Batteries

Moderator: Sean McLaughlin

Batteries

Postby Steve Middel » Sun Nov 19, 2017 4:40 pm

Hi all. What does everybody prefer out there for deep cycle trolling motor batteries. 27s or 31s. I know 31s are a better battery but do they last much longer then 27s?

I have 2 27s in my boat now. Less then 2 years old so under warranty. 1 has failed the other shows it is weak. If I get 2 31s to replace it. Will they last much longer? Or should I stick with 27s and replace them every 2 years?

Thanks
Steve Middel
 
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Joined: Mon May 02, 2011 12:51 pm

Re: Batteries

Postby Bob McKenzie » Sun Nov 19, 2017 7:19 pm

Steve,

I replaced both my 27 tm batteries with the nautilus group 31s, same footprint as the 27s but there taller. Both my 27s went bad a week apart, both were interstates and were about 2 years old. I like the nautilus because there readily available anywhere in ontario. And yes they have alot more juice than the 27s, i do some trolling motor only lakes and ive stayed out for more than 8 hours without any drop off
Bob McKenzie
 
Posts: 294
Joined: Sun Mar 28, 2010 2:50 pm

Re: Batteries

Postby Chuck Webster » Mon Nov 20, 2017 5:56 pm

Hey Steve/Bob
31 series has a slightly longer footprint vs 27 series ie: the Nautilus 31 series is 13 L x 6.75 W x 9.3" H the 27 series is 12.5 L x 6.75 W x 9.3.
The 31 series spec (again Nautilus so you can compare apples to apples here) is 800 marine cranking amps, 105 amp hours, 185 minute reserve capacity vs 800 marine cranking amps, 80 amp hours, 150 minutes reserve capacity.
In terms of trolling motor batteries you are mostly interested in reserve capacity and amp hours. Higher is better.
Chuck Webster
 
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Re: Batteries

Postby Bob McKenzie » Mon Nov 20, 2017 11:24 pm

Now that you mention it Chuck, i did have to nip off some plastic from my tray, just where the screw holes are but they did fit in the existing tray, thanks for clarifying.
Bob McKenzie
 
Posts: 294
Joined: Sun Mar 28, 2010 2:50 pm

Re: Batteries

Postby Steve Middel » Tue Nov 21, 2017 7:12 pm

Thanks Bob and Chuck. Your help is very much appreciated!
Steve Middel
 
Posts: 209
Joined: Mon May 02, 2011 12:51 pm


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