Mains-independent, without internal battery for vehicles with 12 V electrical system - Supercapacitors use the residual voltage (from 5V) of the vehicle battery for charging (150-200 sec.) and start the engine.Bypass" mode (for on-board voltage below 8V) for starting when the battery is deeply discharged - "Glow" mode (preheating) for starting a diesel engine in cold weather - No loss of power even at 10000 fps no loss of power even when used 10000 times - protection of the on-board electronics - pre-charge via 12 V spare battery, cigarette lighter or micro-USB port - suitable for starter batteries Further technical features: - Width: 195mm - Length: 267mm - Weight: 1.86kg - Height: 50mm - Subject to inspection: yes.