What does CCA (Cold Cranking Amps) mean?

CCA (Cold Cranking Amps) measures a battery's ability to start an engine at -18°C for 30 seconds. Higher CCA = better cold starts. In cold regions, choose a battery with 10-20% higher CCA than OEM.

How to choose the BCI group size?

BCI group size is the physical dimension standard (L×W×H + terminal position). Different vehicles require different group sizes. Wrong size won't fit the battery tray.

How to tell L and R terminal positions?

L (left positive, right negative): positive terminal on left; R (right positive, left negative): positive on right. Wrong type won't fit or cables are too short.

Car Battery Size Finder

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Vehicle → BCI Group Size / CCA / Ah. 15 brands · 70+ models. Supports database search and reference list browsing.

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How to Read Battery Specs

Group (size) — Physical dimensions (e.g. 55D23L = 23cm × 17cm × 22cm)
CCA (Cold Cranking Amps) — Minimum 500A recommended for cold regions
Ah (Capacity) — Amp-hour capacity, higher = longer runtime
L/R (Terminal Layout) — L=left positive, R=right positive

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