The SIP 1000A 12v capacitor booster is an innovative handheld portable device designed to discharge a high current boost needed to start a larger car or van battery. Offering powerful performance in a compact unit, the 1000A capacitor booster is ideal as a safeguard for home users which can be easily stored or a quick and easy solution for small automotive workshops. Starts up to 5L petrol engines or 3L diesel engines. How does it work? By connecting the positive/negative clamps from the capacitor unit to the terminals of a flat battery, the capacitor cell absorbs the remaining voltage in around 90 seconds. A single touch 'on' button initiates power transfer and a digital display indicates the unit is preparing then ready to deliver boosting current to the vehicle. Applications and uses: Perfect for larger cars and vans, home or small automotive workshop use, and starting up to 5L petrol engines or 3L diesel engines. Lightweight capacitor energy cell: Offers reliable and powerful performance when you need it most and without the weight, inefficiency or deterioration of an internal battery. 90-second preparation ready time for fast boosting capability: This no-maintenance innovation is ready-for-use in as little as 90 seconds and its easy-to-use functionality means you'll feel in control when delivering its power. Robust, portable and compact design: Stores easily in a vehicle glovebox or boot for use in emergencies. SIP two-year standard silver warranty.