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Customer reviews for Duracell AGM Automotive Battery, Group Size 35/85 for
Duracell AGM Automotive Battery, Group Size 35/85
4.3 out of 5 stars
stars
48 ratings26 reviews
  1. 5 stars73% (35)
  2. 4 stars6% (3)
  3. 3 stars6% (3)
  4. 2 stars2% (1)
  5. 1 star13% (6)
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Showing 21-26 of 26 reviews
Nov 21, 2025
G37x
1 out of 5 stars review

Absent of Longevity Usage

Bought this battery November 2024. Not even a year has gone by and I have to get this replaced. Does not hold battery voltage. I've been stuck on Sam's club return warranty every year and this is not the first time.

Helpful?29ZQLKRZQW3D13878163647
Apr 24, 2023
Ali
1 out of 5 stars review

Great at first but fails quickly

Bought this battery since my old battery died and has been a problem ever since. It has already died 2 times, thankfully it's been under the warranty and I've been able to have them replaced, but if I don't drive the car for more then 2 days it just dies.

Helpful?29ZQLKRZQW3D13878163647
Nov 2, 2019
C6
1 out of 5 stars review

One year only

This battery lasted only 11 months with less than daily use.

Helpful?29ZQLKRZQW3D13878163647
Nov 21, 2025
Dane
2 out of 5 stars review

Replaced in less than a year

Battery needs replacement with less than a year's use.

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Sep 9, 2019
Rump
3 out of 5 stars review

AGM battery NO WARNING NOT FOR HOT LOCATION

While new 35 AGM was in service under hood the case swelled slightly at the ends. Discouraging. NO WARNING ON BATTERY regarding HEAT! Discovered after much digging online that AGM batteries are not meant to operate in very hot environment. If charging at temps over 120 degrees F., the case will swell. AGM batteries are designed for locations inside of vehicle. Have ordered insulation kit to protect battery from heat. Considering adding longer battery cable and locating battery in rear of vehicle. VERY UNDESIRABLE!!!

Helpful?29ZQLKRZQW3D13878163647
Mar 25, 2025
Thao
1 out of 5 stars review

Bought in September 2024, and it completely died today. Hopefully, I can claim the warranty.

Helpful?29ZQLKRZQW3D13878163647