An outboard suitable for kayaks needs to meet very special standards, it must be extremely light and also watertight. The motor needs to fit onto almost any kayak. It must be faster than a kayaker can paddle, and provide a worthwhile range. The Torqeedo Ultralight is the result of these challenges and it meets all these demands. It weighs only 15 lbs including battery. The Ultralight can be mounted on most any rigid-hull kayak using stainless steel dowel pins. Steering can be locked, after which kayak is steered with the paddle or the rudder. This results in a larger radius of turn. Alternatively, the motor can be connected to the rudder or the steering system of the boat, which makes it very maneuverable (e.g. for fishing). All components are watertight and protected against complete immersion. The motor shuts off when the magnetic key on the remote throttle control is removed. Therefore, for safety reasons, the magnetic key should be attached to the wrist or the life vest. If the kayak capsizes, the motor shuts off automatically to avoid possible injury. Charge time with the included charger is approximately 8 hours. The battery does not have a memory-effect. Generally, a loss of capacity of 4% per year can be assumed. Aging is accelerated if the battery is exposed to high temperatures for long periods and if it is stored fully charged for long periods. Therefore, the battery can be used in very hot conditions, but should be removed from the sun and stored in a cool place when not used.