TrakPower VR-1 Dual Racing Charger - Manual (Page 15)

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insulated wire has lower resistance, as do gold plated terminals and copper conductors. Larger
gauge wire (with a smaller numerical value) also provides lower resistance. A battery whose
internal resistance gradually worsens over time will be showing signs of aging, and could also
results in poor charge and/or discharge capabilities and may need replacement soon.
CYCLE DATA 2/4:
This stores charge and discharge data. Cycle data has a total of 11 memories. The memory is
ROM and even if powered off, the data will remain. Memory 0 is the latest data and memory 10 is
the oldest data. Data which has happened after 10 cycles will be removed in order.
F. CHARGE DATA: Records the amount of time needed to complete a charge function, not counting
the time a battery is in trickle charge (NiCd and NiMH) or top-off charge (NiMH only). Shown
in seconds.
G. DISCHARGE DATA: Records the amount of time needed to complete a discharge function.
Shown in seconds.
TRACE DATA 3/4:
This is to check battery condition. Information displayed is last charged capacity, last discharged
capacity, highest charged capacity up to now, highest discharged capacity up to now, minimum
internal battery resistance up to now, charged number and date of using battery for fi rst time.
DATA VIEW 4/4:
H. GRAPHIC DATA VIEW: VR-1’s graphic display can also show voltage curve, current and
temperature waveforms after a charge or discharge function has ended (not for cycles). In the
upper right corner, graph type is displayed by “GR”. Following GR is which graph is currently
displayed: V is for voltage, T is for temperature and I is for current. To change the graph from
voltage, current and temperature press and rotate the jog dial until “graph type” is displayed
on the screen. The cursor will be in the upper right hand position. Rotate until the desired
graph type is displayed and re-press the dial to confi rm the change.
I. ZOOM: The zoom factor is located in the lower-right. This enables you to zoom the graph for
fi ner measurement readings. “x1” is the closest view. “x43 is the widest view”. AT is auto-
zoom. This is time of X axis and 1-43 zoom can be set. The wider the zoom, the less accurate
the graph becomes.
J. AUTO/MANUAL: If Auto mode is selected, there are no other adjustable features for the graphing
view. If “manual” mode was selected, features such as y-axis value, center value, point value
and position may be adjusted as needed.
The total length of time that battery voltages will be graphed in this screen will be from the start
to fi nish of either charge or discharge. For NiCd/ NiMH batteries, the overall graph should be
shown in single display. For lithium batteries, the overall graph period is designed for a maximum
of 3 hours based on a 1C rate (data past 3 hours won’t be displayed). Information is NOT shown
in graph form for re-peak charge mode, time delays, top-off charge, cycles, or discharge-before-
charge steps.