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Iron Edison talks about their Ni-Fe batteries lasting 25+ years. http://ironedison.com/iron-edison-usa-series-nickel-iron-nife-battery http://ironedison.com/ir

• toomuchtodo 11y ago
  But do they actually warranty them for that long? I could find no mention of a warranty on their site.
• kondro 11y ago
  They provide a 10 year warranty on their Ni-Fe batteries… but their spec sheets allow for a much longer lifespan: https://ironedison.com/renewable-energy-batteries https://ironedison.com/renewable-energy-batteries
• marze 11y ago
  Price reference? Looks like they are 2x Tesla's price.