I am interested in using the item of: https://www.adafruit.com/product/2832 but I want to have it powered by a battery source. I am using an Arduino Uno for the controller. A friend of mine suggested a behemoth of a "Eveready 6 Volt Lantern Battery 1209" battery. I do not want my LEDs to run all day or anything, just about 4 to 5 hours. Is this battery size accurate? I was thinking more of along the lines of: "Battery Pack 16750 RAVPower 16750mAh Portable Charger Power Pack Power Bank + 2A Wall Charger (Dual USB Ports, 2A Input, 4.5A Output) Power Charger for iPhone, iPad, Galaxy S8/S8 Plus and More - Black"