1.Built-in safety features to keep from damaging the unit: Reverse -charge Protection; Short-Circuit Protection; Over-temperature Protection; Reverse Polarity Protection; Over-discharge Protection; Over-charge Protection
2. Suitable for GOOLOO GP01, GP03 and all EC5 connector car jump starter, such as Anker dbpower and so on
3. GOOLOO offer 18-Month Warranty and friendly customer service