3 ms·
it's not bottom of the barrel. You can build a 16kWh lifepo4 for ~1800$: https://www.mobile-solarpower.com/server-rack-lifepo4.html https://www.mobile-solarpow
by mittensc 8mo ago
it's not bottom of the barrel.
You can build a 16kWh lifepo4 for ~1800$: https://www.mobile-solarpower.com/server-rack-lifepo4.html https://www.mobile-solarpower.com/server-rack-lifepo4.html
That gives you some experience so you'll be able to maintain it as well if any cell goes bad.
- dzhiurgis 8mo agoLook I DIY'd my battery too. Thats not comparable to buying high end solution.
- mittensc 8mo agoI'm curious what you mean by high end solution and how that's different. In my mind it's similar to premade computers vs build your own. Tesla would be something like Lenovo/dell here. They would just grab the same cells or cheaper and some other off the shelf components and sell them to you at massive markup. And you get situations like Battleborn where they couldnt even do the connections right and would start a fire by default... Will build my own as well this summer so really curious whats the best way to do this
- dzhiurgis 8mo agoIt's more like buying ozempic from india and mixing it yourself vs paying for real one
- metalman 8mo agoI also have built my own offgrid sytems, but sodium is here now, and lithium is not competitive in any metric that counts in a static instalation especialy cost per kw/hr, and will very likely get insured to death as it will never be as safe. My next system upgrade will be aimed at home power/heat/hot water, shop, and car charging.Possibly with the car charging bieng a discreet system that works at a higher voltage and is all DC.
- mittensc 8mo agoI understood LiFePo4 is pretty safe and innert. Sodium I saw some reviews where it expands a lot during charging and long term safety is not as conclusive Why do you see sodium as an easier choice? The main fire risk with lifepo4 is the connectors, wires, bms and shut off being suitable for high amp. That would be a risk with anything if not built properly, even without batteries if you wire your house with wrong awg wires
- metalman 8mo agolithium?, in a word, dendrites then if you can stay under long enough, the look into electrolights, this is all uni 101 stuff, but it is very clear that lithium is dead for static applications, and lower performance mobile other words, cost, supply chain strongly favor sodium over lithium
- mittensc 8mo agowell, thanks, there goes the home battery idea :)
- dzhiurgis 8mo agoSodium is not here yet at all. CATL barely started (if at all) volume production. They haven’t even published specs. Even when they ramp it up, it will be like 0.1% of total lfp output. So no, sodium is nowhere near.
- deleted 8mo ago[deleted]