SunXtender Technical Manual

Document No. 6-0100 Rev. E
Page 31 of 41
Separator -
An insulating sheet or other device employed in a storage battery
to prevent metallic contact between plates of opposite polarity
within a cell.
Series Connection -
Voltage of the system is cumulative. Capacity stays the same.
Shelf Life -
The period of time (measured from date of manufacture) at a
specified storage temperature after which the cell or battery needs
to be boost charged so it does not suffer permanent capacity loss.
Specific Energy -
The energy storage ability of a battery on a weight basis, usually
expressed in watt hours per pound (or kilogram); sometimes
given on a volume basis in watt hours per cubic foot (or liter).
Starved Cell -
A cell containing little or no free fluid electrolyte solution; this
enables gases to reach electrode surfaces readily, and permits
relative high rates of recombination.
State Of Charge (SOC) -
The available ampere hours in a battery at any given time relative
to its full charge capacity.
State Of Health (SOH) -
The available ampere hours in a battery when fully charged
relative to its rated capacity.
Sulfation -
Refers to the formation of hard lead sulfate crystals in the plates
that are difficult, if not impossible, to reconvert to active material.
Temperature, Ambient -
The average temperature of the battery's surroundings.
Temperature, Cell -
The average temperature of the battery's internal components.
Terminal -
An electrical conductor used in a battery to make electrical
connection to external circuits for charging and discharging.
Trickle Charging -
Method of charging in which the battery is either continuously or
intermittently connected to a constant current charging source to
maintain the battery in a fully charged condition. Not
recommended for use with Sun Xtender® AGM batteries.
Vent Valve -
A normally closed check valve located in a cell which allows the
controlled escape of gases when the internal pressure exceeds its
rated value.
Venting -
A release of gas either controlled (through a vent) or accidental
from a battery cell.
Volt -
Unit of electromotive force, voltage or potential. The volt is the
voltage between two points of a conductor carrying a constant
current of one ampere, when the power dissipated between these
points is one watt.
Voltage Limit -
The upper limit of the charge voltage that is applied to the
battery.