adding a second battery

solomon

Cadet
Joined
Aug 11, 2005
Messages
29
Could someone explain how a novice like me can add a second battery to my boat for trolling/accessories and have the alternator on my motor charge it and the starting battery? Tohatsu 40 TLDI.
 

TOHATSU GURU

Admiral
Joined
Jul 22, 2004
Messages
6,164
Re: adding a second battery

You will need a battery switch to do this safely and the switch will come with instructions.
 

solomon

Cadet
Joined
Aug 11, 2005
Messages
29
Re: adding a second battery

Is there a certain one I need to look for. I think the alternator on that motor is 23A.
 

jshoes52

Petty Officer 2nd Class
Joined
Aug 21, 2004
Messages
113
Re: adding a second battery

Once you get this battery switch, make sure you don't inadvertantly turn the switch to "Off" while the motor is running.
 
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