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Customer reviews for Duracell Commercial Battery, Group Size 31 C for
Duracell Commercial Battery, Group Size 31 C
4.1 out of 5 stars
stars22 ratings16 reviews
  1. 5 stars64% (14)
  2. 4 stars14% (3)
  3. 3 stars5% (1)
  4. 2 stars9% (2)
  5. 1 star9% (2)

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Showing 1-10 of 16 reviews
Aug 21, 2018
mvpmich
5 out of 5 stars review

Verified Purchase

Good deal

Battery meets and exceeds my RV requirements. Price was right and all seems to be fine. 2 suggestions; 1. Save the bolts from your existing battery as they do not come with this battery, and 2) charge it before installing. I needed two batteries based on my DP load requirements and happened to read somewhere that if the batteries aren’t fully charged when installed, they probably won’t reach full charge on the alternator and will this underperform.

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Aug 17, 2019
Aj
5 out of 5 stars review

Verified Purchase

So far so good

Use them in my Internatinol 9900i semi .Its only been a month but so far so good for the price

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Mar 12, 2019
Ghost Rider
5 out of 5 stars review

Verified Purchase

Working as expected better than stock batteries

Bought for my 2018 Volvo semi that the original batteries started failing after 7 mos

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Oct 5, 2018
Rmarkhamjr
5 out of 5 stars review

Verified Purchase

Great Semi tractor battery bank

Great for semi truck use. 950cca is plenty of power

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Jun 9, 2018
crusher
5 out of 5 stars review

Verified Purchase

fits my motorhome and now it starts again.

good product

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Jul 25, 2018
Monkeymatres
5 out of 5 stars review

Verified Purchase

Great price

Works like a champ and cant even come close to beating the price.

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Feb 29, 2016
RVRoamer
3 out of 5 stars review

Not as advertised

The online description shows this battery as having a CCA of 950, but when I got it home I discovered the CCA was only 760. It's the MCA (32 degree rating) that is 950. I had already exchanged my old batteries, so didn't have much choice but to keep these, even though they are under-powered for my big diesel engine, Hope I don't ever have to start it up when it is below freezing.

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Mar 30, 2026
Bill
2 out of 5 stars review

Do not last

Bought 2 of these for my RV starting batteries 2/1/25. By 3/30 26 bother were sulfated and dead. They do no last and Sams will not prorate, 1 year is the length of the warranty and that is it. I am sure there are better batteries for not much more.

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Dec 20, 2017
NYmissy
2 out of 5 stars review

Keep your old nuts

Just picked up a set of these for our RV. Keep the nuts from your old set the ones that come with the battery do not fit, way to small. For some reason the people that make these batteries don't have a clue what size post they are making or what nuts fit them. How well they will last is yet to be seen. I hope they last a few years. I'm tired fo replacing batteries every year or two.

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Aug 22, 2024
mvj1
1 out of 5 stars review

Don't last

Bought 6 of them a year and a half ago for our boat for starting batteries for 6BTA Cummins, the onboard generator, and 2 thruster batteries. All 6 have failed, testing at less than 50% capacity. Highly displeased with them.

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