max output of 20W and a max input of 18W. Continuous use at -40?, and its available capacity is up to 70% at -20?. Equipped with the PI heating system to ensure that the battery can work a an appropriate temperature for reducing the loss of power. Carbon fiber confined structure also guarantees the thermal insulation in low temperature environments. Preheating function with no power consumption/charging protection/heating.Low temperature accessories included: insulation carrying bag/USB-C to USB-C charging cable. Unibody shell construction without splicing to achieve optimal protection. 1.5m impact resistant, IPX5 rated.