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Battery size needed?
gsouthern
#1 Print Post
Posted on 10/20/14 - 3:50 PM
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What size battery do I need to start my 1990 20hp Johnson? I currently have a Deep Cycle Group 24 now, it came with the rig, but I know it is overkill and puts a lot of weight in the stern. Any input is greatly appreciated.

 
CES
#2 Print Post
Posted on 10/21/14 - 9:24 AM
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A group 24 starting battery is all you need. The Deep cycle batteries are good for long periods using a trolling motor, etc. A deep cycle isn't needed for starting a 20hp motor.

I'd say a 525 MCA group 24 battery would do you fine.

http://www.exide.com/Media/files/Down...Manual.pdf


Cliff
1966 13' Sport with a 1993 40hp Yamaha 2 Smoker
 
gsouthern
#3 Print Post
Posted on 10/21/14 - 3:47 PM
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Thanks for the reply, but maybe I should of phrased my question differently, what is the smallest size battery I can use to start my 20hp Johnson? I want to eliminate some of the weight in the stern. Thanx for any info.

 
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