I got 2 Model 3 battery packs not far away from me that are salvaged from damaged cars, the price is very reasonable if you calculate it... it would cost about €0,55/per cell.
However the way the battery is constructed it is not possible to reuse the 4 "packs" as a whole and it is...
Since 1,5 years I'm collecting our electricity consumption with an ABB B23 meter > modbus > ESP8266 > mqtt > node-red > MySQL & Graphite > Grafana.
So I'm very well aware of our habits :-) Total yearly usage is 4300kWh @ 1200.
The average base load of the house is about 200w, with the new...
No far from where I live a company specialized in recycling IT and electronics stuff sells "laptop batteries" at 10/kg.
As the origin or stateis not know this seems not realistic:
An 8-cell packs weighs +/-450g so you have +/- 20 cells for 10.
At a 35% attrition rate for let's say 1800mAh+one...