What is On load / Off load test of GMDSS ?

1.  On Load/ Off load test
2. If voltage fall more than 10%, that indicate battery is not fully charge or weak, require recharging.
3. If after recharging if condition in same, required replacement of battery.

On Load :-

1. All equipments connected to the battery.
2. Battery connections to equipments, leads to reduction in voltage, depending on condition and load of battery.
3. Charger should be kept off.
4. The voltage drop of the battery to be monitored
5. Load test can only be done when battery in fully charged.

Off Load :-

• Battery is not connected to any equipments is battery is floating.
• Fully charge 24v battery will show slightly more than 247 volts.