The Wagan iBoost Car Jump Starter and Power Bank is a compact and portable device designed to boost weak 12-volt car batteries, as well as function as a power bank for electronic devices. Key Features: Car Jump Starter: Boosts a weak 12V car battery to help start the engine. Power Bank: Features USB ports for charging smartphones, tablets, and other USB-powered devices. Portable and Safe: Pocket-sized and weighs less than a pound, making it easy to carry and store in your car. Built-in Lithium-ion Battery: Uses a rechargeable 2600mAh lithium-ion battery. Multi-Protection: Includes built-in safety features such as overcharge, over-voltage, short circuit, and reverse polarity protection to ensure safe use.