GMDSS & Emergency battery

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. 1 hour in case GMDSS has the power from emergency generators
  2. 6 hours in case GMDSS does not have the power from emergency generators.

Now how do we test the GMDSS batteries to be sure that these won’t die down before the required time. Some of us confuse this test with the On load/Off load daily test of the batteries.

They argue that we need to switch off the AC power to GMDSS and operate the GMDSS for 1 hour (or 6 hours) . But this is not correct.

Yard provides the specifications of the required batteries during  delivery of the vessel. If we have renewed the batteries with same specifications, we can be sure that the batteries would last for the required period.

Of course this would not be the case if the capacity of the batteries has reduced during the life of the batteries. To be sure that the capacity of the GMDSS batteries is OK, a capacity test is performed every year.

This is important test which ensures that in emergency your GMDSS batteries would last up to the required time.

Wishing you all fair winds following seas

Related Blogs

Follow us Today on
our social network

Capt Rajeev Jassal

About Capt Rajeev Jassal

Capt. Rajeev Jassal has sailed for over 24 years mainly on crude oil, product and chemical tankers. He holds MBA in shipping & Logistics degree from London. He has done extensive research on quantitatively measuring Safety culture onboard and safety climate ashore which he believes is the most important element for safer shipping.

Search Blog

5 Comments

Amar anand
Amar anand
3 years before

Nice One

Isabella Lucas
Isabella Lucas
2 years before

My ex-husband and I had always managed to stay friendly after our divorce in February 2017. But I always wanted to get back together with him, All it took was a visit to this spell casters website last December, because my dream was to start a new year with my husband, and live happily with him.. This spell caster requested a specific love spell for me and my husband, and I accepted it. And this powerful spell caster began to work his magic. And 48 hours after this spell caster worked for me, my husband called me back for us to be together again, and he was remorseful for all his wrong deeds. My spell is working because guess what: My “husband” is back and we are making preparations on how to go to court and withdraw our divorce papers ASAP. This is nothing short of a miracle. Thank you Dr Emu for your powerful spells. Words are not enough. Email emutemple@gmail.com Phone/WhatsApp +2347012841542.

Ronald monica
Ronald monica
1 year before

MY LOVER IS BACK... My name is Ronald Monica from USA. I am really pleased with this service. I am one of those people who said, I’ll never call a psychic or a magician or whatever” to help me with my problems – least of all my love problems, but I reached the point where I knew I needed some guidance, and I’m so glad I found this man called Dr balbosa, I never in a million years would have thought I’d be writing a letter like this, but when I nearly lost Andrew, my love in one of our stupid fights (he broke up with me), I thought I had lost everything. i cry all day and think that he will never come back to me again. I read a testimony by a man called Tyce Logan about him saying how Dr balbosa helped him to get back is ex wife within 48 hours .I quickly email Dr balbosa and explained everything to him And when I was at my most desperate situation he didn’t take advantage of me. Dr Balbosa is the best and genuine spell caster. He performed a very good service for a person in true need. I don’t know how you did it, or how this magic works, but all I know is, IT WORKS!! Andrew, my husband and I are happily back together, and I’ll always be grateful to Dr balbosa... don't fail to contact him for any kind of help, Dr balbosa is very capable and reliable...From Monica WHATSAPP AND CALL: +1(780) 628-5506 EMAIL: balbosasolutionhome@gmail.com WEBSITE: https://balbosasolutionhome.com

Maria dominguez
Maria dominguez
1 year before

My ex-husband and I had always managed to stay friendly after our divorce in February 2018. But I always wanted to get back together with him, All it took was a visit to this spell casters page, because my dream was to have my husband back in my life, and live happily with him.. This spell caster requested a specific love spell for me and my husband, and I accepted it. And this powerful spell caster began to work his magic. And 48 hours after this spell caster worked for me, my husband called me back for us to be together again, and he was remorseful for all his wrong deeds. My spell is working because guess what: My “husband” is back and we are making preparations on how to go to court and withdraw our divorce papers ASAP. This is a miracle. Thank you Dr Robbinson for your powerful spells. Words are not enough. if any one here need help to fix his or her marriage/relationship your solution is here WhatsApp: +12267705795 Email:drrobbinsonspiritualhome@gmail.com https://www.facebook.com/Drrobbinson

Gerald Muswagon
Gerald Muswagon
1 year before

I want to genuinely thank Dr Ayoola for making my dream come through. I was on the internet when I saw people posting and talking about Dr Ayoola. On How he has help them in winning lottery. My name is Gerald Muswagon this is my story on how I win $10 million After reading the article about Dr Ayoola I contacted him I told him to help me win lottery he respond to me by saying he will help me after working with him he assured me that I will win. Which I believe. After working with Dr Ayoola he gave me a number and ask me to go and play it which I did today I’m here shearing a testimony about this same man Dr Ayoola help me to win $10 million dollars all thanks to you Dr I will keep taking about your good because you are a man of your word I hope people that really need this will come across it for you to help them as well. If you want to win big in lottery contact Dr Ayoola today and be rest assured of winning contact him via email drayoolasolutionhome@gmail. com or https://www.facebook.com/Dr-Ayoola-105640401516053/ text or call +14809032128

Leave Comment