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Home Forums General Discussion Off Grid, but keeping all mod cons??? Re: Off Grid, but keeping all mod cons???


Someone mentioned that lead acid batteries seldom last more than 5 years. With care they can be kept going about 8 years but rarely as much as 10 years.

Ther is a class of batteries that can last much longer but these have fallen out of favour in recent decades. I am talking about nickle iron or NiFe for short. The life span of these is uncertain because 75 year old Edison cells as they were also called are still in use. Recently a few companies have begun to resurrect the technology. Nickle and Iron is far less hazarous to the environment that lead and sulphuric acid. According to use experience from the past the electrolyte in NiFe cells needs to be replaced every decade or so. The plates themselves only need flushing and maybe a scrub cleaning. To facilitate this service the cell tops are removable.