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Old 30-06-2023, 10:32   #1
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Join Date: May 2017
Location: NE Florida
Boat: 1980 Endeavour 32
Posts: 1,036
I'm definitely switching to Lithium...so impressed !

Ok, long post, but I want to give some context and background.

I have run a pool cleaning business for 25 years plus. We use a machine called a Hammerhead, it is essentially a trolling motor mounted in vacuum head that pulls up debris into a bag. And of course you run it from a deep cycle battery, it's set-up for Group 27's. I have attached a picture.

Currently I was using a Duracell AGM battery - it weighs 58 pounds and I believe it is about 85AH capacity. I wanted to lighten my load and make my job easier so I finally decided t try a lithium battery. Going by what I have learned I figured a 50AH battery should do the job.

This is what I bought...
https://www.amazon.com/ECO-WORTHY-Tr...id_rp_0_1_ec_i

It has worked well beyond my expectations. Typically I have charged my batteries at the end of any work day, they usually need it. With this battery I have gone 3 days without charging just to see how it would do. Amazing !! I could never have done that with using the old traditional deep cycle batteries.

Right now I am running an experiment to see how long it will power my portable fridge. I have a Iceco GO20, picture is attached. I have it set for 35 degrees. It doesn't really run that cold of course, typically it seems about 38-42 degrees, but I can tell you the drinks I have in it are nice and cold. The battery voltage is down to about 13.25v running and about 13.35 when it's not.

So far it is coming up on 24 hours and still running. It is sitting outside on my porch to simulate being on the boat. The weather here in NE Florida has been in the 90's during the day, down to low 70's at night. I have opened the lid many times, including propping it open for over an over because I forgot to close it !

This has definitely convinced me to make the switch to Lithiums for the boat. 4 of these batteries in 100AH would run less than $1200.

I hope this helps anyone else wondering if it's worth it.

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