You do you bro. Ultimately, we all have to make decisions that we’re comfortable with. Go w 16awg then. When soldering, be cautious and move quickly. Be especially careful with your pos terminals- one stray solder ball and you’ll have a dead short at the shoulder. Use lots of flux.
Good luck
Thanks for the advice, do you use some kind of thermal compound?
I’ll post an update when I’m done, I really appreciate all the help
One last question, how do you terminate the ends of the pack? Merge all wires into the xt90? Considering 4 wires come from all P groups
For testing, yes…inexpensive standard thermal paste.
For permanently mounting thermistors in a pack or device I use epoxy or silicone/RTV. I prefer 5 minute epoxy since I can place the thermistor and tape it down right away to hold it in place and then continue to work. The epoxy will cure under the tape.
With RTV you can’t cover it in tape for at least several hours since it need moisture in the air to cure. Be sure to use “neutral cure” or electronics silicone/RTV (without acetic acid) to avoid possible corrosion.
Draw a wiring diagram to help you sort that out. Here is the one I drew up for my 12s4p with Molicels. Doesn’t have to be complicated but will decrease the likelihood of error. FYI, I did not end up fusing the main terminal leads.
I’d encourage you to run your progress by this thread to get feedback as well. Never hurts.
Where would I place the temperature probe for an onboard battery capacity monitor? on the battery cell wall, or on the nickel where the current flows?
Cell wall.
Get your P45Bs for 7.50 kids.
Son of a gun…
Building an ebike pack, 16s12p. LG 14.4A cells = 172A peak draw.
Using the stock controller it would be pulling a max of 85A from the battery which is fine, but on an aftermarket controller that can pull a lot more, what would the limits be?
Im using full nickel rolls, 0.2mm x 100mm, cut into about 80mm wide by 125mm long strips covering the cell groups.
sold out
This is a good reference for specing out a pack. Looks like your nickel should handle anything your cells can throw at it.
Main leads and connector would have to be upgraded beyond esk8s standard 10awg/xt90 to use packs full potential safety.
Any idea of a number for a limit? as these controllers can pull like 400a and im wondering what the limit of the nickel would be if i used more powerful cells.
6awg and qs8 connector
The scale for .2 goes up linearly so add the 50/30mm together for rating.
Can always beef up the series connections with copper to pull more, but then youll probably be pushing the limits of the 6awg/qs8.
Doubt you’ll need to unless your talking full e-moto stuff.
Lol yeah that was from their old china supplier
It took me a second to realize this was a printed guide and not a battery with chicken pox
that looks familiar
Holy hell, it’s insane to me that someone was actually willing to sell something of that “quality”.