Duracell Ultra G31 AGM Batteries

[fishheadbarandgrill]

For those of you using the Duracell G31 batteries for your house and thruster, how have they worked out for you. Thinking real hard about using them when I replace my current bank later this summer. Also thinking of going with the Optima Blue for the starting battery.

Thanks,

 

[Rednuke1]

Hi Bob,

I installed (4) brand new Duracell Group 31 AGM’s in my 2015 Cutwater 28 in May. So far, so good! We spend a lot of time on the hook, and after a night and 1/2 day running the fridge, lights, electric flush head, pumps, etc., the house bank still showed 12.47 volts.

I researched them quite a bit before purchasing on other boating forums like “The Hull Truth”. All good feedback. I use one for my main engine start as well. Fourth one is thrusters/NexGen generator start.

Bought mine at Batteries and Bulbs, but only because Sams Club was out of stock. Can be had there for $80-$90 less per battery than at Batteries and Bulbs.

Good luck!

Red

 

[chicagosam]

I use them exclusively on my boats. I also use them for my 24v Sump pump system in the house. Mostly bought at Sam's Club, but when stock is low I will grab one at Batteries Plus.

I use them for my Engine Start as well and a pair for a trolling motor.
They have lasted just as long as any other battery I have bought at 1/2 the price.

FYI, They seem very hard to get in the GR31 & GR27 size lately. I have heard that batteries are on the list of items with supply chain issues.

 

[Favunclerich]

Roam had four Duracell AGM Group 31 batteries installed about two and a half years ago. As other have noted, they were purchased from Sam's Club for about $175 each.

So far so good, but AGM batteries should last much longer if they are not discharged below 50%, so the "test" is far from over.

 

[Martin610]

I bought four of the Duracell AGM's at Sam's Club about 6 weeks ago. So far so good.

 

[bill46]

Installed 4 Duracell 31s from Sams 4 years ago. Fine so far. Factory Chinese UPCs ones were shot in 4 years. Durcells are made in USA by East Penn. We replaced thruster and engine ones 2-1/2 years ago. Had problems with engine one until I discovered stainless studs did not provide full current! Added Battery post to stud adaptors and work fine now.

 

[fishheadbarandgrill]

Thanks everyone for chiming in. My local Batteries Plus is flush with the Duracells. I'm getting 5 (thruster and house) and a Optima Blue Top for the starting battery.

 

[scross]

Bob,
Why use the Duracell for the thruster over the Optima?
As I understand the battery for the thruster+windlass function, it’s to power a short duration high amperage draw. More like a engine starter battery than a house battery.

 

[fishheadbarandgrill]

Going with Kevin Lamont's recommendation with regard to the battery alignment for the house and thrusters. I haven't read the specs on the windlass and thrusters.