What is a battery? Battery can be any device that stores energy for later use. The word battery is limited to an
electrochemical device that converts chemical energy into electricity, by use of a
galvanic cell. A galvanic cell is a fairly simple device consisting of two electrodes (an
anode and a cathode) and an electrolyte solution. href="http://www.abatteryweb.com">Batteries consist of one or more galvanic cells. A battery is an electrical storage device.
Batteries do not make electricity, they store it. As chemicals in the battery change,
electrical energy is stored or released. In rechargeable batteries this process can be
repeated many times. Batteries are not 100%
efficient - some energy is lost as there are heat and chemical reactions when charging and
discharging. If you use 1000 watts from a battery, it might take 1200 watts or more to
fully recharge it. Slower charging and discharging rates are more efficient. A battery
rated at 180 amp-hours over 6 hours might be rated at 220 AH at the 20-hour rate and 260
AH at the 48-hour rate. Typical efficiency in a lead-acid battery is 85-95%; in alkaline
and Ni-Cd battery, it is about 65%. more info:www.abatteryweb.com
