Instruction manual
Noncompliance with the safety instructions may cause injuries due to re, electric shock, etc.
Thank you for purchasing this portable power supply from Polaroid. To safely use this power supply, please read
this manual carefully and keep it in a safe place so that you can read it whenever necessary. If you pass the power
supply on to another user, make sure that you hand over the instruction manual as well. Please keep any additional
documents together with this manual, if available.
LE5B –
Portable Power Supply
Contents
1. Packing list 4
2. Introduction 5
3. Safety instructions 6
4. Part designation / functional description 10
5. Lifting & transport 11
6. Charging 12
6.1 Charging via mains supply 12
6.2 LCD battery indicator 13
6.3 Charging via solar panel 13
6.4 Charging via car charging cable 14
7. Connecting and operating devices 15
7.1 General use 15
7.2 AC output 230 V~ 16
7.3 DC output USB, car accessory socket & LED 17
7.4 Car jump start assist for emergencies 18
8. Estimated running time 19
8.1 Charging while supplying power at same time 19
9. Storage 20
10. Service life of lithium ion batteries 21
11. Disposal and recycling 22
11.1 Lithium ion battery 22
11.2 Electric device 22
11.3 Package 22
12. Description of problem 23
12.1 Frequently asked questions 24
13. Equipment specications 25
14. Warranty & customer service 26
Instruction manual
LE5B – Portable Power Supply
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1. Packing list
No. Item Quantity
1 Portable Power Supply 1
2 Mains charger 1
3 Car charging cable 1
4 Solar panel charging cable 1
5 Clips for car jump start assist 1
6 Instruction manual 1
1
2
3
4
56
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2. Introduction
Note the following comments when reading the instruction manual:
•The contents of the instruction manual and the information contained here may change without prior
notice.
•The design and technical specications of the power supply may change, regardless of whether the reason
for the change is announced or not.
•This manual was prepared with care and to the best of our knowledge. Please contact us, should you have
any questions relating to the product.
•This manual may not be copied or duplicated, except for personal use.
Disclaimer
•Our company cannot be held liable for damages caused by re, earthquake, use by a third party, other
accidents, intentional misconduct on part of the customer, abuse or other abnormal conditions.
•Do not repair any damage to the plug connector (power cord or car starter cable) on your own.
•The warranty covers all terms and conditions of the warranty. Contents that are not specied in the
warranty terms and conditions are beyond our responsibility.
•Our company assumes no liability for damages caused by incorrect use or non-compliance with instruction
manual.
•This instruction manual can be found and downloaded as a PDF le at our website:
www.gbt-international.com.
•Intended use: The Polaroid LE5B energy storage unit is intended as a power supply for privately used
electronic devices with a maximum power consumption of 300W. Our product is not suited for equipment
that relate to one‘s own personal safety and relies heavily on electricity, such as medical devices, equip-
ment for nuclear facilities, the manufacture of air and spacecraft, etc. We therefore assume no liability for
accidents involving personal safety, res or machine failures, which were caused by using our product with
the aforementioned devices.
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3. Safety instructions
Please observe the instructions to ensure a safe use.
Explanation of symbols
This symbol together with the signal word
DANGER means
Noncompliance may very likely lead to
serious injury or death.
This symbol together with the signal word
WARNING means
Noncompliance may lead to
serious injury or death.
This symbol together with the signal word
CAUTION means
Noncompliance may lead to
injuries and/or property damage.
This symbol together with the signal word
ATTENTION means
Noncompliance may lead to
damage to the unit.
•Serious injuries: include blindness, injuries, burns, electric shock, fractures, poisoning, etc., which can
lead to complications, hospitalization or permanent treatment.
•Injuries: include injuries, burns, electric shock, etc., which do not lead to hospitalization or permanent
treatment.
•Property damage: includes buildings, belongings and pets, etc.
A warning label has been attached to the LE5B unit to ensure its safe use. Use the unit only in accordance with
the manual and the instructions provided on the label.
Make sure that the label is always clean and legible and do not remove it.
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Danger
Do NOT disassemble, repair or modify the unit or the battery.
That may otherwise result in electric shock, re, etc.
Do NOT place the unit close to or in a re or expose it to heat. Keep out of direct sunlight.
That may otherwise result in a re or injuries.
Do NOT charge, use or store the unit in a bathroom or in an area exposed to rain or moisture.
Doing so may result in electric shock, re, etc.
Use the output receptacle ONLY for connecting separate electric devices and do NOT connect to the
mains under any circumstances.
Connecting to the mains may lead to electric shock, injuries or re.
Do NOT touch the unit or the plug-in points if your hands are wet.
Doing so may otherwise result in electric shock.
Do NOT connect any metallic objects at the AC input or output.
Doing so may otherwise result in electric shock, re, etc.
Do NOT rub your eyes if uid from inside the unit should get in your eyes.
If this should occur, ush eyes with water and seek medical attention immediately. This can lead to blindness.
Do NOT dispose of the unit together with household waste.
Doing so may result in electric shock, re, etc. at the landll or in the garbage can.
Do NOT connect the power cord twice. Do NOT connect the power cord to the AC output.
If the power cord is already connected to the mains, connecting the cord to the AC output receptacle may
cause an electric shock, re, etc.
Do NOT connect any metallic conductors, such as supply lines, directly to the output receptacle.
(Output socket is connected to the unit‘s power connector). Doing so may result in electric shock, re, etc.
Do NOT use any inappropriate power cords.
Doing so may result in electric shock, re, etc.
Do NOT operate the unit above the specied input voltage.
Doing so may result in electric shock, re, etc.
Do NOT damage the unit and/or the battery, e.g. by dropping or exposure to impact.
Doing so may result in electric shock, re, damage to the unit, etc.
Do NOT store or use the unit if (e.g. high racks) there is a possibility that it may fall.
Doing so may result in electric shock, re, damage to the unit, etc.
Do NOT use the unit if it is not responding.
Doing so may result in electric shock, re, damage to the unit, etc.
Do NOT move the unit if it is recharging or in use.
Doing so may result in electric shock, damage to the unit or other injuries.
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Warning
Use and store the unit only in a clean and dry environment.
Failure to do so may result in a short circuit, smoke or re if metal dust or small metallic parts come in contact
with the connections.
Check the unit prior to every use.
If you notice that the unit has any damage or cracks, is broken, or has other abnormalities, do NOT continue to
use the unit and contact your dealer or our customer service center.
Check whether the power cord is damaged.
If you notice that the power cord „has any damage or cracks, is broken, or has other abnormalities, do NOT
continue to use it.
Do NOT let children use the power supply unit.
Doing so may result in an accident or injuries. This unit must not be used by children. The unit and its connec-
tion cables must be kept out of reach of children. Children must not play with the unit.
This unit may only be used by persons with reduced physical, sensory or mental capabilities or lack of experien-
ce and knowledge if they are monitored or have been instructed in how to safely use the unit and understand
the resulting risks.
Do NOT use the power cord if the connector is loose or deformed.
Doing so may result in electric shock, overheating, re, etc.
Do NOT use in wet or dusty environments.
Doing so may result in smoke or a re.
Do NOT use or store the unit in or at the following locations, e.g. trunks, sales counters or environ-
ments with high temperatures.
Doing so may cause the unit to deform or overheat.
Should uid from inside of the unit come in contact with your skin or clothing, wash the spots with
tap water.
Contact with the uid may result in injuries.
In a storm, unplug the power cord from the socket.
A storm may result in an overcurrent coming from the socket, resulting in overheating, re or other accidents.
Do NOT charge the unit via power supply systems that operate outside of 100-240V.
That may otherwise result in overheating, re, etc.
Do NOT place the unit on its side or upside down while in use or storage.
Doing so may result in leakage or cause the unit to overheat leading to other accidents.
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Caution
If rust, peculiar odors, overheating or other abnormal circumstances are observed, stop using the unit immedi-
ately and contact the dealer or our customer service center.
Make sure that the label is always clean and legible and do not remove it.
The unit complies with all legal requirements for transport of dangerous goods.
The capacity of the lithium polymer battery in the unit exceeds 100 Wh.
Based on UN standards: If this unit is to be sent by airplane or ship, it must be transported in accordance with
IATA standard packaging. IATA instructions and and labelling requirements and the relevant declarations must
be completed.
Make sure that the unit is properly secured when transporting in a motor vehicle.
Failure to do so may result in damage to the unit, electric shock, overheating, re and other accidents.
The unit must be connected to a grounding cable when charging the battery.
Charging should be performed via the supplied AC power cord, which is plugged into a grounded wall socket.
Do NOT allow the unit or grounding cable to become wet by water or other uids.
Doing so may result in short circuiting, overheating, re, etc.
Only charge, use and store the unit within an ambient temperature of 0 to 40 °C.
Operating the unit above or below this temperature range may result in overheating or reduced performance.
Switch the unit off immediately if it has accidentally fallen, was dropped or was exposed to vibrations.
To prevent accidents, please contact the dealer or our customer service center to have the unit checked and
repaired.
Carefully read the instructions for the electric devices that you intend to connect to your power
supply unit.
Make sure that the device is switched off before you connect it.
A device starting up suddenly may lead to accidents or injuries.
If the protective function is activated and the output of the device is switched off, disconnect the electric de-
vices from the power output. Switch the unit off in case of non-use/storage in order to prevent electric shock
and the battery from discharging unnecessarily, etc.
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4. Part designation/ functional description
1. ON/OFF button for master power supply
2. ON/OFF button for direct current (DC)
3. ON/OFF button for alternating current (AC)
4. Operation indicator for ON/OFF
master power supply
5. Operation indicator for ON/OFF
direct current (DC)
6. Operation indicator for ON/OFF
alternating current (AC)
7. Battery capacity
8. Charging capacity
9. DC ON/OFF
10. DC output
11. AC ON/OFF
12. AC output
1. Carrying handle
2. Solar charging connection
3. Charging connection (car adapter)
4. Car jump start assist output
5. ON/OFF button
for main current
6. ON/OFF button
for direct current (DC)
7. ON/OFF button
for alternating current (AC)
8. Operation indicator ON/OFF
9. LC display
10. USB ports
11. Output for LED 12 V DC
12. 12/6 V DC output
13. Alternating current outputs
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5. Lifting & transport
1. Using the handle to carry the unit.
ATTENTION
Keep the unit away from
other objects when moving.
ATTENTION
Hold the carrying handle tight in your hand.
2. Placing the unit on a stable surface.
ATTENTION
Place the unit on a stable surface.
By doing so, it is easier to read the gauges and indicators.
3. Placing the unit on an uneven surface.
DANGER
The unit may not be subjected to any impacts or vibrations.
Otherwise there is a risk of re.
Keep the unit‘s original packaging and use it when you need to transport the unit.
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6. Charging
6.1 Charging via mains supply
Charge your portable power supply unit, as soon as one
battery segment becomes visible.
Connect the power cord to the AC mains connection.
Using the provided mains charger, you can connect your
portable power supply unit (PSU) to any wall socket. You
know that the PSU is charged when the battery segments
of the battery display are blinking and the wattage under
INPUT on the LC display changes.
The PSU is fully charged when all battery segments stop
blinking. The PSU should be fully charged within 6 to 8
hours when plugged into a wall socket. The PSU stops char-
ging the battery once the battery is fully charged.
The mains charger comes in two parts. Connect the two
parts by plugging the cord into the adapter.
Charging via the socket to supply power to a laptop or other devices
NOTE
Make sure that the power cord‘s plug is
inserted into the AC mains connection.
Make certain that the mains plug is
only connected to a properly installed
grounded wall socket with
100-240V~, 50-60Hz AC.
The capacity indicator blinks and the
charging indicator lights up.
ATTENTION
Only charge the unit when the ambient
temperature is between 0 and 40 °C.
NOTE
The charging time varies depending
on the ambient temperature or the
internal state of the charger.
End the charging process by switching
off the unit and pulling the plug
out of the socket.
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6.2 LCD battery indicator
The LCD battery indicator shows the charge state. The battery indicator has 5 segments, with each segment
designating approx. 20 % - 40 % - 60 % - 80 % - 100 % of the overall capacity. During use, the segments
of the indicator will disappear, thus showing the remaining available capacity. Note that while charging your
PSU, a battery segment blinks once per second. This shows the current charge state. The wattage shown under
INPUT indicates the actual charging current in real time. As soon as the battery is fully charged, all segments of
the battery will be illuminated and shown continuously.
6.3 Charging via solar panel
1. Switch on the PSU by pressing the ON/OFF button for the main current for two seconds.
2. Position your solar panel wherever it will receive the most direct sunlight.
3. Connect the solar panel with the solar panel charging cable and then plug in the Anderson connector at
the INPUT socket on the left side of the PSU. The PSU is charging when the wattage shown under INPUT
on the LCD changes and the segments of the LCD battery indicator are blinking. The PSU is fully charged
when all battery segments stop blinking and are shown continuously.
4. You can connect the PSU to different brands of solar panel using the Anderson Powerpole connector.
5. You can also hook up several solar panels in order to decrease the charging time. Your PSU is able to
handle 120 W of solar energy. However, the voltage of the solar panel should be between 14 V and 40 V,
e.g. 18 V, 36 V, etc.
6. NEVER charge the PSU using solar panels and the mains charger at the same time.
7. The PSU stops charging the battery as soon as it is completely charged. This is recognized and controlled
by the integrated recognition system of the control module.
ATTENTION
Only charge the unit when the ambient temperature is between 0 and 40 °C.
NOTE
The charging time may vary depending on the ambient temperature
or internal factors involving the solar charger.
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6.4 Charging via car charging cable
When using the car charging cable, plug one end into the cigarette lighter of your car and the other end into
your PSU. You know that the PSU is charging when the battery segments of the battery display are blinking and
the wattage under INPUT on the LC display changes. A good time to charge your PSU is while driving.
NOTE
A car with a 12 V battery is not able to fully charge the PSU,
whereas a car with a 24 V battery is able to.
to supply power to a laptop or other devices.Charging via the cigarette lighter
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7. Connecting and operating devices
7.1 General use
Which devices can be operated by supplying power to them using your PSU?
• USB: Smartphones, MP3 players, digital cameras, e-readers, tablets, etc.
• 12 V DC, 6 mm connectors: Two connectors mainly for LED lamps.
• 12.6 V DC, car accessory socket: Personal refrigerator for cars, 12 V unit, etc.
• AC 230V~: Laptops, cameras, screens, household appliances, etc.
On use of the PSU
1. Press the ON/OFF button of the MASTER power supply for 2 seconds to switch on the PSU. The mains
current indicator and LCD light up.
2. Press the ON/OFF button for direct current below the ON/OFF button of the MASTER power supply for 2
seconds in order to supply power to a DC device. Press the ON/OFF button for alternating current below
the ON/OFF button of the MASTER power supply for 2 seconds in order to supply power to an AC device.
If you are not using a certain connector, make sure to switch it off to save power.
3. You can see whether other devices are supplied with electricity by looking at when the wattage for the
DC ON/OFF and AC ON/OFF changes on the LC display. The wattage levels indicate the amount of power
your devices requires from the PSU.
4. Press the ON/OFF button for AC, DC and the MASTER power supply for 2 seconds, in order to switch off
the AC output, DC output and the system.
5. If the ON/OFF button of the MASTER power supply is switched on while the DC button and AC button are
switched off, the system automatically shuts down within 10 minutes. You must press the ON/OFF button
of the MASTER power supply again for 2 seconds in order to restart it.
6. The system shuts down when the battery capacity is lower than 10 %.
7. Always remember to switch off the unit if it is not in use.
8. If possible, leave the PSU fully charged if you are not planning to use the unit for a long time.
9. Plug in your devices wherever life takes you.
Optimal use
While charging of the PSU, keep an eye on the battery LCD. If you connect devices, which have a high level of
consumption, e.g. refrigerator, the charge state of the PSU may fall very quickly and thus you may not exactly
have 390 Wh of energy. On the other hand, if you are charging/operating devices (a small TV), which requires
less current, you may receive almost 390Wh from the PSU. If you notice a shorter battery life, you need to check
the power requirement of the device. Please consult the TROUBLESHOOTING section in case of problems.
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Use during cold weather conditions
Cold temperatures (i.e. below freezing) may have an effect on the battery capacity of the PSU.
The current in the PSU may dissipate when ofine at sub-zero temperatures. Under no circumstances should
you charge your LE5B at sub-zero temperatures. That will damage the lithium ion batteries and it is possible
that the battery capacity cannot be restored.
Low temperature charge protection:
If there is charging current at sub-zero temperatures, the system will automatically stop the charging process.
The charging process is continued when the temperature is above 5 °C.
Low temperature discharge protection:
In case of temperatures below -20 °C the system will shut off the AC and DC output and the unit is automati-
cally switched off within 15 seconds. The system can supply power again when the temperature is above -15 °C.
7.2 AC output 230 V~
Connection of mains-powered electric devices to the receptacle of the AC output:
Make sure that the mains plug of the other electric device is properly connected to the receptacle of the AC
output.
NOTE
Connect the electric device to the receptacle of the AC output
and check whether it is properly connected.
The connected device must be suited for the operation at 230 V~, 50 Hz AC.
Make sure that the device is switched off before you connect it.
Operation of electric devices
Make sure that the electric devices are switched off prior to use.
Check the battery‘s capacity in accordance with the LED display 1-4. The battery must be charged sufciently.
The useful life depends on the ambient temperature, the charging status of the integrated lithium ion batteries
and the power consumption of the connected device. It is normal that the unit gets hot while supplying current.
ATTENTION
Make sure that the electric devices work properly prior to use.
The max. AC power consumption for electric devices is 300 W.
Due to the different types of electric devices, it is possible that they may not operate
even if their power consumption is less than 300 W.
Compared to an AC power source in a house, it is also possible that a lower power input
may occur for the electric device.
If the unit is connected to a radio, video player, TV screen, etc., it is possible that noise may occur.
Stop use immediately if the current ow is interrupted repeatedly.
Contact the dealer or our customer service center for assistance.
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Switching off the unit
Switching off: turn off the main switch and remove the mains plug of the electric device.
NOTE
If the unit is operated for more than 12 hours without a load, the AC output switches off
automatically to prevent internal consumption. Restart the unit as soon as you wish to use it.
7.3 DC output USB, car accessory socket & LED
Make sure that electric devices, that you want to connect to the DC outputs, are switched off prior to use.
Check the battery‘s capacity in accordance with the LC display. The battery must be charged sufciently. The
useful life depends on the ambient temperature, the charging status of the integrated lithium ion batteries and
the power consumption of the connected device. It is normal that the unit gets hot while supplying current.
ATTENTION
Make sure that the electric devices work properly prior to use.
Only connect appropriate devices that are equipped with a compatible DC connector.
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7.4 Car jump start assist for emergencies:
1. Note that the cubic capacity of a vehicle (e.g. car, including other means of transportation like motorboats)
may not exceed 4 L.
2. Make sure that the battery‘s capacity is greater than 60 % (four battery segments).
3. Make sure that the clips of the jump start cable are not damaged.
Car jump start assist
1. Before you connect the PSU to your car‘s battery, it is necessary to switch off all other loads drawing bat-
tery power in the car
2. Attach the red clip now to the positive pole and the black clip to the negative pole of the car battery.
3. Plug the other end of the jump start cable into the provided socket of the PSU.
4. Turn the key to start your car as usual.
5. After starting, you can remove the cable from the unit and then remove the black clip (ground) and the
red clip (positive) from the car battery. The sequence must always be observed, since noncompliance could
otherwise result in a short circuit.
NOTE
Make sure that prior to starting the red and black clips are securely attached
to the car‘s battery poles and that there is sufcient space between the clips such that they can
not fall or touch each other due to the vibrations of the vehicle‘s engine.
Failure to do so may result in a short circuit and damage the vehicle‘s electronics or even the PSU.
The red and black clips must NOT come in direct contact with one another.
That could otherwise result in serious accidents.
While the car‘s engine is starting, make sure that you stay away to prevent any possible injury
that may be caused by the running engine.
Remove the equipment from the battery within 30 seconds after the car‘s engine has started,
otherwise the PSU may be damaged or accidents can occur.
Check the battery‘s capacity prior to every restart
(make sure that the battery‘s capacity is more than 50 %, i.e. three battery segments are indicated).
Persons (especially children), who are not familiar with the unit,
are not permitted to use the car jump start assist function.
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8. Estimated running time
Device current from the PSU
• Smartphone (2-4 Wh) 100+ charge cycles
• Tablet (25 - 42 Wh) 10+ charge cycles
• Laptop (50 Wh) 8+ hrs.
• Desktop computer (100 W) 4 hrs.
• Mini refrigerator (30-60 W) 6-12 hrs.
• 32“ LCD TV (98-156 W) 2-4 hrs.
• Vacuum cleaner (200-300 W) 1-2 hrs.
• Mixer/processor (200-300 W) 1-2 hrs.
It is a good idea to check the wattage of your device if you want to determine how long the PSU is able to
power it.
Check the capacity for the individual output connections. For instance, the AC connection is monitored by a
power inverter, which enables a continuous output of 300 W. That means if the device requires more than
300W of power over an extended period, the PSU‘s power inverter will switch off. As soon as you know that
your device is compatible, you should determine how long you are able to operate your device with the aid of
the PSU. Here is a quick guide:
Watt hour (Wh) is the unit of battery capacity and measures the amount of power that can be stored after a
full charge. It tells you whether your equipment is compatible with the respective charger. For instance, a 200
Wh battery should be able to power a 100 W lamp for 2 hours (200/100 = 2). If your equipment has a capacity
of 390 Wh, you need to check the limitations of the output connections.
NOTE
The above data are to be used only as reference points.
The approx. values were determined with an ambient temperature of 25 °C and fully charged battery.
These values may vary, depending on the manufacturer of the electric device, unit, etc.
Devices may not operate, even if the output of the power supply unit is below 300W,
for certain types of electrical devices.
In case of overload, the unit is switched off automatically and output is interrupted.
In case of Plasma TVs, LCD TVs with screens greater than 41“, desktop computers, and other devices
with high power consumption, as well as household devices with uctuating power consumption
or with power factor correction may not operate normally or at all, even if the their specied
operating power is below 300W.
8.1 Charging while supplying power at same time
The LE5B power supply unit may supply current during the charging process.
During the charging process, the unit can also supply electric devices with current at the same time.
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9. Storage
1. Charging in full
Fully charge the power supply unit prior to long-term storage. Charge the power supply unit at least once a
year.
ATTENTION
Observe the information on page 12
2. Turning off all switches
As soon as the LE5B power supply unit is charged fully, switch off the main switch and the other ON/OFF swit-
ches and remove the power cord from the AC mains connection.
3. Cleaning
Wipe away any dirt using a damp cloth.
ATTENTION
Gasoline, thinner, kerosene, petroleum, etc. have the characteristics of solvents.
Do not use.
4. Storage
Store the power supply unit only in a dry and dust-free environment which is out of reach of children. Suitable
storage temperature: 0 to 40 °C. Keep out of direct sunlight. Make sure that the unit rests on a stable surface.
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