What to buy LiFePO4 - SailNet Community
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post #1 of 13 Old 04-20-2019 Thread Starter
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What to buy LiFePO4

I'm sure a bunch of you have figured out which LiFePO4 battery that comes in a 200+Ah 4D configuration is the best as a replacement for LA batteries?
Are there regulators that normal 40 & 80 amp chargers can use with the LiFePO4 batteries, or does it require a whole new charging system? Same with the solar & wind controllers?
What's it really gonna take to make the change? We haven't won the lotto yet, but just maybe, just maybe......
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post #2 of 13 Old 04-21-2019
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You can buy battery packs or buy the cells and configure your own. Cell and pack dimensions based on capacity.

200 seems like a lot of generator time for a boat so large
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post #3 of 13 Old 04-21-2019
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Oops...
Thats batt size..not total...got it now..
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post #4 of 13 Old 04-21-2019
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Calb 180ah ca 13.2/13.6v cell
H 11.02"
W 2.8"
L 7.08"

Weight 12.35 lbs
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post #5 of 13 Old 04-21-2019
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Re: What to buy LiFePO4

Charge voltages intended for lead will reduce longevity.

A Sterling DCDC BB series charger will let you set the voltage custom, from any old 12V charge source.

You want to control the stop charge point, earlier better than later.
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post #6 of 13 Old 04-21-2019
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Re: What to buy LiFePO4

Good start point here

https://marinehowto.com/lifepo4-batteries-on-boats/
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post #7 of 13 Old 04-21-2019
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Iirc you have 5 charging sources...
Wind..solar..dock..alternator..genny

Learn what they are set at and if regulation can be adjusted to a lwvel you want.
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post #8 of 13 Old 04-23-2019
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Re: What to buy LiFePO4

Check this out, lots of great info on this site:

Electrical Design For a Marine Lithium Battery Bank | | Nordkyn Design
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post #9 of 13 Old 05-10-2019
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Re: What to buy LiFePO4

Any update on this? I'm thinking of getting a LiFePO4 also.
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post #10 of 13 Old 05-10-2019
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Re: What to buy LiFePO4

Quote:
Originally Posted by rocullen View Post
Any update on this? I'm thinking of getting a LiFePO4 also.
What kind of update are you hoping for? Charging system info?
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