Very good point!! Not many suppliers of Ni-Fe batteries, may cost more than the over sized battery. Remember to keep more electrolyte around to replace it every 10 years.
One slight down side to Ni-Fe battery is the charging efficiency is 80%, not changing over life nor state of charge (anybody know differently?). Another source suggests 70%. Or should I say the efficiency is an advantage if you want to keep the battery topped off?
Have fun, Scott.[ Parent ]
www.beutilityfree.com/nife.html is a source that imports them from China.
Most of the electrolyte is KOH with a dash of LiOH, so it wouldn't be too tough to store a lifetime supply as dry powder.[ Parent ]
