Rayovac® Power Pack Charger, 2200 mAh, USB, Gray

Lithium ion mobile device charger is rugged, durable, and water-resistant, so you can power up your device in any situation. Compatible with most USB power cords and USB powered devices. Four LED battery gauge indicators show charge and discharge status. Push button turns charger on—if inactive for 30 seconds, charger will automatically turn off to save battery power. Recharge this power pack 300+ times using a USB charger.