Review on Efficient and Reliable: The Coleman QuickPump for Quick and Easy Inflation by James Auzenne

Works as advertised, charged immediately but as we were away for a week I charged it in 8 hours. I've used it to fill a Queen Coleman mattress from empty and inflate it 3 times a week with no problems - there was still juice in it to deflate the bed. I keep it at home in place of a trailer and check performance every month - so far so good! Update 2020 - still runs like a champ, hikes with us a few times a year and never stops sulking or raising his voice. with age, as some objects do.