Before connecting your device, please check the voltage at which you purchased our UPS and the input voltage of your device. If the voltage is not consistent, it may damage your device.The USB adapter we are paired with is not suitable for all devices with USB charging interfaces. It is necessary to ensure that the input voltage of your device is the same as the output voltage of our UPS. Our UPS is not suitable for 5V devices, such as Blink sync module, Wyze V3, etc. Therefore, before purchasing a UPS, please check the input voltage of the device.When you receive the product, the UPS battery is low. Please charge it for more than 6 hours. It is best to fully charge the UPS separately before use. The fully charged UPS state is that all four blue indicator lights are on and the red indicator lights are off.Please use our matching adapter or your device's adapter to reach 2A or higher.If there is a power outage and the power is restored, your device does not automatically recover and you need to reconnect to our UPS. Capacity: 12V/2A 9000mAh Output: DC 12V /2A Max. Size: 99*76*24 mm Material: Plastic Please Note: Please check your device voltage and current before purchasing. Our UPS Battery Backup is 12V/2A, your equipment should be used within 12V/2A. Instructions: Check the parameters of routers and other equipment. It supports 0-2A current. Just select the corresponding voltage. The voltage is generally 5V/9V/12V (the current device is 12V) Products Include UPS DC 5.5*2.1 DC 5.5*2.5 DC 4.0*1.7 DC 3.5*1.35 USB female socket 1 * 12V/2A UPS Battery Backup 1 * 2A Adapter 4 * DC 1 * Manual If one day, there is a sudden power outage in your home, will your home monitor or router not work properly? During this power outage, your important pictures will not be monitored, and you will not be able to use your electronic devices because there is no network. Our ups batteries can be used while charging. When your home is out of power, ups will supply power to your equipment, so that your equipment can operate normally in the event of a power outage. It can support charging and use at the same time. When the power is suddenly cut off, it will continue to supply power to your device without adjustment. We have prepared 4 DC output interfaces of different specifications for you, plus the UPS itself, there are a total of 5 DC output interfaces, there is always one suitable for your equipment. Wide range of applications: more output modes, compatible with multiple devices. 9000 mAh large capacity, 9 hours of battery life, continuous power failure. 6 hours of fast charging, ups can be used while charging and connecting to devices. UPS Size：99*76*24 mm Equivalent to the size of a mobile phone. You can place it anywhere, it is light in weight, small in size and does not take up space. We have matched a variety of DC output ports for you to suit your various equipment. UPS DC 5.5*2.1 DC 5.5*2.5 DC 4.0*1.7 DC 3.5*1.35 USB female socket