batteries
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batteries
Following is a summary of the characteristics of popular battery technologies. For more details, see lead acid, nickel cadmium, nickel metal hydride, lithium ion, lithium polymer, zinc air, CMOS...
Dictionary
Definition: batteries
Following is a summary of the characteristics of popular battery technologies. For more details, see lead acid, nickel cadmium, nickel metal hydride, lithium ion, lithium polymer, zinc air, CMOS battery and memory effect.
CHARACTERISTICS OF RECHARGEABLE BATTERIES
Recharge Self
Energy Cycles Fast Discharge
Density To 80% Charge Per
Type (Wh/Kg)* Capacity (hrs) Month
Nickel
Cadmium 45-80 1500 1 20%
Nickel Metal
Hydride 60-120 300-500 2-4 30%
Lithium
Ion 110-160 300-500 2-4 10%
Lithium
Polymer 100-130 300-500 2-4 10%
Lead Acid 30-50 200-300 8-16 5%
To 50%
Capacity
Reusable
Alkaline 80 50 2-3 0.3%
Data courtesy of
Cadex Electronics Inc. (www.cadex.com).
* Wh/Kg = watt hours per kilogram
A Whole Lotta Batteries
This roomful of lead acid batteries stands ready to drain itself entirely in less than a minute. It serves as interim power for a large datacenter between the time a power outage has been detected and the generators can come up to full speed.
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