×

Self heating of batteries at low temperatures

  • US 6,002,240 A
  • Filed: 12/12/1997
  • Issued: 12/14/1999
  • Est. Priority Date: 12/12/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. A rechargeable battery pack comprising:

  • a rechargeable battery having a positive terminal and a negative terminal;

    a heater circuit, the heater circuit coupled to the rechargeable battery and operable to receive current from the rechargeable battery;

    a controller coupled to the heater circuit; and

    a temperature monitoring circuit coupled to the controller, the temperature monitoring circuit being capable of measuring a temperature of the battery pack and providing a temperature indication to the controller, the controller causing the heater circuit to heat the controller based upon the indication.

View all claims
  • 12 Assignments
Timeline View
Assignment View
    ×
    ×