CONNECTOR & COMPATIBILITY: 3-prong Inline female connector; Scooter battery charger for lead acid battery only; Charges the battery for the Razor e100, e125, and e150 electric motors . UL APPROVED: UL Listed; Short circuit and over voltage protection. Input: AC 100-120V 50/60Hz, Output: 24V 600mA (0.6A), 6FT length power cord. LED INDICATION LIGHT DISPLAY: Red light on when charging; Green light on when fully charged or Not in charge. NOTE: This battery charger is designed for lead acid battery only; If your battery has been used for over 12 months or unused for 2-3 months, your battery might be broken. In this situation, the charger LED will show green – no charging as battery is dead. You can test our charger with another device, or check your battery with another charger; If you have any questions, please let us know, and we will do our best to answer them in a timely and helpful manner. Model number QL-09002-B2400600H and QL-09002B-B2400600H are the same.