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Does Powerwall 3 work indoors or outdoors?

The good news is both!  Powerwall 3 is safe in the rain thanks to it’s IP67 rating.  The innovative cell level heating system keeps the battery warm, allowing operation from -20°C up to 50°C.

Beware of outdoor installations:  Studies show the most efficient temperature for Lithium Iron Phosphate batteries is highest at room temperature.  For outdoor installations, bear in mind you might loose a handful of units (kWh) each year to keep the battery warm enough to perform well when the outside temperature drops below freezing.

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