Given the cost of an ePropulsion Spirit electric outboard, it would be quite unfortunate to return to your boat and find your motor or battery missing. Since ePropulsion does not sell a lock for the motor or battery, many customers employ a bicycle cable lock, running it through the battery handle and behind the metal bar in the transom mount. It’s time consuming to lock and unlock the motor each time, and these types of locks can be easily cut with inexpensive bolt cutters, so it’s not an ideal solution.
We’ve found a simple yet elegant method of locking your Spirit 1.0 Plus or Evo while you’re away from the boat. When we first started seeing social media posts illustrating how quick and easy it was to properly secure a Spirit 1.0 motor and battery, we sought out the manufacturer to import them into Canada. It took a while but we finally found the maker—an electric propulsion enthusiast in Austria who, after facing the issue of needing to constantly lock his motor, devised a solution using a 3D printer.
Presenting the Spirit 1.0 Lock Set:

Simple Design
The Spirit 1.0 Lock Set is clever and effective, elegant in it’s simplicity. There are two parts—one lock fits into the top of the battery release handle, and the other prevents the transom mount screws from being loosened. They are made of high quality, durable and UV-resistant plastic with stainless steel lock cartridges. The lock itself has a small, spring-loaded keyhole cover to prevent water or debris from entering the chamber.
Quick Installation and Removal
Installing the locks is really simple. To lock the Spirit Battery, you simply insert the battery lock into on top of the release handle then turn the key. The battery is not locked to the motor.
To lock the ePropulsion Spirit 1.0 motor, you just need to make sure the blue clamp knobs are facing each other. With the lock cartridge at the top right, Insert the left knob into the slot on the left side, then place the lock over the knob on the right side. Turn the key and…done! Your motor and battery are now secure!
Limited Availability
As the gentleman making this product is doing so as a side-hustle, and he is often sailing for large stretches in the summer, quantities are limited. We currently have an our initial order in stock, but when sold out it may be late summer before we can get more. If you want a lock set, grab one before they’re gone…here’s the product page.