Batteries

Question 1

Battery checks and testing with a load?

Answer 1

• Visual inspection, looking for leaks, damage, corrosion on terminals, secure
• Measure voltage to see state of charge
• Measure the voltage drop across the terminals when a load is applied. A large voltage drop indicates a weak or failing battery

Question 2

Draw diagram of battery charger?

Answer 2

See one note

Question 3

Li-ion Batteries storage requirements?

Answer 3

Batteries greater than 100Wh
- To be removed (If possible) and stored in designated locker
- Batteries comply with IEC
- Not located fwd of collision bulkhead
- Inside Category A Machinery Spaces
- Not stored in adjacent boundary’s of Category A Machinery Spaces.
- Not stored in space containing source of electrical power, transformers or MSB.
- Where charging and storage spaces are fitted with shell door(s) they are to be equipped with additional shell door emergency controls which should be able to be operated from outside of the space to open shell door(s) to enhance natural ventilation
- Stored in less that 45 degrees C

Question 4

Li-ion Battery fires

Answer 4

Li-ion battery fires can be self-sufficient and continue to burn without access to additional oxygen, they may also continue to generate high amounts of heat following fire-extinction and are at risk of re-ignition

Question 5

What MGN is related to Li-ion batteries?

Answer 5

MGN 681