Batteries have been used for energy storage for 100 plus years. Durakool’s long heritage of switching DC power for electricity generation & storage was initially with lead acid low voltage DC and more recently, lithium-ion HVDC battery systems. Our DSC contactors switch up to 2000A at 60VDC & our DEVR series can carry as much as 1000A at voltages as high as 1000VDC. Typical applications (also for our Temperature & resistor solutions) include telephone exchanges (48VDC) and solar or wind power buffering. DEVRs are also used for portable, emergency, field back-up power installations where reliability & low weight are important.