CPX-900 supports the following battery rating systems:
- CCA – Cold Cranking Amps (specified by SAE): The amount of current a battery can provide at 0 ºF (–17.8 ºC).
- CA – Cranking Amps: The amount of current a battery can provide at 32°F (0 ºC).
- DIN – Deutsche Industrie-Norm
- SAE – Society of Automotive Engineers – European labeling of CCA
- IEC – International Electrotechnical Commission
- EN – Europa-Norm
- EN2 – Europa-Norm
- MCA – Marine Cranking Amps: The amount of current a battery can provide at 32°F (0 ºC).