Lithium Ion batteries?

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Lithium Ion batteries?

Postby rodegaard » Sun Oct 15, 2017 1:16 pm

I don't remember seeing any talk about using Lithium ion batteries in a marine environment but know some people that have replaced their flooded lead acid units with same. I'm told that they're much lighter than lead acid types.
Comments appreciated.

Rick
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Re: Lithium Ion batteries?

Postby rommer » Mon Oct 16, 2017 10:20 pm

Water and lithium is an explosive combination.

I don't even like lithium batteries in cell phones
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Re: Lithium Ion batteries?

Postby rodegaard » Tue Oct 17, 2017 9:25 am

Hi Rommer

I guess it's the weight thing that makes them attractive to some sailors.
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Re: Lithium Ion batteries?

Postby cbsmith » Tue Oct 17, 2017 10:21 am

Lithium batteries are far more volatile than AGM or lead acid batteries. I would be curious if any lithium batteries are marine rated and whether insurance companies would have an issue with lithium batteries being used.
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Re: Lithium Ion batteries?

Postby gofast24 » Tue Oct 17, 2017 11:41 am

cbsmith wrote:Lithium batteries are far more volatile than AGM or lead acid batteries. I would be curious if any lithium batteries are marine rated and whether insurance companies would have an issue with lithium batteries being used.

Agree, also your house /engine starting battery charger will most likely have to be changed to one that can safely handle LiO batteries,meaning that all your boat batteries would have to be changed out!. Why dont you just go to AGM batteries? A lot lower cost and the house charger and engine starting batteries should do fine with your battery charger, especially if you have a switch, like ours, that has a "AGM" position. I have replaced all flooded (wet cell) batteries with AGM, switched our Charles charger to "AGM" mode, and as of today the 8D AGM house battery and both engine starting batteries doing fine. Trick is to not let the "AGM" batteries get below 12.4 VDC before starting to charge. Either on shore power or gen set! A AGM battery is 50% discharged when the open circuit voltage get below 12.4 VDC (reading has to be taken after 24 hours with no load or charger on).
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Re: Lithium Ion batteries?

Postby lg260ss » Tue Oct 17, 2017 3:53 pm

Group 27 100ah battery, lithium ion, costs around $1k or more. No thanks
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Re: Lithium Ion batteries?

Postby rodegaard » Wed Oct 18, 2017 10:09 am

Thanks for the feedback on this. My plan is to replace with AGMs when it's time. I had heard some sailors talking about Lithium ion types and that's why I brought the topic up.

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Re: Lithium Ion batteries?

Postby gofast24 » Thu Oct 19, 2017 1:13 pm

lg260ss wrote:Group 27 100ah battery, lithium ion, costs around $1k or more. No thanks

Agree, that doesnt include having to change your house / starting battery charger and the propulsion engine mounted alternators as well? Have to wonder when we will see a fully plug in electric vessel, probably not in my life time? In the automotive applications the average load at 60 MPH is around 30/40 HP so the LiO batteries allow a long time between charges but on a boat, we mostly run about 1/2 to 3/4 throttle while at sea. The battery pack would most likely weigh more than the spark ignited gasoline engines we now have?
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