active materials are held in nickel-plated steel tubes or perforated pockets. The nominal
cell voltage is 1.2V. It is a very robust battery which is tolerant of abuse, (overcharge,
overdischarge, short-circuiting and thermal shock) and can have very long life even if so
treated. It is often used in backup situations where it can be continuously charged and can
last for more than 20 years. Its use has declined due to low specific energy, poor charge
retention, and poor low-temperature performance, and its high cost of manufacture
compared with the lead-acid battery.
nickel-iron battery "how to make"
One of the "problems" with Nickel-Iron batteries is that they last nearly forever. This
means purchases - even for industrial battery banks - tend to be a one-time thing.