A couple decades ago, almost every American home had an electric can opener. They plugged into the wall, and some were even mounted to you under-cabinet or the wall. Yeah, you remember those.
Prices for these can openers range from about $10 to more than $30 depending on the features. Save the money, and buy a hand-crank can opener. The cost is usually about $5. They hardly ever break. The may need to be replaced every ten to twenty years or so. I've been using the same can opener for almost a decade, and it probably has another 5-10 years left on it.
These items can even be washed in the dishwasher.
