Best Car Jump Starter Environmental Adaptability Why buy car jump starter from us? 1. when the car need emergency start because of battery power shortage, ordinary mobile power can not provide the enough high current car starts; 2. can be used as mobile power electronic devices 3. can be used as LED lights, lighting needs to provide multiple modes Second, environmental adaptability Standard Operating Temperature: -20 degrees +60 degrees ---- Optional Ultra-low temperature operating temperature: -40 ---- + 60 degrees Third, the large-capacity Standard two kinds of capacity 10000mAh, 12000mAh Fourth, safe and reliable Configuring multiple protection circuit to ensure product safety and reliability.