Electric motors & accessories

The decisive factors are boat weight (including payload), hull shape (planing/displacement), typical conditions (wind/current), and the desired travel time. For small dinghies and fishing boats, thrust and efficiency are usually the most important factors; for heavier boats, power reserve is more critical. If you provide the boat’s length, weight, and intended use, we can easily narrow down the right motor size.

Measure the transom height (from the top edge of the transom to the bottom edge of the boat) and take wave conditions and load into account. The propeller should remain securely in the water even in rough seas without constantly drawing air (cavitation). A long shaft is often advisable for higher freeboard or rougher conditions, while a short shaft is better for small, low transoms.

The required voltage depends on the motor system. What matters is the energy in Wh (watt-hours): range/running time is roughly calculated as battery Wh ÷ power consumption (W). For long runtime, sufficient capacity, suitable chargers, and proper fusing are crucial. Also ensure appropriate cable cross-sections and short cable runs to avoid voltage drops.

With electric motors, accessories are often model- and series-specific. Therefore, always check the model designation (e.g., Torqeedo Cruise/Pod, Talamex TM series), version, and, if applicable, part number. This applies particularly to propellers, control units, connection cables, chargers, and mounting accessories. The safest way to verify compatibility is by checking the nameplate/manual or the stamping on the existing part.

For metal parts submerged in water, anodes protect against galvanic corrosion—especially in saltwater or brackish water. Suitable anodes (material/shape) must match the specific drive and be installed correctly (bare contact, secure fit). Regular inspection prevents costly consequential damage to the drive.

Mount the motor on a sturdy transom/bracket, secure clamps/screws, and route cables so they do not chafe or kink. Electrical considerations: Fuse near the battery, appropriate cable cross-sections, clean crimp connections, and splash-proof joints. After installation: Functionality check (forward/reverse, emergency stop if available) and test run at low power.

After use in saltwater, rinse with fresh water, inspect moving parts, and store in a dry place. Check the propeller for line debris and damage. Store batteries according to manufacturer’s specifications (temperature, charge level). Check anodes regularly and replace them if they are wearing down quickly. This keeps the system efficient and reliable.