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Most marine lithium batteries are LiFePO, not lithium ion. They're far more stable and safe to have on a boat. Compared to lead acid, they have better charge ef
by darksaints 7y ago
Most marine lithium batteries are LiFePO, not lithium ion. They're far more stable and safe to have on a boat. Compared to lead acid, they have better charge efficiency, deeper cycles, longer lifespans, higher energy density and specific capacity. Furthermore, I've never found lead acid batteries that come close to 1/10th the price...1/4 is more like it.
- gnaritas 7y agoFair point on the LiFePO, but none of those other things really matter as they're easily made up for by a larger bank, what matters is the cost per amp/hour and lithium isn't remotely there yet. The exact fraction varies, but lithium isn't going to touch some Costco golf cart batteries at a $100 a pop. You can buy an entire house bank for the cost of 1 lithium LiFePO battery (nearly 1k on Amazon). Unless you just like wasting money, deep-cycle lead-acid is a far better choice.