Are your emergency & GMDSS batteries in good shape ?

Emergency batteries as well as GMDSS batteries onboard serve an important function. During a black out, emergency generator need some power source to start automatically. Emergency batteries acts as the source for thi required power to the emergency generator. If the emergency batteries are week, emergency generator may not start in auto mode. We would then need to start the emergency generator manually from emergency generator room. This can take away vital time which may result in disastrous situations. There are many ships where on load testing the emergency generator require black out of ESB. If so, We should carry out this load test atleast every 3 months. The procedure to load test the emergency generator will be to disconnect ESB from main switchboard and then observing if emergency generator starts automatically. If it doesn't start, among other things we should also check the condition of batteries. There are battery tests that the seafarer responsible for batteries must know.  Regular testing of the emergency generator should also include tests to ensure if batteries can supply power to start emergency generator. This goes for GMDSS batteries too. As per SOLAS GMDSS batteries should provide power to operate GMDSS for 1 hour in case GMDSS has the power from emergency generators...