Well, it has gone through 3 winters that has been all the way down to -10 celcius. And several times it have been so cold that the battery froze down in to the cords and it got stuck and didn’t start!and one time the battery has driven almost 10 kilometres on the blinking battery screen level and I had to “force it” on. So basically it just died when the battery on the display was blinking and I turned it on and off and then it worked, and I did that like 15 times for almost 10 kilometres. The bike has driven through water, forest, snow, dirt, rocks and extreme weather fishing adventures. Im surprised it lasted this long (bike owner) / (son)