K-Tor Power Box 50


Regular price
Price: $395.00
Regular price
List Price:
Sale price
Price: $395.00
View Cart

A larger more powerful pedal generator than our power box. A greater than 50 watt generator regulated to 14 volts 3 amps in the standard model. Contact K-tor for custom configurations.

Product Details

This model has many advanced features:

  • Glass fiber reinforced nylon plastic in the case
  • A smart chip for regulating voltage and current
  • Electronic current limiting and thermal protection
  • Aluminum alloy cranks for greater strength and lighter weight
  • Square shaft to crank connection for greater strength and longer life
  • High temperature improved main bushings

Universal Pedal Powered Electricity Generator
The Power Box 50 is a pedal generator that can be used with your legs or arms. It generates electricity as you pedal, like on a stationary bicycle. Charge the batteries of a full range of portable electronics. Or, charge external batteries to power laptops and all kinds of appliances — either directly from the batteries or through an inverter. The Power Box has a 12-volt automotive like outlet. It allows you to plug in devices designed to plug into an automotive outlet like 12-volt to USB converters and with the 12 volt to alligator slip cable included to direct charge 12-volt batteries. The Power Box is a great addition to emergency and survival kits.

Powerful and Versatile
The Power Box 50 has a greater than 50 watt generator and is regulated to deliver 14 volts at up to 3 Amps. Deep cycle sealed lead acid batteries. Upon request custom units can be modified to directly charge lithium batteries. Because it is so powerful, it can charge more than one device at a time — like a smart phone and a tablet. Since it can be cranked for long periods of time comfortably, it can be used for higher power applications that it cannot charge directly. Simply charge an external battery and run your appliances, either directly from the external battery or through an inverter.

Small, Lightweight and Portable
The Power Box folds, in seconds, to the size of a small box — 13.25 x 9.25 x 7.25 inches. It weighs just 5 pounds, 6 ounces making it very lightweight and portable. It is smaller and lighter than an exercise bike. It provides similar cardio benefits. And it generates electricity.

Highly Efficient Design
The Power Box is designed to be very efficient. It converts the generator output to 14 Volts DC. 14 Volts DC is compatible with all 12-volt automotive applications chargers.

The Power Box for Emergency Power & Preppers
The Power Box is great for emergency power and should be on your checklist for basic emergency survival kit supplies. For disaster preparedness, it belongs in every bug out bag and 72 hour disaster kit. Survivalists and Disaster/Doomsday/Armageddon Preppers view our pedal generator as a great addition to their survival kits. Add the Power Box 50 to your list of survival supplies. Feel confident that you can charge devices and generate power in emergency situations — from an earthquake to the apocalypse.

When all else fails or disaster strikes — the grid is down, no fuel for gas generators and no sunlight for solar power — the Power Box will always work…at least as long as you do. Use it to charge portable electronics’ batteries for:

  • Cell phones
  • Mobile radios (like hand-held ham and emergency radios)
  • Tablets
  • LED lanterns
  • GPS devices
  • Medical devices
  • MP3 and DVD players (to entertain when the lights go out)

And, you can use these devices while they are being charged.

Charge multiple devices at once — up to the maximum power of the Power Box — with a simple extension cord. See the Power Box Advanced Energy Generating Guide for more information. The Power Box is also a great back up to solar power in case of prolonged periods of cloudy or stormy weather.

The Power Box Off-Grid
The Power Box can be used to charge 12 volt batteries and keep essential electronics and small appliances running. It can also be used on-grid or off-grid as a back up to other sources of power. The Power Box has a square taped shaft. Other devices like water, wind or any other power source can power it, as long as it is not overloaded and doesn’t exceed 1.5 cycles per second.

The Power Box for Camping and Hiking
The Power Box is collapsible, compact, and lightweight. And it has a small footprint. It is portable and can be carried anywhere. The size of a small box and just over 5 pounds, it can power all of your essential emergency electronics and the Kindle or tablet you’re using to keep a log of your trip.

Boating with the Power Box 50
The Power Box 50 is a handy power source on a boat. It is an emergency power source. And, it will charge batteries for trolling motors or other needs. The 12-volt socket is a marine outlet but the unit is not water proof.

Note: Shelter the main unit from water spray. It is totally enclosed, but not waterproof. The plastic and coated steel are resistant, but the internal electronics should not be immersed in water.

The Power Box for Exercise
The Power Box converts mechanical effort into electricity. So, it can be used as an arm or leg pedal exerciser that has a practical use as well. Think of it as a small stationary exercise bike with a dual purpose. It’s portable, compact, and folds to the size of a small box. You can use it at home, under the desk at the office, and while traveling. And, you can adjust the load to vary the resistance and fine tune your workout.
We tested the Power Box at various loads with a healthy male, and in sustained pedaling heat rate increased to 120 beats per minute and steady perspiration after 10 to 15 minutes.

Remember, the Power Box involves exercise. It is your responsibility to be sure you are healthy enough to use it. If you have any doubt, consult your physician. K-Tor is not responsible for any injury you sustain from using our devices.

The Power Box for Physical Rehabilitation
Many of our customers use K-Tor devices for physical rehabilitation. The hand crank charger, the Pocket Socket, and pedal generator, the Power Box, provide a simple form of exercise for arms or legs. The resistance is adjustable based on the load put on the generator.

Pedal Powered Electricity in Education
Many K-Tor products are used in educational presentations and projects. For example, a comparison using incandescent, compact fluorescent and LED light bulbs is quite effective. You can see and feel the resistance and relative efficiency for these different illumination technologies.

  • Standard 12 volt automotive power outlet
  • 12 volt-to-alligator connector cable for directly charging sealed lead acid batteries

Weight 7.5lbs

Dimensions 13 x 9 x 7in

Read Instructions Before Use

Pedal Power requires physical exercise; ensure you are healthy enough to operate. Consult a physician if you are unsure. Connect only compatible devices. Insure devices plugged in are connected securely. Do not use devices that are loose as a poor connection can create arcing and a fire hazard. Do not stand on generator. Do not overload.


The K-TOR Power Box 50 pedal power generator provides 14 volt DC power and has been designed to charge directly 12-volt sealed lead acid batteries. Devices that plug into an automotive 12-volt socket and are within the maximum power range such as USB outlets can be used. Insure devices plugged in are connected securely. Do not use devices that are loose as a poor connection can create arcing and a fire hazard. K-TOR offers accessories for these purposes such as the 12-volt male to alligator clips, included with the unit. Available to purchase from K-TOR are a 12-volt male to dual 12-volt female socket, 12-volt male to USB and 12-volt male to inverter. Or, purchase a third party 12-volt to Anderson Connectors converter. To run devices that exceed the generators maximum power charge a battery with a Power Box 50 and run an inverter off of that battery. Custom versions with different voltage and current regulation, such as charging lithium batteries, are possible within the maximum capability of the generator.


K-TOR provides a one year warranty on all generators starting from the date of purchase. The one year warranty covers defects in material and workmanship only. If a unit is found to be defective, K-TOR will repair, replace or refund the unit. To request a warranty claim, contact K-TOR by emailing info@k-tor.com. Once a return has been authorized, the unit must be returned to the factory postage prepaid. Do not modify or overload K-TOR generators as this can damage the unit and will void the warranty.


K-TOR accepts no liability from loss of use, injury or direct or consequential damages as a result of the use or inability to use or failure of K-TOR products.

Shipping and Returns

We want you to be happy with your purchase. Visit our Shipping page for order details. We stand by our Price Guarantee and Return Policy.


Customer Reviews

Based on 1 review

One of the most important aspects is kinetic energy when you don’t have sun water wind; Kinetic energy is universal!

Questions & Answers

Have a Question?

Be the first to ask a question about this.

Ask a Question