EV chargers- just playing around

Is a 110 volt EV charger that can add 40 miles in 10 minutes worth making?

Today you can buy 10kWh batteries that weigh 100 pounds and cost $2000.

Charge them with 110 volts AC in about 10 hours. Then use the stored charge to charge your EV 40 miles in 10 minutes.

If your average miles is 40 per day and you don’t have access to 220 volt circuits for L2 charging this might be a cool way to charge most of your needs and use public high speed charging for the rest.

Or for tow trucks, keep one in stock to assist the rare EV that runs out of charge.

At 100 pounds and with wheels, you could roll it to your EV.