Smart battery flashing light, charging battery real-time display.<br> Fast charging, saving charging time and improving efficiency.<br> Over-current protection, leakage protection, full pulse, multiple protections.<br> Smart chips, , and welding chips all use smart electronic components.<br> The use of ABS flame-retardant shell, fire-resistant and strong, let you use more .<br> Automatically identify the positive and negative poles, and reverse the charging zero output.<br> Intelligent timing, automatic shutdown after full charge, to that the battery is overcharged.<br> Temperature compensation, high temperature in summer, automatic power off when over temperature.<br> Specifications<br> Type: 72V 20AH<br> Output Voltage: 72-88V<br> Output Current: 2.6 +/- 0.2A<br> Input Voltage: 200V-220V 50Hz<br> Battery Parameters: 6-DZM-20<br> Size: 18x8x6cm/7x3x2.4in<br> Colour: Black<br> Material: plastic<br> Package Contents:<br> 1 x Electric Vehicle Charger<br> Only the above package content, other products are not included.<br> Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.