Printronix PrintCart - Manual (Page 53)

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Glossary
AC Alternating Current, current that reverses direction
periodically. The output of the inverter system or a
wall receptacle is AC power.
AGM Absorbed Glass Mat, the type of lead acid battery
used in the PrintCart. The electrolyte in the battery is
absorbed into a fiberglass sheet in proximity to the
lead plates.
Amp Ampere, a measure of electrical current. One
coulomb of charge per second equals 1 Amp.
Amp-Hour A term used to describe the charge storage capacity
of a battery. For example, a 100 amp-hour battery
should be able to deliver a current of 10 amps for 10
hours or 5 amps for 20 hours, etc.
Battery An electro-chemical storage device that stores
electrical charge.
Charger An electrical device that supplies electrical current,
used to replace the charge in batteries.
Circuit Breaker An electronic device designed to open or break a
circuit when the current flowing through the device
exceeds a specified amount, and which can be reset
to allow current to flow.
Coulomb A unit of electrical charge equal to the quantity of
electricity transferred by a current of 1 Amp in
1 second.
Current The amount of electrical charge flowing through a
wire or circuit per unit time. It is measured in
Amperes.
DC Direct Current, current that flows in a single direction.
Depth of Discharge A term used to describe the percentage amount of
the total charge that has been drained from a battery.
For example, if the depth of discharge of a battery is
70%, that means that 70% of the total charge has
been drained leaving approx. 30% remaining in the
battery.