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Source: Hackaday

People Are Building Their Own Tesla Powerwalls Out Of Laptop Batteries

By Nicole Caldwell

Unwilling to cough up $8,000 for a 14-kWh Tesla Powerwall?

Then join a pack of industrious DIY-ers who have figured out ways to create their own home battery systems with three or four times the storage capacity of the Tesla Powerwall at a fraction of the cost.

All it takes are a few YouTube videos and a whole lot of discarded laptop batteries.

DIY culture is taking on Tesla. 

The alternative energy crowd has been experimenting with homemade, self-sufficiency for ages. Rocket mass heater stoves, wire-your-own solar setups, DIY air conditioners: The sky’s the limit when it comes to getting off-grid without the help of Big Brother.