Note the publication date of the Boat US article is early 2012.
Lithium battery technology is evolving pretty rapidly. The current battery tech has greatly reduced the probability of fires and explosions, but the chemistry gets really complex. Leading edge tech is a solid lithium foil that you can actually cut in half (or puncture) with no adverse impacts except a loss of storage capacity; unfortunately that is pretty much being used for phone and portable device batteries and not up scaled to batteries we can use in our boats…yet. The process of switching to Lithium batteries should start with research to understand the different chemistries, and talk to the battery source to find out what technology they use. Rick Brass Washington, NC From: CnC-List [mailto:[email protected]] On Behalf Of Jerome Tauber via CnC-List Sent: Wednesday, October 17, 2018 8:28 AM To: [email protected] Cc: Jerome Tauber <[email protected]> Subject: Re: Stus-List AGM Batteries https://www.boatus.com/seaworthy/magazine/2012/january/hazards.asp Emergent Technologies, Evolving Hazards New lithium-ion batteries pack a lot of energy. Here's why that could be a problem on boats. Sent from my iPhone On Oct 17, 2018, at 8:12 AM, Della Barba, Joe via CnC-List <[email protected] <mailto:[email protected]> > wrote: Some battery facts: 1. Flooded lead acid, AGM, gel, and lithium batteries all have different charge voltages and resting voltages. 2. If you connect different types together, one of those types won’t be charged optimally. 3. If you connect different types together, the one with the higher resting voltage will discharge into the one with the lower resting voltage. 4. Lithium batteries are the best in every way but price. They need a specialized charging and management system as well that isn’t cheap. 5. Gel batteries last longer than AGMs, but they are not as easy to find and are quickly killed by overcharging. 6. AGM batteries are easier to get and are quickly killed by undercharging. 7. The cheapest way to get deep cycle batteries – by far – is to buy golf cart batteries. 8. East-Penn Deka makes gel and AGM batteries for West Marine. They also make GRP 31 AGMs with a private label for Sam’s Club that are the exact same battery for half the price. 9. Adding more batteries and doing nothing else only helps for a weekend. Once you are out long enough to run them down, you need a way to charge them faster than the stock system or you just trade frequent engine use in for less frequent but longer engine use. 10. Solar + LEDs helps *a ton*! Joe Coquina C&C 35 MK I _______________________________________________ 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
_______________________________________________ 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
