Battery knowledge · Other and emerging chemistries
Cold cranking amps
The rating of a starter battery: the current it can deliver for 30 seconds at −18 °C while staying above 7.2 V for a 12 V battery. It measures power in the cold, which is what starting an engine needs, not energy.
- Abbreviation
- CCA
- Unit
- A
Example
Other and emerging chemistries: an example situation
Two chemistries can meet the same energy target with different voltage windows and charge termination.
Read Cold cranking amps alongside Auxiliary battery in this context. The small 12 V or 48 V battery in an electric vehicle that powers the controllers, lights and locks and wakes the BMS, kept charged from the high-voltage pack through a DC/DC converter. A flat auxiliary battery immobilises the car however full the main pack is.
Use in Lemonergy
Do not carry lithium-ion assumptions into every chemistry.
This is a reference concept. No executable Lemonergy block has been verified for this term.
References & further reading
Further reading on this topic
These sources provide broader context; they are not presented as citations for every statement in this entry.
- Promise and reality of post-lithium-ion batteries with high energy densities
Jang Wook Choi, Doron Aurbach · Nature Reviews Materials · 2016
Topic background · Post-lithium-ion materials and battery concepts, including practical cell-level limitations; historical 2016 perspective.
- DOE/EPRI 2013 Electricity Storage Handbook in Collaboration with NRECA
Sandia National Laboratories · 2013
Topic background · Storage technologies and grid services. The publisher notes that its historical cost and deployment figures are outdated.