Great Planes Triton Jr. Charger - GPMM3152 - Manual (Page 18)

1. At the “Pb CHARGE” screen, press the down arrow once to find
the “Pb DISCHARGE” screen.
2. Two values can be adjusted on this discharge screen. Press
ENTER to cause the discharge current value to flash. Press
INC+ or DEC- to change this value (0.10 – 1.0 amps).
3. Press ENTER to cause the voltage value to flash. This is the
battery’s minimum discharge cutoff voltage, based on 1.8V per
cell. Since most hobby batteries have a nominal voltage of 12V
(6 cells), the proper discharge cutoff voltage would be (1.8V x
6) 10.8V. Press INC+ or DEC- to adjust this value if necessary.
Press ENTER, or wait 5 seconds and Triton Jr. will automatically
confirm both settings.
4. To START DISCHARGE, press and hold START for 2 seconds.
“BATTERY CHECK, PLEASE WAIT..” will show briefly, and
Triton jr. will start discharging if the battery is in suitable
condition.
5. When discharge is finished, the screen will show “END” and tones will
sound for 10 seconds. The battery can now be re-charged, or
disconnected from Triton Jr. Other data measured during discharge
can be viewed in the DATA VIEW screens shown on page 20.
DISCHARGING Pb BATTERIES
18
NOTES FOR DISCHARGING Pb BATTERIES
• For more accurate discharge readings, it’s better to use a current
which can discharge the pack in 1 or 2 hours.
• The maximum discharge current is 1 amp. Maximum power
dissipation during discharge is 5 watts, which might cause discharge
currents to automatically be limited for packs having high voltage.
• The proper discharge cutoff voltage for batteries with a nominal rated
voltage of 2V is 1.8V, 4V batteries should be discharged to 3.6V, 6V
batteries should be discharged to 5.4V, 8V batteries should be
discharged to 7.2V, and 10V batteries should be discharged to 9V.