What size engine battery for 2016 R-31s with a Volvo Penta D4 engine

[Bpwicks]

I need to replace some batteries but I am unable to access the engine/starter battery without disconnecting the thruster battery. Can anyone provide info on the size (in cold cranking amps/ CCA) that I should obtain? Thanks in advance!

 

[S. Todd]

I need to replace some batteries but I am unable to access the engine/starter battery without disconnecting the thruster battery. Can anyone provide info on the size (in cold cranking amps/ CCA) that I should obtain? Thanks in advance!

I replaced our original equipment batteries (all six of them) with West Marine Group 31 Dual Purpose AGM Batteries, 105 Amp Hour, Cold cranking amps 800 (marine cranking amps 1000). I am happy with them and get much better performance than my original equipment batteries. I do not recall what the required CCA was for the D-4, but I know the 800 figure was sufficient.

 

[watson1987]

I have a pair of these for starter + thruster on my R-31. One of the best group 31 battery

These are a great price if you can get them before they are done

Ultra High Performance Group 31 Thin Plate Pure Lead AGM Battery | West Marine

Check out our Ultra High Performance Group 31 Thin Plate Pure Lead AGM Battery and more from West Marine!

www.westmarine.com