a. Battery Level Indicator
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Shows the remaining battery percentage. If your battery drops below 0%, the battery segment on the screen will begin
to blink. When this happens, please immediately recharge your EF DELTA.
b. Battery Failure Warning
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If the ring on EF DELTA’s display is flashing, please contact our Product Experts at [email protected].
c. Remaining Charge Time
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Minute-level accuracy of the amount of charge time left in EF DELTA based on the current output level.
d. Low temperature indicator
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Indicates that the battery temperature of EF DELTA is too low. All inputs and outputs will stop functioning at this
state.Please bring the EF DELTA to a warmer location and wait for the temperature to return to within the working range before restarting the EF DELTA.
e. High Temperature Indicator
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Indicates that EF DELTA’s battery temperature is too high. All input and output functions will stop and the fan will
start. Once the battery cools, EF DELTA will automatically resume operating.
f. Fan indicator
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The fan speed of the EF DELTA directly correlates to the load and ambient temperature. The higher the load or ambient
temperature, the higher the fan speed.
g. Port Usage Indicators
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Indicates when each port is in use.In addition, press and hold the AC ON/OFF button for 15s to switch between 50/60Hz.
h. Current Output
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Shows EF DELTA’s current power output level in watts.
i. Current Intput
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Shows EF DELTA’s current power input level in watts.
j. Overload Warning
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There are 2 levels of Overload Protection. First, Software Level: when the power pulled from the AC outlets steadily exceeds
the maximum AC power output,the overload indicator and AC indicator will flash simultaneously for 15 seconds and the AC output will automatically
and immediately turn off. Other ports will continue to work. Second, Battery Level: when the power pulled from the AC outlets immediately exceeds
the maximum AC power output, the overload indicator and AC indicator will flash simultaneously for 15 seconds and EF DELTA will automatically
and immediately turn off. Overload warning - There are two types of overload protection. First level of protection:When any of the DC socket
exceeds the maximum current limit or the output of any AC socket exceeds the maximum AC power output value (overload of 1-10% for 10min;
overload of 11-20% for 1min; overload of 21-50% for 10s; overload of 51-100% for 100ms), and the car power output exceeds the maximum current, the
overload indicator and the indicator of the corresponding socket will flash at the same time for 15s. Power supply to the socket will be cut off, while
other sockets will continue to work. Second level of protection: When the power output from any DC or AC socket and the car power outlet exceeds
the maximum power output of the battery, the overload indicator and the indicator of the corresponding socket will flash at the same time for 15s.
The EF DELTA will shut down automatically. Remove the device causing the overload and restart the EF DELTA to resume operation.
2. USB-A Output Ports
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Charge a wide array of devices such as your iPhone, tablet, GoPro, speakers, or anything else that charges through USB-A
Port. The USB-A Output Indicator Light will automatically light up when a USB-A port is in use.
3. Fast Charge USB-A Output Ports
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Charge devices at 2x the speed using these ports. The USB-A Output Indicator Light will automatically light
up when a USB-A ports is in use. If your device does not support fast charge, the device will charge at its normal speed.
4. USB-C Output Port
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Charge MacBook Pro, supported Android mobile phones and other devices using the USB-C port.When the USB-C port is
in use, the USB-C output indicator will light up.
5. Power Button & LCD Display Screen ON/OFF Power Indicator Light
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Press and hold the power button to switch the EF DELTA on or off. When EF
DELTA is turned on the LCD Display Screen will light up. To turn on/off LCD Display Screen and keep EF DELTA operating, press the Power Button. The
Power Indicator Light will automatically light up when EF DELTA senses any of the output ports are in use. n addition, the Power Indicator Light will blink
when none of EF DELTA’s output ports are in use, meaning EF DELTA is in Idle State. After 5 minute in Idle State, EF DELTA’s screen will go to sleep,
however the battery will remain active. After an extended period of time in Idle State, EF DELTA will automatically turn off to protect its battery’s health.
6. AC Power Button (PRESS & HOLD for ON/OFF)
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The AC Power Button regulates the flow of AC out of EF DELTA. Since AC is less efficient
than DC, we’ve designed EF DELTA to turn AC on only when a user needs it. To enable AC power, please PRESS & HOLD the AC Power Button.
Please be sure to unplug the cord from the AC port and press the AC power button to turn AC off when you are not using it to charge your devices.
The AC Indicator Light will come on when EF DELTA’s AC power is enabled. The AC Indicator Light will turn off after 12 hours of non-use. In addition,
for us in selected countries, press and hold AC ON/OFF for 15s to switch between 50/60Hz.
7. 6 AC Output Sockets (100-120V) / 4 AC Output Sockets(International Version 220-240V)
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Charge devices that require a 100-120V AC
(230V for 220-240V edition) wall charger such as laptops, electric guitars, TVs, mini refrigerators, vacuums etc.
8. Car Power Output Port & Car Power Output Indicator
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Charge devices such as drone batteries, that require a car port. The Car Output Indicator
Light will automatically light up when the car port is in use.
9. Ventilation Vents
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The vents prevent EF DELTA from overheating.
10.
DC Power Button (PRESS & HOLD to switch ON/OFF) & DC Output Indicator
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Press and hold the power button to turn the DC output of the
EF DELTA ON/OFF. The DC ON/OFF button controls the EF DELTA’s DC output. Since some low-power devices may not be recognized, the USB
port can be set to always open if needed.
11. Solar Charge/Car Charge Input Port
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Supports a maximum of 3 pieces of 110W solar panels connected in series. There is no limit for parallel
connection, but the device itself will limit input to 400W. Supports car charge with a maximum input of 10A.
12. X-STREAM AC Charge Input Port
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Connect a universal AC cable (designed for effective current of 15A) to the port and the other end of the
cable to a device the US and Japan versions only support charging at 100-120Vac (50/60Hz). EF DELTA's X-STREAM system has an entry-level UPS
function, which means you can use the EF DELTA AC socket while the device is connected to a wall socket with AC power supply (the AC power
comes from the grid, not the battery). When the grid loses power suddenly, the device can automatically switched to EF DELTA battery power mode
in <50ms to ensure that your work is uninterrupted. (This a non-professional grade UPS function that does not support 0ms switching. Do not
connect devices with high uninterrupted power supply requirements, or perform multiple tests to confirm compatibility before connecting such
devices, such as data servers and workstations.)
13. Overload Protection Switch
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When the input current continuously exceeds 20A during a charge, the AC charging port will trigger overload
protection (the button will pop out). When the device is confirmed to be normal, press the button to continue charging.
1. LCD Display
i
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