Hummer H24 User Manual page 9

TURNING OFF THE Hummer:
The Hummer has a built-in energy saving feature that will automatically turn the unit off
after the connected USB device has been fully charged or no load to the charger.
FAQ:
Q1: What are the features of the Hummer ?
A1: Apart from jump starter function, the Hummer can be used to charge portable
electronic devices, such as mobile smart phones, tablets, portable gaming system, digital
cameras, camcorders, portable GPS devices, and any other DC 5V powered electronic
devices.
It can also jump start a drained car battery with the supplied
jump start cables. There's also an included ultra-bright LED
light that can be used as a torch light.
Q2: Can this device jump start a 12V and 24V vehicle?
A2: Yes. If you want to jump start a 12V vehicle, please make sure to select the (12V
mode) by sliding the(12V/24V Switch)to the left. Once the (12V indicator) light is on, it's
ready to jump start. If not, press and hold the (BOOST Button) for 3
seconds until the light is on before jump start. If you want to jump start a 24V vehicle,
please make sure to select the (24V mode) by sliding the(12V/24V Switch)to the right,
press down the (BOOST Button) for 2-3 seconds until the light is on, it's ready to jump
start.
Q3: When the vehicle is out of battery or disconnected with
battery, can this device jump start the vehicle?
A3: Yes. First, carefully select the right voltage mode for your vehicles and set the
(12V/24V Switch) to the left - 12V mode for 12V vehicle or to the right - 24V mode for 24V
vehicle. After setting, connect the positive and the negative terminal correctly, then
press the (BOOST Button), it's ready to jump start the car.
Q4: How does the Sparkless Smart Cable work?
A4: If the (12V Indicator) light is on, means ready to jump start a 12V vehicle; If the
(24V Indicator) light is on, means ready to jump start a 24V vehicle. If both (12V Indicator)
& (24V Indicator) lights are flashing rapidly, means incorrect connection of the jumper
cable clamps and battery terminals, please double check and reconnect; If no indicator
lights is on, means the jump starter with low battery, need to recharge.