Cordless rechargeable knives are not all that prevalent on the market -- and the one that garners the most positive reviews also, ironically, draws the most negative comments. That product is the Sonic Blade Cordless Electric Knife, marketed by Emson Inc., the company that also brings you the Bonzai Chopper and the Torpedo Blender. Many of Emson's products have become well known to consumers through the company's extensive use of infomercial marketing.
The Sonic Blade knife is powered by a rechargeable battery, and it comes with a charging block. The knife has a non-slip rubber handle and trigger, and also features a safety lock. The stainless-steel blades are dishwasher safe, and the knife comes with a one-year warranty. Availability is limited, as we found only a few retail websites that carry the Sonic Blade knife, and user reviews are decidedly mixed. Some say the knife is powerful, durable and capable of excellent performance. But other users report significant problems with the unit, ranging from short battery life to weak power output to product deficiencies and malfunctions.
If portability is not essential to you and you'd rather go with a corded product from a conventional small-electrics manufacturer, the Cuisinart CEK-40 Electric Knife (*Est. $50) gets high marks from professional reviewers and home cooks, who say it cleanly and easily glides through foods. It comes with a butcher-block stand, a long cord and an ergonomic handle. If you would prefer a more basic and less expensive knife, the Hamilton Beach Carve 'n Set Electric Knife 74250 (*Est. $20) also gets positive reviews.
More than 100 users posting to Amazon.com give the Sonic Blade Cordless Electric Knife an average rating of 2.5 stars out of 5. Some say it performs well with a wide range of foods, from meats and fish to vegetables to baked goods, and will even core pineapples perfectly. Many see the absence of a power cord as a huge convenience. Some note that the knife makes a great gift. A substantial number of users, however, have complaints. Some say the battery has a short life and the unit is heavy and awkward to use. Some also say it doesn't work as well as it appears to work on TV infomercials.
Review: Sonic Blade 7865.00 Cordless Rechargeable Knife, Contributors to Amazon.com
More than 15 users posting about the Sonic Blade on Buzzillions.com give the knife a rating of 2.8 out of 5 stars. Positive comments include "versatile," "good power output," "stays sharp," "ergonomic" and "good value." Negative comments include "pricey/poor value" and "poor quality," with detailed posts listing significant product malfunctions.
Review: Sonic Innovations Sonic Blade Cordless Knife, Contributors to Buzzillions.com