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Duracell 49 H8 Car battery
49 H8
This Consumer Reports best buy model has been tested by our experts.  It has excellent life and very good reserve capacity scores, as well as cold cranking amps performance.  It comes with an 36 month free replacement warranty.  This model does come with a handle which can make installation less difficult.
Description
This Consumer Reports best buy model has been tested by our experts.  It has excellent life and very good reserve capacity scores, as well as cold cranking amps performance.  It comes with an 36 month free replacement warranty.  This model does come with a handle which can make installation less difficult.

Ratings Scorecard

Test Results

Life

Life

Life test measures how a battery endures repeated charge-and-discharge cycles at hot-climate engine-compartment temperatures. The more cycles endured while maintaining a higher voltage, the higher the score.

 /  5
Reserve capacity

Reserve capacity

Reserve capacity estimates how long batteries can run a car if the charging system fails.

 /  5
CCA

CCA

CCA performance reflects voltage at our load of half the average claimed CCA for each group size after cranking for 15 seconds at 0º F. We charged batteries at the 14.5 volts that vehicles typically supply, rather than the higher voltage that manufacturers use. Batteries charged at the lower voltage met BCI voltage standards for a fully charged battery.

 /  5

About

The Duracell 49 H8 is part of the Car batteries test program at Consumer Reports. In our lab tests, Car batteries models like the 49 H8 are rated on multiple criteria, such as those listed below.

Life Life test measures how a battery endures repeated charge-and-discharge cycles at hot-climate engine-compartment temperatures. The more cycles endured while maintaining a higher voltage, the higher the score.

Reserve capacity Reserve capacity estimates how long batteries can run a car if the charging system fails.

CCA CCA performance reflects voltage at our load of half the average claimed CCA for each group size after cranking for 15 seconds at 0º F. We charged batteries at the 14.5 volts that vehicles typically supply, rather than the higher voltage that manufacturers use. Batteries charged at the lower voltage met BCI voltage standards for a fully charged battery.