Great Planes Triton Charger - GPMM3150 - Manual (Page 14)

Lead Acid – Set for 10° F above room (or field) temperature. Note: Failure to make
adequate contact between the black tip on the white probe to the battery will prevent
this feature from functioning properly. Do not connect the thermal probe to the
charger if temperature monitoring will not be used.
The following functions are applicable to NiCd and NiMH batteries only:
4. PEAK DELAY AT START: During the early moments of fast charge a battery’s
voltage can temporarily be unstable which can cause some peak chargers to pre-
maturely terminate fast charge. Delaying the time at which Triton’s peak detection
circuitry is activated at the beginning of fast charge can help to avoid this situation.
Select a peak delay time, which ranges from 0 to 60 minutes. Typically, a delay of no
longer than 3 to 5 minutes is necessary. A delay time of 0 minutes effectively disables
this function.
5. NUMBER OF CYCLES: Select from 0 to 10 the number of complete charge-to-
discharge cycles the battery should be subjected to in succession. Note: All batteries
have a “lifecycle” rating, indicating how many cycles a battery can usefully withstand
over the course of its life. Periodic cycling of batteries can be beneficial to help keep
them in useful condition. Excessive cycling, however, can unnecessarily reduce the
useful lifespan of the battery.
6. DELAY BETWEEN CHARGE/DISCHARGE: A battery can often become warm
after a charge or discharge period. Triton can insert a user-selected time delay to
occur after each charge and discharge period to allow the battery adequate time to
cool before being subjected to the next step. Set the charge/discharge delay time,
which ranges from 1 to 60 minutes. “DLY” will be displayed any time Triton is in this
delay mode.
7. PEAK SENSITIVITY / THRESHOLD: As NiCd and NiMH batteries are being
charged their voltage will increase. After their maximum or “peak” charge capacity
has been reached the battery’s voltage will begin to decrease. The point at which
Triton will terminate fast charge after peak is called the “peak sensitivity” –
sometimes referred to as “threshold.” This point can be adjusted by the user, and is
set in milli-volts per cell in the pack. Using the dial, set the peak sensitivity level. A
lower mV sensitivity value can result in more precise peak detections, and higher mV
sensitivity value can result in less precise detections. For NiCd batteries, the peak
sensitivity ranges from 5mV to 20mV per cell – an initial setting of 10mV is
recommended. For NiMH batteries, the peak sensitivity ranges from 3mV to 15mV per
cell – an initial setting of 5mV is recommended. Adjust the sensitivity setting as
needed to achieve the maximum capacity for the battery.
The following features apply only to NiMH batteries:
8. NiMH MAXIMUM. CHARGE INPUT: This feature sets the maximum charge
capacity that will be delivered to the battery during charge. NiMHs deteriorate when
subjected to excessive heat which can occur if overcharged. If peak charge is not
detected by the charger nor has the safety timer expired, this feature will
automatically cease fast charge at the user-selected charge input capacity selection.
This is also useful when preparing a NiMH battery for long-term storage, as many cell
manufacturers recommend to place a partial charge charge on the battery
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