This SPI3 12 volts 3 amp battery charger is a fully automatic and microprocessor-controlled battery charger with 9 stage charging that charges your vehicle battery 3 times faster than traditional chargers. The patented speed charge technology ensures that the battery is charged as fast and safely as possible. The charger comes with an easy-to-read scrolling digital display that provides step by step instructions to properly jump start your battery. The charger is energy efficient and extends the life of your battery. The quick-connect harness can attach either connector into place in seconds. The SPi 3 battery charger comes with Next-generation In Lithium-ion technology. It is suitable for all 12-volt power sport and automotive batteries can also charge lead-acid batteries.