Should I use the NOCO GB40 in cold weather?

Yes, the NOCO GB40 can be used in cold weather, but there are some precautions to consider. Cold temperatures can affect battery performance, so it's best to keep the jump starter warm before use. The device is rated for use in temperatures as low as -4°F (-20°C), but optimal performance is achieved at warmer temperatures. Users have reported successful jump-starts even in frigid conditions after warming the unit slightly. Pro tip: Store it in the passenger compartment of your vehicle instead of the trunk to keep it warmer. However, if you live in an extremely cold climate, you might want to consider a jump starter specifically designed for cold weather conditions.