Uninterruptible
Power
Supply, also known as UPS, is a device which maintains a continuous
supply of electric power to connected equipment by supplying power from
a separate source when utility power is not available. The batteries it
is equipped with decide its runtime, as well as efficiency and useful
lifetime. At present, most UPS are equipped with Lead-Acid batteries.
The voltage and capacitance have to be maintained in a certain range
while charging or discharging. Higher readings than that range may
cause thermal runaway or loss of electrolyte, while lower readings may
cause insufficient charge. Both of them shorten the battery durability,
especially the former one.
Although
Lead-Acid
batteries have been broadly accepted in various applications, and their
cost is cheaper than Li-ion batteries, shouldn’t we be
concerned
concern about its efficiency, safety and pollution problems?
