USB/DC dual interface waterproof battery box, 12.6V 26650/18650 battery box AZ9690 Description£º**** This 18650 waterproof battery box is mainly optimized on the basis of the traditional 18650, /26650 12.6V lithium battery pack. After optimization, there are the following advantages:**** 1. This battery box has XP7 waterproof function.**** 2. There is no need to spot welding the battery, which greatly reduces the internal resistance of the battery, improves the battery discharge performance, and effectively improves the battery life.**** 3. Easy to use, using 3 18650/26650 lithium batteries.**** 4. With DC connector input and output voltage of 12.6V. The USB connector has an output voltage of 5V and a current of 2A, and it has the function of charging mobile phones. (The voltage of battery input and output has an error of ¡À0.2V)**** 5. With power display function. (3LED indicator light)**** Dimensions: 95X64X64mm**** Battery specification: 18650*3/26650*3Product specifications:**** 1. Input voltage: 12.6V**** 2. Overcharge protection voltage: 12.6V**** 3. Over-discharge protection voltage: 8.4V**** 4. Over-discharge protection current: 9v**** 5. Standby current: 80ua**** 6. USB output standard voltage: 5V¡À0.2V**** 7. USB maximum output: 2000maNote: The first time you insert the battery or turn on and reinsert the battery, you need to connect a 12.6V charger and charge for 3-5 seconds to activate**** (The battery needs to be aligned with the positive and negative poles, otherwise the battery box will be burned out)**** 12.6V battery boxTwo interfaces, 12.6v can output input, 5v output, can be put into 18650/26650 as a charger, can be used as a portable battery box, charger, power for bicycle lights, USB lights, 12.6v LED lights, etc.