Features: Electronic differential, relying on advanced driving algorithms and intelligent control, flexible operation, strong controllability. "S-curve" acceleration and deceleration, soft start instant, making the electric wheelchair comfortable and safe driving experience in any road conditions. Non-sensing brushless motor speed closed-loop control, when the brake is uphill, it can detect the electromagnetic brake when the motor speed is 0, it will not slide back to prevent the wheelchair from turning backwards. Over-current, over-voltage, overload, overheating, under-voltage and other protection features ensure that electric wheelchairs travel more reliably and safely. Automatically identify whether the motor connector and the electromagnetic brake connector are connected properly, and can distinguish the reverse connection and wrong connection between the two.Electronic energy braking, closed loop current in the braking process, braking distance of short cut braking force evenly. Smart charging protection, which can identify whether the charger is connected, and has protected the reverse connection of the charging connector. Joystick controller for electric wheelchair Fault self-detection and give tips for consumer use and after-sales maintenance. Specification: Voltage: 24V DC Operating Voltage: 20V - 30V DC Output current: 0 - 45A recharging current: 6A max control method: Hall Rocker Omnidirectional Control Braking method: Electronic energy brake and electromagnetic brake Display mode: LED Instruction waterproof level: IPX5 Electronic equipment Operating temperature: -25? Protective function: Over-current, under-voltage, reverse power supply, motor wire fall off, high temperature, stall, charge protection Note: -The size is measured by hands, please allow minor error of measurement. Photo color might be a little different from the actual product due to color display of different monitors. 1pc x of Folding Electric Wheelchair JOYSTICK for Power Wheelchair.