Chevrolet Blazer Battery Sizes (1989 - 2020)

From 1989 to 2020, the Chevrolet Blazer has battery codes of H7, 75/86, and 34/78.

The Battery Council International has created a standard of battery codes consisting of letters and numbers which refer to the battery size that will fit best for a particular vehicle.

Scroll down to see the physical dimensions and battery code for your specific model year of Chevrolet Blazer.

2019 to 2020 Chevrolet Blazer Battery Size Comparison Table

Year	Battery Code	Length	Width	Height
2020	H7	12 3/8 in.	6 7/8 in.	7 1/2 in.
2019	H7	12 3/8 in.	6 7/8 in.	7 1/2 in.

2003 to 2005 Chevrolet Blazer Battery Size Comparison Table

Year	Battery Code	Length	Width	Height
2005	75/86	9 1/2 in.	7 1/4 in.	8 3/8 in.
2004	75/86	9 1/2 in.	7 1/4 in.	8 3/8 in.
2003	75/86	9 1/2 in.	7 1/4 in.	8 3/8 in.

2000 to 2002 Chevrolet Blazer Battery Size Comparison Table

Year	Battery Code	Length	Width	Height
2002	75/86	9 1/2 in.	7 1/4 in.	8 3/8 in.
2001	75/86	9 1/2 in.	7 1/4 in.	8 3/8 in.
2000	75/86	9 1/2 in.	7 1/4 in.	8 3/8 in.

1994 to 1999 Chevrolet Blazer Battery Size Comparison Table

Year	Battery Code	Length	Width	Height
1999	75/86	9 1/2 in.	7 1/4 in.	8 3/8 in.
1998	75/86	9 1/2 in.	7 1/4 in.	8 3/8 in.
1997	75/86	9 1/2 in.	7 1/4 in.	8 3/8 in.
1996	75/86	9 1/2 in.	7 1/4 in.	8 3/8 in.
1995	75/86	9 1/2 in.	7 1/4 in.	8 3/8 in.
1994	34/78	10 1/4 in.	6 13/16 in.	7 7/8 in.

1989 to 1993 Chevrolet Blazer Battery Size Comparison Table

Year	Battery Code	Length	Width	Height
1993	34/78	10 1/4 in.	6 13/16 in.	7 7/8 in.
1992	34/78	10 1/4 in.	6 13/16 in.	7 7/8 in.
1991	34/78	10 1/4 in.	6 13/16 in.	7 7/8 in.
1990	75/86	9 1/2 in.	7 1/4 in.	8 3/8 in.
1989	75/86	9 1/2 in.	7 1/4 in.	8 3/8 in.