Patent ID: 7940028
Filing Date: 2011-05-10
Classification: B60L,H01M,H02J,Y02E,Y02T,Y04S

Abstract:
1. A method of controlling battery pack temperature during charging, the method comprising the steps of: coupling an external power source to a battery charging system, wherein said battery charging system is coupled to a first battery pack comprised of a plurality of metal-air cells and coupled to a second battery pack comprised of a plurality of non-metal-air cells; initiating charging of said first battery pack; determining a second battery pack temperature corresponding to said second battery pack; comparing said second battery pack temperature to a first preset temperature; initiating charging of said second battery pack if said second battery pack temperature is greater than said first preset temperature and not initiating charging of said second battery pack if said second battery pack temperature is less than said first preset temperature; and heating said second battery pack if said second battery pack temperature is less than first preset temperature, wherein said heating step further comprises the step of transferring thermal energy from said first battery pack to said second battery pack.