Review title is " Do not leave this shaver plugged in for more than 1 hour" [SEP] Makes one wonder when they definitely tell you "Unplug the shaver and do not allow it to charge for greater than 1 hour". Sounds like the old lithium ion safety problem strikes again. Pretty terrible outcome for forgetting to unplug the shaver- one morning.  I guess I can go get a $20 timer and plug it into that to make sure. But for a top-dollar device, one would expect the engineers to design in the required charge termination cycle ?