Widely applications: Designed for all 12V or 24V dry battery, water battery, lead acid, maintenance-free battery, etc.automatic stop when fully charged, 5 stage charging realize automatic pulse repair function, which is able to diagnose and repair battery problems and extend battery lifespan Two Charging mode & 5-stage charging: Motorcycle mode(MOTO) is suitable for 6AH to 20AH batteries; Car mode(AUTO) is suitable for 20AH to 200AH batteries; one button change enter 2 modes Auto-recognition 12V/24V: Built-in intelligent chip is able to identify 12V or 24V battery automatically once connected, Clear LED bar screen display the charging rate,easy to understand the charging