10 Best Cordless Fillet Knife For Fishing 2025 in the United States

The WORKPRO 12V Cordless Electric Fillet Knife is designed to meet the needs of anglers, offering a lightweight and ergonomic design that makes it easy to handle. Weighing only 1 pound without the blades and battery, the knife is very manageable. It comes with a rubber-coated handle for a comfortable, non-slip grip, enhancing safety and control during use.

The knife includes two interchangeable blades – an 8-inch flexible blade and a 10-inch stiff blade – both made from premium carbon stainless steel. This versatility allows the knife to handle various fish species with ease. The knife comes with two 2.0Ah lithium-ion batteries, providing up to an hour of usage per battery. With the quick charger, each battery can be fully charged in just one hour, ensuring minimal downtime.

Safety features like a secure lock for the battery and a sturdy storage case further enhance the knife's usability. On the downside, the knife's total weight with all components included is 4.8 pounds, which may add some bulk when transporting. Additionally, users must remember that the product is hand wash only, requiring extra care for maintenance. This product is an excellent choice for fishing enthusiasts who need a reliable and efficient fillet knife.

The FLISSA Cordless Electric Fillet Knife is a solid choice for fishing enthusiasts looking for a cordless tool that makes filleting easier and quicker. It comes with two stainless steel blades—8-inch and 10-inch—offering versatility for different fish sizes. The blades balance stiffness and flexibility well, helping you get clean cuts without much effort. The motor is powerful enough to handle most filleting jobs smoothly, yet it's designed to avoid overheating if used as recommended (with breaks after about 20 minutes).

Its cordless, lightweight design and non-slip, ergonomic handle make it comfortable to hold and maneuver, reducing hand fatigue during longer filleting sessions. The knife runs on two rechargeable 2.0Ah lithium-ion batteries, so you can swap one out and keep working without waiting for charging. A helpful LED indicator shows battery status, which is handy for planning your work. At 4.84 pounds, it’s reasonably lightweight but not ultra-light, which helps with control but may feel a bit heavy for very long use.

The included hard carrying case is a nice bonus, keeping everything organized and protected for transport or storage. This knife isn’t suited for cutting through very hard bones or extreme conditions, as that might cause overheating or damage. If you want a cordless fillet knife that balances power, convenience, and ease of use for typical fish cleaning, the FLISSA knife is a dependable option.

The KastKing Speed Demon Pro is a cordless electric fillet knife designed for fishing enthusiasts who want efficiency and convenience. Its blade is made from corrosion-resistant 420 stainless steel with a durable titanium coating, which helps it stay sharp longer and resist rust—important if you're working with fish near water. The knife comes with four different blades, including 7", 9", and 12" options, giving flexibility for filleting various fish sizes. Powered by a 12.6V lithium-ion battery, it offers a long runtime of up to 1 hour and 40 minutes per charge and includes two batteries to keep you going without interruption. This extended battery life is a strong point if you spend long hours fishing away from power sources, while the high-torque motor provides smooth and quick cutting, making filleting less tiring and more precise, no matter the fish size.

In terms of comfort, the knife features an ergonomic, balanced design with a soft, non-slip TPR handle, which helps reduce hand fatigue and improves grip security—important when your hands might be wet or slippery. The knife weighs about 4 pounds (1.85 kg), which is a bit on the heavier side for a fillet knife but manageable given the motor and battery inside. A neat bonus is the custom slim carry case that neatly stores the knife, blades, batteries, and charger, making it easy to transport and keep everything organized on your fishing trips.

On the downside, the weight might feel a little heavy for some users during extended use, and since it requires hand washing only, cleaning needs a bit of care to maintain the knife. Also, while the motor is powerful, it might be noisier than manual knives, so that’s something to keep in mind. This knife is best suited for anglers who fillet frequently or those who want to speed up the process with less physical effort. Its strong battery life and multiple blades make it ideal for serious fishing trips, especially where cordless freedom is valued.