Description:<br> INPUT SPEC:AC100-240V 50/60HZ<br> charging voltage: 42V<br> charging current: 2A<br> Charging mode: CC-CV<br> charge indicator:Red-Charging Green-Full Charged<br> Charger port: XLR Male / Microphone Head<br> product size:132*57*32MM<br> Cable length: 39.4 In / 100 CM<br> security protection: OVP/OCP/ Overload protection/ Short-circuit protection<br> Packing:<br> 42v 2a battery charger*1<br> US plug cable*1<br> Use and maintenance of the charger :<br> 1. When charging, first connector to the battery, then connect to AC; after full, cut off AC, then pull the battery plug. <br>If you pull the battery plug first while charging, especially when the charging current is large (red light), <br>it is very easy to damage the charger.<br> 2. Please do not run out of battery power, then charge . Otherwise the your battery cannot be protected or even damaged.<br> 3. long-term shallow discharge battery, about 3 months, for a deep discharge, is the so-called re-lighting, <br>which is conducive to the activation of long-term immobile material in the deep part of the battery. <br>Luminous means that riding the controller battery undervoltage protection action.<br> 4. If your battery has not been used for a long time (2-3 months), please charge the battery before using the battery. <br>Make sure your battery is not broken.<br> 5.Please use the charger in a dry place.<br> 6.When you do not use the charger, do not always connect the power supply.<br> Tangspower has always devoted itself to providing products with excellent quality for the end-users.<br> If you are not satisfied with our product, let us know and you will be offered a full refund or replacement. <br>