Are Lithium-ion (Li-ion), LiFePO4 or Lithium batteries a good solution for thruster battery banks?
Not necessarily. These systems typically come with a Battery Management System (BMS) that will disconnect the thruster in case of any issue with the battery.
For instance, if the thruster draws more current than the BMS allows. Just imagine a sudden cut-out in the middle of a maneuver without any pre-warning.
At Sleipner, we recommend a solution with a simple, separate battery and without a disconnect BMS system (such as the lead acid bank frequently used for starting or similar). The helmsman will then be warned when the battery is getting low and feel that the thrusters are gradually losing power, which is significantly better than losing your thrusters without any pre-warning.
Disclaimer: Ensure battery/energy source is installed according to CE/ISO current rules and regulations and by licensed electricians.