Surpassed focus on providing high quality power products and excellent customer service,Looking forward to your support and your positive affirmation. Dust cover equipped for each battery port, which can anti-dust and prolong its service life. Support the batteries and the remote controller charging at the same time. USB port can also be used for charging a cellphone or tablet PC, Great for driving outdoor trips. Specifications: Input: 12V-16V Output: 8.8V 3A*2 USB output: 5V 2A*2 Operating Temperature: 0-40 Celsius degree Charge Time: 3A high current output, only 100 minutes fully charging 2pcs batteries Compatible for : DJI Mavic 3 Drone Intelligent Flight Battery and Remote Controller Package Included: 1 x 4 in 1 Rapid Intelligent Car Battery Charger For DJI Mavic 3 Note: USB Cord was not included