Tesla’s new Powerwall batteries are huge, expensive, and powerful. The largest has a capacity of 10 kWh—roughly 1,000 times more than the battery in your phone. These batteries are gigantic. But how much energy is that really, in terms you can fathom?All the numbers come from this absolutely lovely visualization by GE, except where noted. All of the examples here are mutually exclusive, assuming you’re using the Powerwall’s full charge for just one thing. From a full charge, Tesla’s 10kWh Powerwall can…charge your iPhone 952 times*run your laptop for 200 hoursblend 4,000 margaritasrun 30 loads of laundry (without drying)dry 4 loads of laundry (assuming you washed them by hand)brew 30 pots of coffeerun a window air conditioner for 10 hoursrun a space heater for more than 6.5 hourskeep an electric furnace on for half an hourrun an old tube-style TV for 130 hours, an LCD for 50, or a plasma for 30microwave 300 Hot Pocketskeep your fridge on for 50 hourskeep your Wi-Fi going for 60 daysmake 360 pieces of toast in a toaster (or 1,000 in a toaster oven)power one 60-watt incandescent lightbulb for 170 hours or a CFL 60-watt equivalent for 560 hoursMore practically, if your doing multiple things at once like a normal human being, the Powerwall could probably run your whole home for about eight hours, based on stats from the Energy Information Agency, which say the average home uses somewhere around 30kWh per day. But if you’re going to pick up one of these $3,500 bad boys for a more specific kind of security, you can sleep soundly knowing that should the end of the world come tomorrow, you’ll have at least 300 more Hot Pockets worth of power on your wall.*Assuming that charging an iPhone 6 once costs 10.5 watt-hours of electricity. According to GE, you could charge a cell phone over 2,000 times with 10kWh of electricity, but that calculation appears to be for a flip phone and a smartphone would need more juice.
