PowerTech MB3776 User manual

Instruction Manual
500Wh Portable
Power Station
MB3776

1
The MB3776 portable power stations are the result of years of power supply
manufacturing experience combined with extensive user feedback. With its
compact design, huge capacity, light weight, high power, and ease of portability, the
new design uses an eective lithium battery as the main body of energy storage.
It oers you an easy mobile power solution and is widely used in outdoor settings,
medical and fire rescue operations, outdoor recreation, emergency conditions,
environmental monitoring, and other applications.
INTRODUCTION:
FEATURES:
• Intelligent automatic dynamic charge and discharge management platform
• The colour LCD display would show the battery capacity, voltage, output
power, and remaining time for charging and discharging.
• Lightweight and compact design
• Pure sine wave, high precision, low ripple, and SPWM (pulse width
modulation) voltage output
• Isolated pure sine wave AC 240V output
• Built-in rechargeable power with high capacity, long life, and eciency
lithium-ion battery
• QC3.0, 5V/2A, wireless charging and Type-C output, can be used for
charging digital products such as mobile phones;
• AC (AC240V) and DC (DC12V/10A, USB5V/2A, Type-C, can supply power at
the same time
• Safety design seven protections: short-circuit protection, over-load
protection, over-temperature protection, over-charge protection,
overdischarge.
Please note: The power station features built-in protection which
prevents the unit from being charged while running the inverter. Only the
DC outputs will function to prevent damage to the unit.

2
PRODUCT SPECIFICATIONS:
WORKING ENVIRONMENT:
Model No. MB3776
Battery Type Lithium-ion Battery
Output Power 500W
Peak Power 1000W
Output wave Pure sine wave
Frequency 50Hz±0.5Hz
5.5-2.5mm DC Sockets 12V/4A, 48W Max
Cigarette Lighter Socket 12V/10A, 120W Max
Protection Short-circuit protection, over-load pro-
tection, over-temperature protection,
over-voltage protection, over-current
protection, under-voltage protection,
etc. (with self-recovery function after
protection)
AC Charging adapter 19V/4A
Solar Input 11-24V, 100W Max
Battery capacity 14.8V (33.8AH)
Charging time 6-8H
Lifetime > 800 times
Dimension L*W*H 225*150*170mm
Weight 5kg
Working Temperature: -20 °C ~ 65 °C
Operating humidity: 0%RH~90%RH
Working air pressure: 50KPa ~ 100KPa

3
LOAD REFERENCE TIME:
PRODUCT LAYOUT:
Device Type Power Time of Use (14.8V/33.8AH)
Smartphone 2880mAH 150 times
LED light 40W 12 hours
Electric fan 75W 6.5 hours
laptop 40W 12 hours
Computer 170W 3 hours
Rice cooker 2L 300W 1.6 hours
Rice cooker 3L 500W 1 hour
Particle collector 90W 5.5 hours
Note: The above load test usage time is for reference only, and the actual use
time will vary depending on the brand of the load product.
1. Power Button: Turn on the power
button, the LCD display is on, and
each output can be operated
2. 5.5-2.5 DC 12V output : DC
12V/8A± 0.5Max, 12V/4A*2 power
output
3. USB output: Type-C, QC3.0,
5V/2A*2, wireless charging power
output
4. AC output: AC power output
5. LED switch : Turn on the LED
6. LED light
7. LCD Display: Showing the input
power, voltage, output AC power,
battery capacity in real time.
8. Cigar output: DC 12V/10A± 0.5
power output
9. USB and Type-c output: Type-C,
QC3.0, UBS 5V/2A power output
10. AC output :AC 220V power output
11. 5.5-2.1 DC charge input: Charge
the power

4
CONTENTS:
USAGE INSTRUCTIONS:
1 x Portable Power Station
1 x AC adaptor
1 x Car charging cable
1 x LED lamp
1 x User Manual
Procedure
1. Ensure that the load power is within the rated power of this power station. If
not, please choose a higher power station.
2. To begin, press the power button and then the switch. When the indicator is
on, the output is turned on, and the device can be charged.
3. After use, please turn o the power button and charge the power station intime.
4. Charging method: Insert the charger into the DC audio input port, the AC
output and DC 12V output will be automatically turned o, but USB charging
can be used. After charging to 100%, please continue charging. The charging
function will automatically stop when charging is complete.
Operation Precautions
When using the power station, please strictly follow the operation steps:
1. Place in a cool, dry location away from liquids, gases, and oils, with at least 5
cm of space around it to dissipate heat.
2. Equipped with a fully automatic charger, AC output and DC 12V output will be
automatically turned o during charging, only the LED lights, USB and wireless
charging functions can be used. After charging for 6 to 8 hours, please unplug
the charger before use. If it is not in use, please turn it o to save power and
recharged it every three months.
3. When no function is used, it will automatically shut down after two minutes.
You need to press the power button again to reactivate it.
4. When using USB charging, if the power exceeds 5 watts, the cooling fan will
work every 12 minutes; When USB charging current is less than 5 watts and AC
power is less than 10 watts, the LCD display will not display the output power.
5. When the temperature inside the power station exceeds 50 degrees Celsius
and the load power exceeds 20% of the rated power, the cooling fan kicks in.
6. In general, an AC load device with less than its rated power can be used nor-
mally, but the startup power of some devices often exceeds its rated power. For
example, the startup power of an inductive load device is generally 6–8 times
its rated power, and the startup power of LED lamps is about dozens of times its
rated power. If the startup power exceeds the peak power of the power station,
over-load protection will be triggered, and the power station will automatically
shut down.
Please note: Overload, overheating, or low batteries will automatically
activate the protection function and shut down the power station.

5
APPLICATION SCENARIOS:
Portable power stations are widely used in medical rescue, emergency communi-
cation, environmental monitoring, fire rescue, military camping training, outdoor
oces, power outages, no electricity areas, telecom network installation, military
information construction, geographic working, oil exploration by miners, archi-
tectural design surveys, water conservation and water aairs testing, outdoor
photography, field research, etc.
Outdoor
Workplace
Camping
Vehicle
Emergency
Photography
Environmental
Monitoring
Medical Rescue
Power Outage
Emergency
Communications
THREE CHARGING METHODS:
Car Charging AC ChargingSolar Charging
Note: Due to long-term transportation and storage, the battery may be
in sleep mode. Please fully charge the product before using it for the first
time to avoid inconvenience caused by insucient power.

6
IMPORTANT SAFETY INFORMATION
1. Please read all the instructions carefully before using the product
2. Do not use the product near a heat source, such as a fire source or a heating
furnace.
3. Avoid contact with liquids of any kind. Do not use the product in the rain or
in high humidity.
4. Do not put fingers or hands into the product.
5. Do not operate the product with a damaged cord or plug, or a damaged
output cable.
6. Do not use the product around strong static electricity or magnetic fields.
7. Do not disassemble the product in any way or puncture it with sharp objects.
8. Do not use unocial components or accessories to avoid the risk of fire,
electric shock or injury to persons.
9. Do not stack any heavy objects on the product.
10. To reduce the risk of injury, close supervision is necessary when the product
is used near children.
11. This product is not recommended for powering medical emergency equipment
related to personal safety, including but not limited to medical grade ventilators
(hospital version CPAP: Continuous Positive Airway Pressure), artificial lungs
(ECMO, Extracorporeal Membrane) Please follow your doctor’s instructions and
consult with the manufacturer for restrictions on the use of the equipment.
If used for general medical equipment, please be sure to monitor the power
status to ensure that the power does not run out.
TROUBLESHOOTING
Problem Reason Solution
DC no power output Overload Unplug the load and restart
the DC output
USB no power output USB is protected Turn o the USB output and
wait for a while, then
restart the USB output
AC no power output The internal battery
is overheating and
becoming overloaded.
Restart the AC output at the
ideal operating temperature
Charge failure The internal battery
is overheating, and
the charging startup
power is excessive.
Try unplugging and plugging
in the charger several times
Power failure The internal battery
is overheating, the
battery is low.
Restart after the temperature
has cooled, or plug in the
charger to activate charging.

Distributed by:
Electus Distribution Pty Ltd
46 Eastern Creek Dr,
Eastern Creek NSW 2766 Australia
Ph 1300 738 555
Int’l [phone]
Fax [phone]
www.electusdistribution.com.au