Compatible with most smartphones and devices with USB charging capability; restarts most 5.0L gas or 2.0L diesel engines; 5V and 12V outputs; 37000 mWh lithium-polymer battery; built-in vehicle starter; built-in 4-mode 330 lumen LED flashlight; durable aluminum housing

Keep your vehicle’s batteries fully charged so that they’re ready to go when you are. The Duracell 4 Amp Charger, Maintainer and Reconditioner is an intelligent, multi-stage charger that automatically adjusts to the power needs of your batteries. With 4 Amps of power it can quickly take batteries from dead to ready-to-start in under 2 hours. The multi-stage charging protocol ensures an optimal charge on all types of 6V or 12V vehicle batteries including, Lead Acid, Lithium-Ion, AGM and Gel. The maintenance stage is ideal for keeping stored batteries safely topped off without overcharging. The backlit LCD screen and straight forward user interface ensures that charging is simple and intuitive. The Quick-Connect cable system makes it easy to connect, charge and go. The included clamps are ideal for quickly connecting to any battery while the ring terminals are intended for a semi-permanent installation which are typically installed on a vehicle that requires frequent charging.