How many tool batteries are needed to equal one Tesla Power Wall? The biggest tool battery I have is the 18 volt ones for my skill saw. I think it is 5 AH. So let's say 90 watt hours.
SO I can build a "Power Wall" if only I have 150 of these batteries. They cost $120 each So I could build my own power wall for $18,000 or I could buy one from Tesla for $6,700. But if I build my own I'd need more than just 150 batteries. I'd need something like 150 chargers and a whopping big inverter to turn all that DC into AC. So let's say $20K Even if I get the batteries for 1/2 price the cost is to high You will never beat Tesla's price. Even if you build a factory and mass produce them you can't beat their scale of operations, They make 3 million lithium cells per day in Nevada. They control the entire process from raw materials up. On Tue, May 14, 2019 at 10:58 PM Gregg Eshelman via Emc-users < emc-users@lists.sourceforge.net> wrote: > One of these days I'm expecting to see someone build a power wall style > installation that uses lithium ion power tool batteries plugged into > sockets. Imagine a closet full of Ryobi ONE+ 18 volt batteries. Buy them > used, old ones on clearance etc. -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
