TROUBLE SHOOTING GUIDE FOR THE BATTERY SAVER

BATTERY SAVER MODEL 1 (BS1) -

PROBLEM - DEAD BATTERY

• POSSIBLE REASON - THE LOAD DISCONNECT RELAY COULD HAVE FAILED

If the red light is on, but the load is not disconnected, the LVD relay may have failed. Check for battery voltage at the LOAD (+) and LOAD (-) terminals of the BS1. If there is not voltage at the load terminals when the light is on, the BS1 is operating and the battery is dead for another reason.

• POSSIBLE REASON - BS1 DISCONNECTED THE LOAD, BUT RECONNECTED THE LOAD AT VERY LOW VOLTAGE, ALLOWING THE BATTERY TO GO DEAD

Under normal conditions, the BS1 disconnects the load when the battery voltage drops to the low-voltage set point, as factory set or adjusted by the installer. The relay energizes to disconnect the load. If the system does not charge up, and the battery voltage continues to drop, when it reaches the minimum operating voltage for the BS1, the relay will drop out and the load will be reconnected.

PROBLEM - BS1 CYCLES ON AND OFF RAPIDLY, OR DISCONNECTS THE LOAD TOO SOON

• POSSIBLE REASON - VOLTAGE DROPS IN THE LINE FROM THE BS1 TO THE BATTERY CAUSE ERRORS IN VOLTAGE MEASUREMENT

Measure the voltage at the BS1 and at the battery when the load is running to determine if there is a voltage difference between the two.

• POSSIBLE REASON - OLD BATTERY

An old battery will change voltage rapidly with little load or charge current.