Cranking batteries

[camron]

I have a 2 battery system on my new to me 2120 with a 150 2 stroke. Currently it has 2 deka group 31 batteries in it what is the spec battery for this boat?

Thanks
Camron

 

[Brent]

I am using 800 CCA see

https://www.batteriesplus.com/battery/m ... -group-24m

 

[camron]

Thanks I was looking at the group 24 batteries based off the tray size in the boat. It is a 2004 with only 86 hours on it and mostly original

 

[Brent]

I would buy the biggest battery that fits or replace boxes and install larger ones






B2

 

[shawnee83]

I have an Optima Bluetop D34 with 750 CCA. It starts my 2006 F225 with no issues. It also weighs 43 lbs. I prefer AGM type batteries. If you want to go a step further, replace the battery switch with a BEP Cluster Switch and you will never worry about draining your start battery down again.
https://www.optimabatteries.com/en-us/b ... rting/d34m

https://anchorexpress.com/BEP-Square-Ba ... gJQ_PD_BwE

 

[warthog5]

Gp 31's are BIG for that boat.....I bet the batteries went dead and someone said GET these killer Big A$$ batteries.

With a BEP cluster installed...I use a Gp24 Starting battery and a Gp27Deep Cycle for the house battery on a typical install.

 

[camron]

That sounds good

Thanks

 

[Brent]

Thanks!