The latest 2 in 1 jump starter power bank， high power lithium polymer battery for fast charging and discharging. It can support the emergency start and entirely replace the including battery for start-up， with guaranteed ability to function normally at -4 F (-20 C). It supports most cellular phone charging and completely replaces the products similar to mobile power packs. With true powerful LED flashlight，emergency， rescue， signaling， lighting， deterrence and defense and other powerful features. It is the ideal choice for night shift workers and overtime workers. Three levels of power display indicate battery status real-time， reminding timely recharging.