1. Utility model patent M504018, Application for a patent:108202204 2. Best protection charging voltage 14.0V_15.0V 3. Best waterproof digital voltmeter 4. Best racing-grade horsepower 5. Best starting and acceleration the motorcycle 6. Pass the endurance test (water-proof, high temperature resistant) 7. Remove the battery after starting, the engine will not stall and can accelerate normally. 8. Give an external racing-grade electrical energy line.