Electric Motor Selection

runaground

Cadet
Joined
Aug 4, 2010
Messages
6
hello, most lakes do not allow for gas powered motors anymore.....therefore, I would like to know what size electric motor would I need for a 20ft tri-hull boat to get around comfortably.

thanks
 

Barnacle_Bill

Admiral
Joined
Feb 8, 2004
Messages
6,469
Re: Electric Motor Selection

70 lb thrust or bigger. When it comes to trolling motors bigger is better. You never know when you might need that extra power.
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,357
Re: Electric Motor Selection

hello, most lakes do not allow for gas powered motors anymore.....therefore, I would like to know what size electric motor would I need for a 20ft tri-hull boat to get around comfortably.

thanks

Ayuh,.... Welcome Aboard,... The Biggest you can find, 'n Lotsa Batteries,...
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: Electric Motor Selection

A 20 foot tri-hull is a good size boat for an electric motor of any size. Just how big is the body of water and how far do you expect to travel. Keep in mind just because you have a couple batteries and an electric motor the motor will not move you very fast and the battery(ies) are not an inexhaustable supply of power. They have very limited capability. The bigger the motor and the faster you attempt to go the more juice is being sucked from the batteries. Batteries with large capacity (Ahr number) last longer than one with a smaller number. Group size 22 is a small battery while group 31 is a big one. But always look at the capacity label and those batteries need to be "deep cycles".
 
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