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Lead-Acid Battery Knowledge

CCA, groups, ratings, technology and applications for automotive and truck lead-acid batteries.

CCA cluster

  • What is CCA (Cold Cranking Amps)?
  • CCA vs CA vs MCA: the temperature ladder
  • How CCA is tested
  • CCA by battery group
  • CCA and temperature

Battery groups

  • Battery group sizes explained (H4–H9, L1–L6, JIS, BCI)
  • H6 vs H7 vs H8

Ratings

  • Reserve capacity (RC)

Technology

  • AGM vs EFB vs Flooded
  • Battery sulfation (the #1 failure mode)

Charging & maintenance

  • How to charge a lead-acid battery (bulk / absorption / float)
  • What is battery sulfation (the failure you can prevent)

Applications

  • Start-stop battery
  • Deep cycle vs starting battery

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