Patent ID: 8115455

Claim:
A power battery module, comprising: (a) a multiplicity of rechargeable cells having a nominal operating charging temperature, greater than 20° C., two external use terminals for using the cells and at least one electric element for heating of the cells; (b) a circuit for managing charging of the cells, the circuit further comprising: (i) two external charging terminals for charging of the cells, wherein said two external charging terminals are intended to be connected to an external charger, wherein at least one, called second charging terminal, of the two external charging terminals is distinct from the two external use terminals; (ii) a first interruption/connector between said at least one second charging terminal and at least one of the use terminals, called first use terminal; the first interruption/connector being able to be in one or the other of a first interruption position to prevent the flow of current between the second charging terminal and the first use terminal, and of a second connection position for connecting the second charging terminal and the first use terminal; and (iii) a device between the charging terminals and the heating element to connect, at least in the first interruption position of the first interruption/connector, the charging terminals to the heating element to supply the heating element with electricity.