Comparing wet to dry batteries?

Alex_Blackwood

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Here’s what I’m trying to compare: a power station that has a useable capacity of 1.5kwh at 230v
Vs lead acid batteries through an inverter.
To get the same 1.5kwh from lead acid am I right in saying that I’d need three 100ah 12v batteries? i.e. 3x50x12? Minimum!

Of course the power station has significant advantages, it’s lighter; has lots of charge/discharge sockets; and crucially can charge its full capacity in 70 minutes. Doing that with lead acid would boil the acid off.
See #13 and PR's posts. Its ampere hours you are interested in not Kwh. I doesn't matter what sort of battery it is in the "Power Station" All you need to know is what ah capacity of LA you need to run a similar inverter. Unless of course you choose to fit a LiPo4 system then as a ball park figure you could perhaps, maybe, reduce the capacity.
How are you going to charge the PS.?
 
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Colvic Watson

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See #13 and PR's posts. Its ampere hours you are interested in not Kwh. I doesn't matter what sort of battery it is in the "Power Station" All you need to know is what ah capacity of LA you need to run a similar inverter. Unless of course you choose to fit a LiPo4 system then as a ball park figure you could perhaps, maybe, reduce the capacity.
How are you going to charge the PS.?
Onboard generator; needs to run for an hour each day to heat the water.
 

PaulRainbow

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Onboard generator; needs to run for an hour each day to heat the water.
You need to reconsider how you do things. A power station doesn't make much sense, a LifeP04 battery should do what you want, for much less money.

But we still have the barest information about your setup and usage pattern, so hard to help much.
 

Alex_Blackwood

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You need to reconsider how you do things. A power station doesn't make much sense, a LifeP04 battery should do what you want, for much less money.

But we still have the barest information about your setup and usage pattern, so hard to help much.
Information "Drip feed" We now have a generator in the mix. What next, Solar panels tomorrow and wind power next week? :unsure:
 

Iliade

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Next month...

pwr-diagram.jpg


Does occupy quite a lot of the aft cabin though.
____________

If you can afford them, soon to be predicated lithium chemistry batteries are definitely the way to go at present. Lead acid is best if you have lots of space & weight carrying capacity and are not falling over piles of money in the companionway.

Fancy, so called 'generators' involving batteries and inverters, all hidden away in a plastic case, are great if you want silent and portable 240V, but something more prosaic would be ideal for most larger boats. Think of them as the iPhone of electricity storage systems... Stuff happens and, by and large, they do what you want done though they are far from the best solution the market can provide.
 

Colvic Watson

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Information "Drip feed" We now have a generator in the mix. What next, Solar panels tomorrow and wind power next week? :unsure:
I understand that casual aggression on the internet is now commonplace; but I won’t take part in that. Instead I hope you have a great day, I wish you kindness and good fortune and hope you encounter beauty today that lifts your spirit. You’re worth all that’s good in the world.
 

Colvic Watson

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But we still have the barest information about your setup and usage pattern, so hard to help much.
Thank you, I asked a specific question at the beginning and got two clear answers that clarified my understanding and ensured that I could make an informed decision. Some people wanted more information from me but I’m very happy with the answers and as usual the forum was very helpful.
 

oldmanofthehills

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I understand that casual aggression on the internet is now commonplace; but I won’t take part in that. Instead I hope you have a great day, I wish you kindness and good fortune and hope you encounter beauty today that lifts your spirit. You’re worth all that’s good in the world.
You take things a bit too seriously. Much of the idle speculation and rambling was because you were rather unspecific in your original query, so we fantacised in your absence. By definition this is fairly techy forum - and tech depends on specifics
 

PaulRainbow

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Thank you, I asked a specific question at the beginning and got two clear answers that clarified my understanding and ensured that I could make an informed decision. Some people wanted more information from me but I’m very happy with the answers and as usual the forum was very helpful.
You clearly don't understand and without knowing the actual specs of the power station no-one can accurately answer your question. It's almost certain that the power station isn't the best answer for boat use and most likely not the most cost effective solution.

Your refusal to give any detail and your attitude in the above reply is unacceptable and rude.
 

Alex_Blackwood

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I understand that casual aggression on the internet is now commonplace; but I won’t take part in that. Instead I hope you have a great day, I wish you kindness and good fortune and hope you encounter beauty today that lifts your spirit. You’re worth all that’s good in the world.
Please read #30, amongst others. No aggression, casual or otherwise, was intended. See also #19 ;)
 

Alex_Blackwood

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Thank you, I asked a specific question at the beginning and got two clear answers that clarified my understanding and ensured that I could make an informed decision. Some people wanted more information from me but I’m very happy with the answers and as usual the forum was very helpful.
Thank you for clarifying that. As you obviously require no further help. Can I suggest, thread closed?
 
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