User manual NOVAK DIGI-PEAK

[. . . ] · Do not charge battery packs with less than 4 or more than 8 cells connected in series. · The heat sink on the back of the charger can get extremely hot during charging. Do not obstruct or cover the heat sink or cooling fan (if equipped), as this will cause it to overheat and shut down. When charging 4-cell packs, the DIGI-PEAK's heat sink will get very hot. [. . . ] When the battery voltage peaks and begins to drop, the charger will shut off and the LED will go out (or flash, if trickle rate is set above zero in the LINEAR mode). At this time, the batteries will be warm to the touch, and are fully charged and ready to run. TO STOP CHARGING Disconnect the battery pack from the output alligator clips. Remember that the 100 second lock-out time is reset to zero whenever the charger is started. BATTERY TIPS GETTING THE MOST OUT OF YOUR BATTERIES Getting the most run time and the longest life from your batteries requires more than just charging at the correct current. REPEAK FOR MAXIMUM CAPACITY When the battery pack voltage peaks at the end of the charge and begins to drop, one or more cells are fully charged and start to 'self discharge'. The excess energy that is put into the cell after it has peaked results in the dissipation of heat. You may notice when the battery pack peaks, some of the cells get warmer than others. A good way to reduce the problem of some cells having a more complete charge then others, is to repeak the battery pack after about 30 minutes. This allows the cells that have over-charged to discharge down to the level of the remaining cells in the pack. Repeaking after the cells have equalized with each other brings all the cells in the pack up together for maximum capacity. It is best to time this process so that you are able to run immediately after repeaking, this will minimize the 'self-discharging' of the batteries. DISCHARGE FOR EXTENDED RUN TIME AND LONG LIFE TROUBLE-SHOOTING GUIDE This section describes typical charger problems, causes, and solutions. If you are unable to solve the problem, call our Customer Service Department for assistance. Charger Stops Before Battery Pack Is Fully Charged · Input power supply is unstable. Connect the charger input to a 12 volt DC automobile battery to check. If voltage starts to drop before the charger shuts off, charger is operating normally. If charge current is too high for the battery pack, it will heat up prematurely and cause the voltage to drop, shutting off the charger. Some battery packs will not accept PULSE charging at higher charge rates and will peak before the battery is fully charged. · The charging current was lowered while charging after the lockout time expired. (See Below) Charger Stops And Will Not Restart Thermal Shut-Down has occurred­Try Novak Cooling Fan Kit #5635 PACK VOLTAGE If you are using the DIGI-PEAK PLUS version charger, turn on the LCD display and select VOLTS on the meter slide switch to monitor the battery pack voltage. During the charge cycle, the LCD meter will display the voltage of the battery pack. If the charger is not connected to a power source and is connected to a battery pack, the LCD will display the battery pack voltage. If you are in the LINEAR mode with the charger connected to an input power source and no battery pack connected, the LCD will display the approximate input voltage. [. . . ] Make sure the plug on the cooling fan wiring will reach the receptacle sockets on the lower left of the charger back plate. Insert screw into upper left and lower right holes on cooling fan and through the openings of the heat sink into the pre-drilled holes in back plate. Screw into back plate with a screwdriver until screw heads just touch the fan housing. Insert plug from the cooling fan into the receptacle sockets on lower left of the back plate. [. . . ]