Limskey Mini Portable 12V Car Battery Jump Starter Auto Jumper Engine Power Bank Description: Brand new and high quality. High efficient jump starter for emergency vehicles starting/cranking. Capable for starting most 12V engines under 2.0L petrol Multifunctional car emergency jump starter with high capacity battery to charge your electronic devices,like mobile phones, MP3, MP4, MP5,,digital cameras, so on. Advanced intelligent circuit protection keeps control on circuitry when charging your batteries for safety issues and protects the life of your battery. LED light for emergency warning and lighting can support 3 different lighting modes: torch, strobe and SOS mode. Over current protection; Short circuit protection; Overload protection; Over-voltage protection; Over-charge protection; Fuse protection ATTENTION: 1. Don't jump start any engine that exceed the maximum displacement the unit can bear, or it will cause serous damages to the unit. 2. Your jump starter will perform best when its battery is fully charged. If less than 25% charged, it may not be able to start your engine. 3. Don't connect the positive and negative polarity together when it's power on. 3. Don't connect the positive and negative polarity together when it's power on. Don't crank the engine for more than 4 seconds. Allow the jump starter to cool down for at least 30 seconds after each jump-start. 4. Read the instruction carefully before using.