A high-power portable jump starter can deliver a strong electrical boost to compatible vehicle batteries when the engine cannot start normally. Depending on the model, it may support cars, SUVs, vans, motorcycles, and other vehicles within its rated specifications. Features can include heavy-duty jumper cables, battery indicators, LED lights, USB outputs, and protective circuitry. It is useful for personal vehicles, road trips, roadside assistance, garages, and emergency preparedness.