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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.