 chemistry, while 3.8 is a mystery to me. The BMS is probably programmed to the parameters of the old cells, whatever these might be, while the new cells might have different valid operating conditions. If you can re-program the BMS is worth a try. If not, there is a certain risk involved that you'll operate the new cells out of spec.

[@thecapacitator8137]

I was thinking of using a different BMS so I can set the parameters. All of the the 3.8V cells I've seen have been lithium polymer.

[@keyem4504]

@@thecapacitator8137 Good idea. Great project, by the way. Can't wait to see the result. 👍

[@hiroshigibu1363]

Hi my friend, can i made a battery for my tc wanderer too?

[@Arpepu]

Hi, any alternative for the BMS and communication module?

[@thecapacitator8137]

I haven't tried it myself but I know somebody who has and it's working for them... s.click.aliexpress.com/e/_DmgRj2x

[@Arpepu]

@@thecapacitator8137 this BMS Is not working alone with TC MAX controller. It does need a communication module or crack module.

[@thecapacitator8137]

@@Arpepu Oh dear, I thought it did. The one I used before is not available any more. Please let me know if you find one.

[@Arpepu]

@@thecapacitator8137 kzbin.info/www/bejne/bZPLdJKDp6eUi9U

[@zaprodk]

Just because the cells gets delivered charged to 3.7V, it has nothing to do with the nominal voltage where the capacity is calculated. These cells could be HVLi though, but using them as standard Li-Ion chemistry it will just give them a longer lifespan as they are never fully charged. HVLi charges to 4.35V/cell.