Car Jump Starter, POVWAY 700A Peak 8000mAh 12V Lithium Car Battery Booster (Up to 4.0L Gas or 2.0L Diesel Engine), Auto Portable Power Pack with USB Quick Charge, Built-in LED Light

What is the box? 1 x 8000mAh Jump Starter 1 x Battery Clamp Cable 1 x Micro-USB Cable 1 x User Manual ATTENTION 1. Please read the instruction carefully and strictly follow the instruction before using the jump starter. Any wrong operation may cause damage to the jump starter or cannot get the car started. 2. Don't jump start any engine that exceed the maximum displacement the unit can bear, or it will cause damages to the unit. battery jump starter 3. Your jump starter will perform best when its battery is fully charged. If less than 50% charged, it may not be able to start your engine. 4. Don't connect the positive and negative polarity together when it's power on. Don't crank the engine for more than 3 seconds. Allow the jump starter to cool down for at least 30 seconds after each jump-start.