Application 
Ni-Fe rechargeable batteries are widely applicable as engine starting and standby power supply for wind, solar photovoltaic, diesel engine, DC generator, utility and electricity industries, telecommunication, locomotive, railway, metallurgy, mining industry emergency lighting, UPS, switchgear tripping and closing and other renewable energy application. 

Advantages 

Low operation cost, low self-discharge; 
Environmental-friendly; 
They can withstand deep discharge; 
Wide temperature variations from -20 centigrade to 60 centigrade; 
Long cycle life of more than 20 years.