Quote:
Originally Posted by scrubjaysnest
The 2 volt cells are typically used in solar power homes or off grid cabins.
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Yeah, and apparently large luxury yachts too. What 2-Volt batteries appear to offer most is being able to create very large-capacity systems without having dozens of batteries, particularly at lower system voltages, which would lead to many parallel strings. As RV battery-bank capacity get larger, it may make sense to look at 2-Volt batteries also (assuming lithium doesn't replace lead batteries first).