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Group 34 Battery

Aliases: 34 · 34R · Standard family: BCI/SAE

Direct answer: The Group 34 battery is a BCI/SAE-family group — a 12V lead-acid case of 260 × 175 × 182 (approx.) mm with Top post terminals, typically 55–75 Ah and 750–900 cold cranking amps (SAE J537 (−18°C)).

Quick facts

12V 55–75 Ah 750–900 CCA 260 × 175 × 182 (approx.) mm

Identification

Entity typeBatteryGroup
Group nameGroup 34
Aliases34 / 34R
Standard familyBCI/SAE

Specification

Voltage12V
Typical capacity55–75 Ah
Typical CCA750–900 A
Dimensions (L×W×H)260 × 175 × 182 (approx.) mm
TerminalTop post

Standards & measurement context

Naming standardBCI/SAE
CCA basisSAE J537 (−18°C)

The CCA figure is defined by its test standard — values from different standards are not directly interchangeable. Capacity values are typical ranges, not a substitute for a specific battery's datasheet.

Applications

Technology variants

Flooded / AGM — see the lead-acid type family for the design trade-offs behind the label.

Equivalent capacity class

~55–65 Ah — other groups in a similar capacity class. This is a capacity comparison, not a physical interchange: dimensions and terminals differ between naming families.

H4H555D2365D23

Testing

Relevant methods for this group: CCA testing, capacity testing, load testing — see the testing methods for procedures and standards.

Sources & verification

CCA 750–900 A — SAE J537 (−18°C)

Source: BCI group-size reference; Summit Racing / AutoZone product specs · Date: 2026-09 · Confidence: Medium

Last verified: 2026-09

Related

Group sizes explained What is CCA CCA reference Dimensions & terminals Plate & grid design CCA testing

Values are cross-verified typical ranges, not a substitute for a specific battery's datasheet. Return to World Battery Hub.