This is the first simplehuman battery operated soap dispenser purchased. I do own and really enjoy the use of the USB charged dispensers that I own. This one even though it did not get as much use in a high traffic area and dry climate I live it created a film/corrosion of the batteries and battery area within the dispenser and would not operate. I called Customer Service (since I had registered the dispenser at time of purchase) and a new one was sent out to me as a replacement. simplehuman Customer Service stands behind their product when you as the consumer take the time to register all of the simplehuman products that you purchase. That is the key.