External Charger Instructions

    Model HP8204
    Output Current 3A~6A continuous
    Output Voltage 24V
    Max Output Voltage 31V
    Input Voltage 115V/230V option switch
    115V (95V~132V) / 230V (180V~264V)
    Protection Against Over-Voltage About 32.5V automatic shut-off
    Protection Against overload About 8A automatic shut-off
    Protection Against short circuit Output fuse severs or shut-off automatically
    Environmental Temperature of Use -10°C~50°C
    Operating Temperature 0°C~40°C
    Approvals UL. CSA. CE. TUV. T-MARK.
    Fuse 125V 10Amp (C in Figure 1)

    Operating Instructions


    • Adjust the voltage switch (115V or 230V) to the correct settings (A - see Figure 1).
    • Connect the charger to the Power Pack - position the adapter, arrows up and toward you, at the bottom of the Power Pack, just below the metal contacts of the Power Pack. The adapter will fit almost exactly with the Power Pack and will be centred below the contacts, using the ridges located on the Power Pack as a guide for the proper position. Gently slide the adapter upward in the direction of the arrows, until it is fully aligned with the Power Pack contacts and stops, unable to slide upward any more.
    • Plug the power cord into the power receptacle.
    • Turn on the power switch (B - see Figure 1): the fan will begin to run and the charging LED will turn yellow.
    • When finished charging, a green light will indicate that the Power Pack is fully charged. Between uses it is suggested that the charger is left connected, even after the charge process is completed. This will not damage the Power Pack or the charger.
    • To remove the Power Pack, switch off the charger before disconnecting from the Power Pack - gently slide the adapter downwards until the adapter and Power Pack contacts are no longer aligned.


    Light Indications (D in Figure 1)
    Red Power On
    Yellow Charging
    Green Fully Charged

    During the charging process the charging LED may blink alternately between the yellow and the green around every seconds, please note that this is a normal feature.

    Safety & Important Information


    • Charge only GEL and Sealed Lead Acid (SLA) rechargeable type batteries with this unit.
    • Only use the specified rated fuses.
    • The charger will become warm during charging.
    • Charge in well ventilated areas and do not cover or place item on the Charging Unit.
    • Use indoors only and in dry areas.
    • Use at temperatures above 32°F (0°C) and below 120°F (50°C).
    • In the winter, fully charge and store the Power Pack in an area at room temperature. Recharge the Power Pack once more in the middle of winter. DO NOT charge constantly during the off season/winter time. Once every three months is recommended.
    • Keep the surrounding area clear while charging and position the cords to prevent damage to them and to prevent trip hazards.
    • Use only with the original intended battery.
    • Never use a charger with a damaged cord.
    • Misuse of a charger could result in fire or damage of batteries.
    • Although this advanced charger has auto-cut off, it is not recommended to leave it switched on for prolonged periods of time.
    • The batteries should be charged after every operation to ensure their longevity.


    A) Switching on the charger power but no LED light up


    • Confirm that the charger cord is plugged into the mains supply.
    • Ensure that the mains supply is turned on.
    • Test that the main socket is working by plugging in another appliance.
    • Check the fuse (C – Figure 1).
    • Check for short circuit in the wire from the adapter to the Power Pack.


    B) Switching on the charger power, red LED is up, green LED flashes but there is no charging


    • Check if the fuse has severed.
    • Check the connection between the adaptor and the Power Pack.
    • Battery polarity is wrong.
    • Check the connection to the battery and the battery wires (inside the case).


    C) The charging time continues for a long duration


    • The battery is damaged.
    • The battery is coming to the end of its natural life.