"Sympatico News" wrote in message
...
Just to add to the previous comments.

A battery is a collection of of stuff. I.E. "The doctor has me scheduled
for a a battery of tests to figure out whats wrong". For example your
typical 1.5V "thing" is actually an electrical cell, however practically
everyone calls it a battery.

A car battery is 6 cells connected in series, the voltage of each cell
adds to the others and you get 12 volts. Each cell is really big so you
also get a lot of amperage.

Electrical current is measured several ways, the main two a

1. Voltage

How hard do the electrons want to move a.k.a. pressure; and

2. Amperage

How many electrons go by, a.k.a. volume.
======================
Slight correction of terminology; Electrical current is measured in Amperes,
Electrical potential is measured in Volts. Just mainly a semantics thing,
but if you're talking to a tech, and mention current, he'll hear amps (or
milliamps, microamps, depending on amount),
and Voltage is the amount of push the electrons get. All these are
mathmatically relatedby Ohm's law. Voltage is a function of current X
resistance E=IR, where E is voltage, I is current, and R is resistance.
Power is a function of voltage and current and Voltage,or P=IE, where P is
power (Watts), I is current (Amps), and E is potential (Volts). Example; a
device pulls 5 amps on a 120 Volt line = 600 Watts. If you know any 2
factors, you can calculate the third by plugging it into the formula. Hope
this helps.

Ken Moon
Webberville, TX.