All parts › BMW M4 CSL › Electrical system › Battery
Battery
Part of Electrical system · about $320 to replace
What it is
AGM battery, trunk-mounted on the road car.
What it does
Starts the engine and buffers the 12 V system.
How it fails
Replace at 5–6 years; short trips kill AGM batteries.
| Material | Lead-acid AGM |
|---|---|
| Spec | 12 V |
| 90 Ah | |
| 900 CCA | |
| 25 kg |
