Lithium have a different charge profile, so chargers and regulators need to
be adjusted or you will fry the lithiums.

Joel

On Fri, Sep 4, 2020 at 10:41 AM CHARLES SCHEAFFER via CnC-List <
[email protected]> wrote:

> I've been following a few RV channels on YouTube and learning about
> lithium batteries?   Some people are living "off-the-grid, living large
> with solar panels and inverters.  Just learned that lithium batteries are 40
> pounds less weight per battery and last three to five times as many years,
> (3000 to 5000 cycles vs 1000 cycles for AGMs).  AGMs and Lead Acid
> shouldn't be drained below 50% so you really need four 100ah AGM batteries
> to have 200ah available.  Lithium can be drained down to nothing without
> harm, so two give you 200ah.  If I was keeping my boat, or doing any long
> cruises, I'd definitely look into those.  I got eleven years from my first
> AGM batteries so Lithium should last me thirty years.  One Lithium battery
> presently costs $950 for Battleborn vs $300 for a quality AGM and two
> lithium batteries ($1900 and 58# total weight) equal the amp hours of four
> AGMs ($1200 and 276# total weight).  Lithium is actually $500 cheaper if
> you keep the boat long enough to have to replace the AGMs twice (cost
> $2400) and they are 218# lighter.  That's a hell of a weight savings for
> racers.
>
> Prices keep falling for this new technology, so it's simply a matter of
> time.  I think one Lithium might replace my two AGMs at some point in the
> near future.
>
> Chuck Scheaffer, Resolute 1989 C&C 34R
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-- 
Joel
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