Use tips!(All charging treasures can refer to) The product has just been received. First turn on the flashlight to discharge, then charge the product for more than 4 hours, and then start the car, because the product contains virtual electricity This operation can prolong the service life of the product! Tips for daily maintenance: 1: The battery has a shelf life. Whether you use it or not, it is recommended to charge and discharge the battery once every 2-3 months. 2 When it is not used for a long time! Please keep 3 grids of power supply or more than 50% of power! (Tips: Remember to charge the battery once every 2-3 months when you are not using it. If the power supply is low or the storage of virtual power has an impact on the battery, proper maintenance will last longer~~ Before use, there is a small prompt [1] that the car cannot be started by continuous ignition/or the key cannot be turned, and the positive and negative poles of [2] can not be reversed after every 30 seconds of starting. The two clips cannot be short circuited. [3] Remove the clip within 30 seconds after succefully starting the car. Violation of the above three operations may cause the [fuse box] of the clip to burn out. Please pay attention to the operation method. Feature:Stable voltage, current, balance charge function.Cla A+ cell, safe and explosion protective.Upgrade 4 cell and start strongly. 400AStartingcurrent.800A Peak current.26800mAhLarge Capacity.Diesel 5.0L, gasoline 6.0Lcar can be used.Reverse connection protection.2 USB charging.Full power can be started 40 times.Limit temperature -20 ~ 60C.Intelligent Protection System. Input: 5V-2A Output: 5V-2.1A*2; 12V Jump StartNight emergency, Rescue lighting:1. Built-in glare lighting system.2.Long pre the middle button for 3 seconds.Pre again in burst mode.3. After turning on the flashlight,pre the switch again to become a flash,the switch is the distre mode.Note:When using the product, you should first turn on the flashlight to discharge, and then charge the product for more than 4 hours before starting the car, because the product contains virtual electricity This can prolong the service life of the product! Package List Car jump starter (Power bank) *1Protective clamps (Red=positive; Black=negative) *11 to 3 Charger cable *1English instructions *1Tool box *1