VeriFone VX 680 Reference Manual page 178

VX 680 S B I
MART ATTERY
General Battery Terms and Definitions
NOTE
NOTE
NOTE
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VX 680 R
EFERENCE
NFORMATION
Charge
The amount of usable electrical energy stored in the battery, expressed in
coulombs.
Charge Rate
This refers to the amount of current applied to the battery during charging.
Charge rate for the VX 680 terminal's battery: Initially 1A tapering to zero at end
of charge.
Charge Time
The amount of time required to charge a battery. Maximum charge time refers to
the amount of time to fully charge a fully discharged battery.
Typical charge time for the VX 680 terminal's battery: 1800 mAh in approximately
2.5 hours.
Charging
Refers to the process of converting electrical energy, in the form of electric
current, from an external source (charger) into chemical energy within a battery
cell.
Current
The flow of electrons through a conductor, measured in amperes
Cycle Life
This refers to the number of charge/discharge cycles the battery can endure
before it loses its ability to store useful charge.
The VX 680 terminal's battery pack will retain approximately 75% of its original
charge after 300 cycles.
Dead Battery
A battery is considered "dead" when it deep discharges to the point that it can no
longer accept a charge or when it has reached the end of its cycle life.
Deep Discharge
The state of a battery that has been discharged well below its useful charge level.
When a battery is in this state, it may be difficult to recharge. This characteristic
typically indicates a reduced cycle life.
G
UIDE