How long will the battery last on a Minn Kota electric outboard?
It all depends upon how big your battery is, how big the engine is and how fast you are going. 85a/hr Battery = equivalent 85 amp output for 1hour A battery has an approximate maximum usable capacity of 75% of the stated capacity. Therefore an 85a/hr battery has a usable capacity of: 85 x 75% = 63.75 a/hrs. This figure can then be used to approximate how long an electric outboard would run at full throttle on an 85a/hr battery (obviously the battery would last longer at a lower throttle setting) Minn Kota Classic 28 = 35A max draw 63.75 / 35 = 1.82 hrs Minn Kota Endura 30 = 30A max draw 63.75 / 30 = 2.13 hrs Minn Kota Endura 36 = 34A max draw 63.75 / 34 = 1.88 hrs Minn Kota Endura 46 = 42A max draw 63.75 / 42 = 1.52 hrs Minn Kota Maxxum T40 = 42A max draw 63.75 / 42 = 1.52 hrs Note though that the Maxxum will most probably achieve better performance than this because of its increased sophistication.
