I hear what you're saying, but doesn't that also include the wait for cells to come from china?
I am doing my own research into this, but not trying to reinvent the wheel.
All prices USD:
EVE MB31 314Ah 3.2V cells, 16 of them, at $155 each, is $2,472. I crave the larger ones to get 16.1 kWh per DIY battery. Add $300 for BMS with comms to victron gear, conductors, lugs, and an outdoor case, and you're at $2,772 USD. These are matched and tested cells with welded studs, includes bus bars, and US stock. That is 17 cents per watt hour.
The BMS would be JBD BMS or maybe JK BMS - not sure exactly which one yet - have not decided.
if I wanted to do the same things with 304Ah cells for 15.6 kWh, it would be $125 piece, $1996 for 16, add $300, and come to $2296. About $500 less, but also smaller capacity, but price per watt hour is 15 cents.
Zero warrantee on anything I've just mentioned.
You go up to the Riuxu outdoor battery from there in price, then up to the EG4 PowerPro in price, then the Lion Energy Sanctuary is the top price. All these are over 17 cents per watt hour - closer to 25 cents - but all 3 include 10 year warrantee.
I'm seeing that Ducan sells a massive battery for $1700 for 30 kWh:
Note: This link is for sending inquiries only. We'll provide a complete quotation, including DDP sea shipping costs, within 24 hours.For any online orders paid via DDP sea shipping, we'll double-check and inform you if any extra DDP shipping costs are required. We apologize for any inconvenience cau
www.docanpower.com
But could be 4-6 months. Still that is less than anything I've mentioned above.