Search results

I recently got hold on a load of somewhat older-new 21700 cells and started building a 14s80p battery. It's a mix of different builds I've seen here, the general busbar design comes from Wolfs' build It is using 3A glassfuses soldered to the copper tab spotwelded on the aluminum postive side...

Hi all, 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...