Guide :Health & Beauty : Flex XP II 5790 Electric Shaver
Intermittent lack of full charge
When the unit was about 2 weeks old, started getting occasional case of charge not lasting long enough to finish shaving. Happened several times. Sent to repair center; took 3 weeks while waiting on parts. Got it back and seemed to be working OK. Now, started same thing again. Repair center said they replaced chassis and battery.
Works OK if use the cord all the time, but I bought it t use without the cord, except to charge.
Seems like this model is a lemon.