A CDE Definition
A rechargeable battery technology that dates back to the mid-1800s. Liquid-filled lead acid batteries are used in vehicles, but gel-filled units, which came out in the early 1970s, provide the most economical battery for UPS systems and electric carts (scooters, wheelchairs, etc.). Lead acid was also used in some early portable computers. Providing the least amount of charge per pound of the rechargeable batteries, the lead acid technology uses lead plates and an acid electrolyte. See 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, liquid metal battery, zinc air, CMOS battery and memory effect.
CHARACTERISTICS OF RECHARGEABLE BATTERIES
Energy Cycles Fast charge
Density To 80% Charge Per
Type (Wh/Kg)* Capacity (hrs) Month
Cadmium 45-80 1500 1 20%
Hydride 60-120 300-500 2-4 30%
Ion 110-160 300-500 2-4 10%
Polymer 100-130 300-500 2-4 10%
Lead Acid 30-50 200-300 8-16 5%
Alkaline 80 50 2-3 0.3%
Data courtesy of
Cadex Electronics Inc. (www.cadex.com).
* Wh/Kg = watt hours per kilogram
A Lot of Batteries
Before/After Your Search Term
|LDDS||leaded chip carrier|
|LE Bluetooth||leading zeros|
|lead||leadless chip carrier|
Terms By Topic
Click any of the following categories for a list of fundamental terms.