Bests & Worsts Reviews from Amazon

When you read reviews you see some that say a product is spectacular. The next one says its terrible. So, really you are taking a chance when buying items. You never really know the intentions or legitimacy of the reviewers. I'll give you my personal experience. (your experience may vary). I bought this unit to power a small PA system consisting of an Ipod or computer, a mixer, a mic receiver, and a speaker. I was hoping for at least one-hour of use, with some juice left at a moderate volume. This way, I can setup the PA system pretty much anywhere and not worry about running AC cables. The battery arrived partially charged and in new condition. The directions say to charge it in full before use. I plugged it in overnight. The next day I hooked up the PA system and started playing the music playlist at moderate volume just to see how long it would last. 1 hour went by. Still running. 2 hours went by. Still running. 3 hours went by. Still running. At 3+ hours I shut it off because I needed to leave. I waiting a few minutes, and pressed the power level button on the battery. To my surprise, there was still 3/4ths power left. This product has performed far beyond my exceptions. I cannot begin to tell you how happy I am with this. I can think of a dozen other uses for it. But, for what I need it primarily for, it fits the bill. I will say, that batteries are "finicky". Who knows. A week from now, I can do the same test, and it might last for 10 minutes. I guess that can happen with any type of power supply. I'm very happy that I have a completely silent, gas and oil free solution to portable power. So far so good. Great deal. Decent shipping. And, from what I've read, it is "technically" possible to replace the internal battery if needed. Contrary to reading that you need to dispose of it if it eventually doesn't hold a charge. I am not affiliated with Duracell. I'm not a dealer of power supplies. I'm just an average consumer that needs portable power for business and personal use.