B737NG BAT DISCHARGE
Hi there.
Scenario: You are one hour into a three hour flight and the bat discharge light illuminates. A quick check shows -7 amps. What do you do?
My thoughts are that there is most likely a problem with the Battery Charger or with the TR 3 unit. I would be particularly interested in the state of the standby busses to see if they were showing a normal voltage.
Assuming IFR weather everywhere I would most likely return to destination or divert to nearby base. My thinking there is that we could possibly lose the standby system or worse it could be the first indications of a thermal runaway.
My understanding of the system is basic so I would appreciate any input from those more familiar with NG electrics.