Re: [electricboats] LifePo4 build questions

You can go thinner on the buss bars.  Even just 1/8" x 1" is 0.125 square inches, and equal in cross-sectional area to roughly 000 AWG (good for 300 amps in Copper).

But that's for Copper, and Aluminum is roughly 60% as conductive as Copper (depending on how it's alloyed).  Closer to pure Aluminum conducts better than heavily alloyed, so something like Aluminum 1100 works well in my experience:

https://www.mcmaster.com/1100-aluminum/material~1100-aluminum/thickness~1-8/width~1/

Those bars have nice rounded sides, and should be easier to machine than 7075.

I had some cell arrive too (yesterday) . . . sixteen 105Ah Gotion LFP (2.06kg/per cell).  Will make a 5.376kWh pack with them, as either a backup battery or combined with the main battery to get up to ~150 minutes of full-power run time.

_._,_._,_

---

Groups.io Links:

You receive all messages sent to this group.

View/Reply Online (#31951) | Reply To Group | Reply To Sender | Mute This Topic | New Topic
Your Subscription | Contact Group Owner | Unsubscribe [newarmyguitar24@gmail.com]

_._,_._,_