Best Pwr External Phone Batteries

Our Rechargeable Lithium Ion Batteries are specifically designed to power our flexible LED Light Strips rolls or Light Bars, and are a small, convenient, and portable solution to your on-the-go low voltage lighting needs. They're particularly well suited for lighting up costumes, bicycles or anything else that needs to be lit up while 'on the move'. They include everything you need to get your lights mobile, including the battery itself, a cable and a charger to hook straight into your wall outlet, and are also popular with manufacturers who need a compact and reliable 12 volt power source for their products or anyone looking to replace a wired power supply, transformer, or adapter. They now come with a 5V USB output port for charging your cell phones, tablets, and other electronic devices Charging Instructions :  Plug AC Charger into electric outlet  Connect your charger to your battery with the included connector cable  Set the switch on the Battery to the 'On' position  Charge time to full capacity : Approximately 12 hours Specifications :  Charger Input : 110V-240V AC (Standard North American NEMA 1 plug)  Battery Output 1 : 12V DC / 30 Watts (2.5 Amps) maximum - Output cable with 5.5 x 2.1 mm DC jack  Battery Output 2 : 5V DC USB Plug  Dimensions : 23 x 100 x 60 mm (15/16 x 3-15/16 x 2-3/8 inches)  Capacity : 2800 mAh  Part Number : PWR-12V-B28 To calculate how long your battery will last, divide the capacity (eg 2800 mAh or 2.8 aH) by the current draw (in amps, or your wattage divided by 12), for the result in hours.