20 CELLS IN SERIES = 24 VOLTS X 500 AMP-HOURS = 12'000 WATT-HOURS
20 CELLS / SERIES-PARALLEL. 12 VOLTS X 1000 AMP-HOURS
= 12'000 WATT-HOURS.
Equal to a much larger Lead / Acid battery because it can be more heavily cycled / discharged without detrimental effect and is practically impossible to destroy by under or over charging.
WITH AN INCREDIBLE 30+ YEAR LIFE SPAN , THE NICKEL-IRON EDISON CELL IS A PERFECT LIFE TIME ENERGY PARTNER.
Keen to sell .