News for hackers. Stuff that matters.

A comment on An open-source flow battery kit. Parent comment

Re:An open-source flow battery kit by avhon1 on Wednesday August 14, 2024 @02:22AM (#41243151)
PowerWalls use NMC cells. And the majority of "diy powerwall" builds are reclaimed 18650 cells.
[ Parent | on HN ]
Re:An open-source flow battery kit by rootusrootus on Wednesday August 14, 2024 @10:45AM (#41246717)
There's been a rumor for a while that Powerwall 3 is LFP, but I don't think anyone has actual confirmation on that.

I've seen occasional 18650 builds for DIY powerwalls but the vast majority are using prismatic LFP cells. Way easier to wire up, cheaper (unless you have a secret source for surplus 18650s), and minimal fire risk.

[ Parent | on HN ]