Can C-tag Batteries + Tinned Copper wire = No spot welding?

[dsami]

would that be applicable for a 48V 17.5 A battery?


Thinking to buy C-Tagged Batteries since I can't solder directly on the batteries nor do I have a Spot welder.
https://www.nkon.nl/tags

Solder 12-14 gauge tinned copper wire as bus bars instead of nickel strips since I don't have a trusted source for nickel strips and for their better electrical conductivity, heat tolerance and easy to solder compared nickel strips.
http://www.ebay.co.uk/itm/TINNED-CO...var=521345454905&_trksid=p2055119.m1438.l2649

 

[Punx0r]

This is exactly what I did with tagged cells from NKON. It works well, but it's a bit more work than spot welding and the overall pack height ends up a little greater. You can keep the tab length very short by laying the copper wire onto the cell (use a thermal insulating stick on the negative terminal) and folding the tab around it.

 

[dsami]

Ya Punx0r, more work and around 5-7% more expensive, but att least I know what's in my pack, and have FUN .
And yes was planning to use a piece of insulating laminate (Like the ones we use on countertops) as a heat barrier under the bus bar until i finish soldering.
May I ask you from where did you buy yr BMS,,, still couldn't find a reliable source.

 

[Punx0r]

Ah, I meant to say "sticker" before. I just used the centres (that are normally thrown away) of the cardboard ring-shaped insulators normally used on the tops of the cells.

My BMS was from AliExpress, as there was nowhere else to find an 18S one. For 48V (12S, 13S) I would try ebay and look for ones for sale from within your country. Unfortunately it's a bit like "try your luck" when buying a BMS.

 

[dsami]

Ah, I meant to say "sticker" before. ........

Ahaaa, you mean this https://eu.nkon.nl/rechargeable/18650-size/isolatie-papier-18650.html
ya that was my plan too.

BMS in Sweden/Europe is no different than Aliexpress or Ebay, as u said it's "try your luck"

Thanks for your reply and tips.