I purchased this mower, which I assume is a new Sun Joe product because it has not yet been reviewed on Amazon, because it seemed to have the solution to my battery/charging problem with the similar Sun Joe lightweight, cordless mower that I purchased several years ago. I destroyed the battery of that mower because I left it plugged in overnight, whoops!This mower is great. For folks not familiar with previous versions of this mower, it is ideal for anyone with a small to medium sized yard. It is quiet, lightweight, easy to maneuver, and impressively scrappy as the engine kicks into turbo to successfully cut overgrown grass and weeds when you've let the yard go. Truly makes mowing a pleasure.Past models had a major deficit though: a battery that was attached to the mower so the mower had to be plugged into an outlet to charge which for me meant plugging it in to the outlet in my outdoor garage, forgetting to unplug when it was charged, and destroying the battery. Also, the battery of past models was less powerful so I couldn't mow my whole yard without having to recharge, especially if my grass was overgrown and the mower had to kick into turbo.This model far surpassed my expectations. With just one charge, it took care of my disturbingly overgrown backyard and my front yard! My dad had laughed at it and called it a toy and told me I had to call landscapers to mow, at least the first mow of the season, with a "real" mower. But this little guy did the job flawlessly! I'm delighted.