×

Apparatus and method for protecting a battery from overdischarge

  • US 20040140904A1
  • Filed: 01/22/2003
  • Published: 07/22/2004
  • Est. Priority Date: 01/22/2003
  • Status: Active Grant
First Claim
Patent Images

1. A battery discharge indicator, comprising:

  • a positive connector configured to couple to a positive terminal of the battery;

    a negative connector configured to couple to a negative terminal of the battery;

    a voltage sensor configured to couple to the battery via the positive connector and the negative connector and to sense a battery terminal voltage; and

    a microprocessor, coupled to the voltage sensor, configured to provide a first alarm signal if a magnitude of the battery terminal voltage is below a first threshold voltage level for a first time interval and if the magnitude of the battery terminal voltage is below a second threshold voltage level for a second time interval.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×