Firefly Oasis carbon foam AGMs are a good compromise-they can be drawn down to 30% capacity without harm. There are many other advantages over more common AGMs. I have four of them in a single bank—I’ve had them for 5 years now. I would never go back to another type of battery!
Bob Bob Boyer s/v Rainy Days C&C Landfall 38 (Hull # 230) (Spending winters in the Bahamas, summers in Baltimore, and somewhere on the ICW in between) blog: dainyrays.blogspot.com email: dainyr...@icloud.com > On Sep 4, 2020, at 10:41 AM, CHARLES SCHEAFFER via CnC-List > <cnc-list@cnc-list.com> 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 > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each and > every one is greatly appreciated. If you want to support the list - use > PayPal to send contribution -- https://www.paypal.me/stumurray >
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