product information<br> The charger comes with a connector: DC 5.5*2.5MM connection interface is also suitable for 5.5*2.1MM size.<br> Includes 4 types of connectors: 3P-XLR, RCA, DC 8mm, 3P-GX16, 3P-GX12<br> Indicator status: green light is load, red light is charging, green light is full.<br> Input: 100-240VAC<br> Output: 42V 2A<br> Colour: Black<br> Maximum power supply: 84W<br> Working temperature, humidity, -10°C~+50°C, 20%~90%RH<br> Storage temperature, temperature, -10°C~+60°C, 20%~90% RH<br> <br>Multiple security protection<br> Short circuit protection, over current protection, over voltage protection, over temperature protection, over charge protection, over discharge protection, cycle protection.<br> <br>5 Features to Extend Battery Life<br><br> 1. A variety of wiring options (XLR, microphone, round hole, DC hole, square hole...)<br> 2. Adopt advanced chip, intelligent protection, more secure<br> 3. Intelligent and efficient lithium battery charger<br> 4. Built-in cooling fan, effectively avoid the phenomenon of charging and heating<br> 5. The shell is made of high quality flame retardant ABS material<br> <br>Charger use and maintenance:<br> 1. This product is suitable for lithium-ion batteries. Please pay attention to whether the charging interface and the charger connector match, the positive and negative poles must match.<br> 2. When charging, connect the battery first, and then connect the AC power supply; after fully charged, please cut off the AC power supply, and then pull out the battery plug. If you unplug the battery first when charging, especially when the charging current is large (the red light is on), it is easy to damage the charger.<br> 3. Do not carry the charger with the car to prevent vibration<br> 4. Please use the charger in a dry place, and it is strictly forbidden to get wet and rain.