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SAE & EN Standards

SAE (Society of Automotive Engineers) and EN (European Norm) standards govern automotive batteries in North America and Europe respectively. Both test CCA at −18°C, but differ in group sizing and other conventions.

SAE Standard (North America)

  • CCA test temperature: −18°C
  • Group sizing: Uses BCI group sizes (e.g., Group 24, 27, 31, 49)
  • Terminals: Top posts or side terminals depending on group
  • Market: North America

EN Standard (Europe)

  • CCA test temperature: −18°C
  • Group sizing: Uses European size classes (e.g., DIN88, DIN100, or EN equivalents)
  • Terminals: Recessed DIN-style terminals
  • Market: Europe

Key Similarities and Differences

  • Temperature: Both SAE and EN test at −18°C (unlike JIS at −15°C)
  • Cranking current: Both define a cold cranking current at −18°C
  • Group sizing: Different conventions (BCI vs DIN/EN)
  • Terminals: Different layouts

Practical Implication

Although SAE and EN both test at −18°C, their group sizing and terminal conventions differ, so a battery is rarely interchangeable between North American and European vehicles without confirmation. Always confirm:

  1. Group size fits the vehicle
  2. Terminal layout and polarity match
  3. CCA meets the vehicle's cranking requirement

See JIS vs DIN vs BCI and the full standards comparison.

Source & Purchase

For high-volume OEM and private-label sourcing with full analytical documentation, browse the complete battery model catalog on the main website to request specifications and bulk pricing.