pianotuna wrote:
Stir find me an Li battery that provide 9C for 5 seconds, 4C continuous, and be charged at -40. You may find that is unobtainable.
As to size, I have room for 7 Group 31, so that is not an issue.
Why would I need 9,000 amps, or even 4,000 for that matter??
If my battery actually drops to even -20 my energy and heating systems have failed to the point I am already rolling out. I mean propane does not even vaporize at -40. I would have to assume utility power is available at these temperatures(no battery required). Temps at -40 is an expedition vehicle and preparation is far beyond virtually all RVs. No reason to proclaim this as an ordinary criteria for an RV on this forum. Better suited to an expedition vehicle forum.
https://www.globalxvehicles.com/uxv-max.html