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Old Today, 14:54   #1
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Join Date: Jun 2024
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Liveaboard power requirements

I am purchasing a koopmans 38 with 300watt of Solar and 3 x 110ah house batteries. This will give me around 330ah with roughly 155ah usable - that translates into about 2000watts. I am upgrading the solar to 600watts to ensure I can recharge the bank in around 3hours (depending on the day and conditions)

Cooking and water heating are done by gas.

12V TV is around 80watts
starlink averages about 80watts
LED lights - 10watts each (say 5 on at a time) - 50watts
phone/laptop use - 50watts

That totals around 260watts of use per hour. Realistically the TV,laptop use etc won't be on permanently so if I average it out to 200watts I should be able to go 10hours before needing a recharge. Usage will mostly be during the evenings and I am off the boat at work from 7 to 6 daily (except weekends)

Keen to hear others power use and pitfalls so I can plan accordingly.

I am planning to upgrade the battery bank to a LiFePO4 to get more usable energy per battery but that's next years project.

EDIT: to add, the motor has a 100A alternator installed so in worse case scenarios i can run the motor for a bit to recharge the bank.
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