Battery Replacement Recommendations for 2006 340 Sundancer

[JRowenole]

I would appreciate your recommendations for replacing of all 4 batteries in my 2006 340 Sundancer. Admittedly, I am somewhat battery-naive.

ALL deep cycle or 2 starter/2 deep cycle?

"Wet", "gel", and/or "ASM"?

Group sizes?

Thank you!

 

[Hampton]

Not gel - heat sensitive. Not Wet - high maintenance and don't last very long.

Get AGM. All the same - do not vary types on same battery charging circuit. I have the same as Scott (727 guy above).

Get deep cycle. They have plenty of cranking amps and make much more sense than heavy cranking batteries for boat operations.

 

[skolbe]

According to Sea Ray - on my 320 - the battery trays will handle up to Group 31's.

 

[JRowenole]

Based on my minor research, I can assume our charging systems O.K. for the ASM batteries?

I read that these batteries have to have more specific battery charging systems to function properly and for longevity.

Thanks again.

 

[Hampton]

Based on my minor research, I can assume our charging systems O.K. for the ASM batteries?

I read that these batteries have to have more specific battery charging systems to function properly and for longevity.

Thanks again.

It is probably fine. I did nothing. AGM are Lead-Acid batteries, just like "Wet Cells." Gels are the ones you need to worry about.

 

[Robski97]

Ive poasted this before . Check out the Sears AGMS . DieHard Marine Battery, Platinum PM-1 - Group Size 31M

Awesome battery. Do a comparison of CCA etc.. impressive battery!

Rob

 

[Alex F]

If you decide to stick with something simpler than AGMs give local MarineMax a shot. They have pretty good group 31 batteries ($100-$120), which I'm using with no issues.

 

[hack4alivin]

Ive poasted this before . Check out the Sears AGMS . DieHard Marine Battery, Platinum PM-1 - Group Size 31M

Awesome battery. Do a comparison of CCA etc.. impressive battery!

Rob

+1.... Sears Marine Group 31 AGM's. Best investment I have made to our boat!

 

[fc3]

Interstate flooded wet cell group 27 batteries. Have to add water to them every month or so, but 4 or 5 years at only $65/each just can't be beat. If you are away from your boat a lot or can't access the batteries to top up the water or too lazy to maintain them, get AGMs. But I don't believe that for four times the price of flooded cells that AGMs give four times the performance.

Actually, my main problem with batteries is that they are heavy. Seems like I drop one every year or two and have to replace it. Oh well. Doubt even AGMs survive a 4 or 5 foot drop.

Your mileage may vary.

Best regards,
Frank