VOLTWORKS PS-3000QBR 3000 Watt Pure Sine Wave Power Inverter User Manual

PURE SINE WAVE INVERTER
Usker’s MANUAL
MODEL: VS-3000QBR
V0.22.11

PS-3000QBR 3000 Watt Pure Sine Wave Power Inverter

ETL Listed to UL 458 and CSA 22.2 NO 107.1
Warning : This manual contains important safety and operating instructions . Please read it carefully before use the unit .
SAVE THIS INSTRUCTION MANUAL FOR FUTURE REFERENCE

SPECIFICATIONS

It won’t work till inverter case reaches 104 °F only.
Operating Temperature (Automatic Recovery/ Shutdown)| 32-113°F
Storage temperature| 14~113°F
Size (LxWxH)| 15x 8×6.7 inch
Weight| 15.5Ibs / 7.03Kgs

Remark: Due to the continuous improvement of products, the technical parameters in this manual are subject to change without prior notice.

INTRODUCTION

The pure sine power inverter product line is used for back-up power. The pure sine product line is ideal for sensitive equipment and provides clean power, which is more efficient for back-up power applications. The power inverter transforms DC (direct current) electricity into AC (alternating current) power that  an be used for running a wide variety of tools and appliances. This inverter is perfect for providing mobile power in cars, boats and work trucks. The inverter can also be utilized as a back-up source of electricity in the event of an electrical failure or for several off-grid applications such as camping or in your RV.
Please read this instruction manual carefully and make sure your inverter is installed properly before using.

WARNING AND SAFETY

1. Read the manual before connecting this inverter and keep it for future reference.

2. While opening the product package, please check the integrity of the product and accessories. If there is any problem, please do not use it.

3. While connecting and using for the first time, if there is smoke or explosion sound in the product, please stop using immediately and disconnect the product from the battery and electrical appliances. This may be caused by damage during the transportation or due to moisture during storage in the warehouse before delivery. Please contact your seller in time.

4. During daily use, if there is smoke or explosion sound in the product, please don’t worry, this is due to the internal fuse protection of the product. Please do not disassemble it by yourself. Please stop using the product immediately. Disconnect the product from the battery and electrical appliances. Contact the seller in time and only with seller’s agreement a hired professional personnel can disassemble the product. Otherwise, it may cause electric shock, fire and serious personal injury.

5. Do not put the inverter under direct sun light or near a heating source.

6. The case of inverter will get hot during using. Do not allow flammable materials such as clothing, sleeping bags, carpet or any other flammable materials to touch the inverter. The heat from the inverter can damage these items.

7. The power inverter is designed to be used with a negative ground electrical system! Don’t use with positive ground electrical systems (the majority of modern automobiles, RVs, trucks and boats are negative ground).

8. Do not disassemble the unit randomly: it may cause fire or electric shock.

9. Do not connect the negative to car chassis when use in car.

10. This device should only be serviced by a qualified technician. This item does not have any serviceable parts.

11. Prevent body contact with grounded surfaces such as pipes, radiators, ranges, and refrigerator enclosures during installation.

12. Do not operate the inverter if under the influence of alcohol or drugs. Read warning labels on prescriptions to determine if your judgement or reflexes are impaired while taking drugs. If there is any doubt, do not operate the inverter.

13. People with pacemakers should consult their physician(s) before using this product. Electromagnetic fields in close proximity to a pacemaker could cause interference to or failure of the pacemaker.

14. Keep the inverter well-ventilated. Do not place any objects on top of or next to the inverter or allow anything to cover the cooling fans; inverter will bel overheating, causing a potential fire hazard and/or damage to the inverter.
    Leave adequate ventilation space underneath the inverter as well; thick carpets or rugs can obstruct air flow, causing the inverter to overheat.

15. Avoid unintentional starting. Be sure the switch is in the OFF position when not in use and before plugging in any appliance. Disconnect the battery and inverter when not in use for a long time.

16. Keep inverter away from children. Don’t install the inverter where it is accessible to children.

17. The power inverter will output the same AC power as utility power, please treat the AC outlets as carefully as you would your home AC outlets. Do not put anything other than an electrical appliance into the output terminal. It may cause shock or fire.

18. This product cannot be used for medical and life support equipment.

PARTS LIST

1. DC Input Side
2. AC Output side****
3. Assemble the remote control box

INVERTER INSTALLATION

1. The position of Mounting
   First ensure that there is enough space to install the inverter, while the installation location must meet the following requirements:
   (1) Drying: Do not use water or other liquids dripping on the inverter
   (2) Cool: a working environment temperature of the product is 0-40°C, preferably a temperature of 10-25°C, at a temperature as low as possible within this range
   (3) Ventilation: There should be a certain distance between inverter and other objects, to avoid blocking the products vents.
   (4) Clean: Do install the products in the dusty, wood chips or other particles , If cooling fan is turned on, the particles involved in the inside of the product, thus affecting the normal work
   (5) Itis normal while connecting, inverter and battery, will produce arcs or sparks, so keep it away from flammable objects such as gasoline, alcohol , etc

2. MOUNTING
   The weight of the inverter is very heavy. Be sure to place the inverter on a stable surface such as the floor, a table, or stand. Make sure the areas you place the inverter on can withstand the wight of the inverter. In addition, be sure to affix the product with screws to keep the inverter from falling or moving. Mounting Directions: The inverter can be mounted to a suitable horizontal or vertical panel. Please keep 12″ adequate ventilation space for the cooling f

3. REMOTE CONTROLLER INSTALLATION

1. Fix the remote box on flat surface where a hole should be made, and use 2 screws to fix it through the two mounting holes on the remote controller.
2. Or fix the remote on a standard 86X86mm(3.39×3.39 inch) power socket;
3. Connect the inverter and remote controller by wire before mounting.
   Remark: Without remote controller, you can turn on the inverter by the switch on the inverter too.

BATTERY

1. The battery is designed to supply the inverter with DC input voltage and the rated voltage should be in accordance with the rated input voltage of the inverter. Any voltage exceeding the range of the input voltage of the inverter will cause the inverter to go into overload and could possibly damage the inverter. The battery should supply enough current for the load. The load is the amp or watt rating of the equipment being powered by the inverter. A small capacity battery cannot provide enough power for a large electrical equipment. In this case, the battery will cause the inverter to go into under voltage protection because of the load put on the battery. A simple way to calculate the load or amps required from your battery is to divide watts of equipment by battery voltage.
   Due to the consumption of the inverter itself, the actual current will be about 10%. For example, the voltage of lead acid battery is 12VDC, and load of the equipment is 1000W, therefore, the actual current needed from the battery is about 1000W / 12V = 83.3 amps per hour. Add 10% for efficiency loss and you get 83.3 1.10% = 91.6 amp per hour needed. If you don’t know the wattage of your equipment, you can figure the wattage by multiplying AC amps by AC voltage. For example, a refrigerator is 8 AC amps 120 Volts AC = 960 watts.
   Remember, all equipment has a start-up requirement 3-5x its running wattage. In this example, 960 watts * 3 = 2880 watts needed from the inverter so don’t size your inverter too small.

2. Battery operating time depends on battery capacity and load. The formula for operating time is: battery capacity divided by the value of the load divided by battery voltage times 1.10%. For example, using the numbers from above, the battery specification  is 12V, 200Ah capacity and the load is 1000W. Take battery capacity 200Ah / 91.6 amps = 2.18 hours of run time if you fully deplete the battery. This is NOT recommended. Deep cycle batteries last longer when they are only depleted to 50% of capacity.

3. Sizing the battery bank
   Inverter Version| Inverter Rating power| Max Current (A)| Battery for lasting 1 hour| Battery for lasting 2 hour| Battery for N hour
   ---|---|---|---|---|---
   12V| 600W| 57| 70| 140| Nx70AH
   1000W| 95| 115| 230| Nx115AH
   1200W| 114| 140| 280| Nx140AH
   1500W/1600W| 152| 180| 360| Nx180AH
   2000W/2200W| 209| 250| 500| Nx250AH
   2500W| 238| 290| 580| Nx290AH
   3000W| 285| 340| 680| Nx340AH
   4000W| 380| 460| 920| Nx460AH
   5000W| 475| 570| 1140| Nx570AH

Note:

1. The battery specifications provided in the above table are for reference only.
   The selection and use of the battery should also refer to the battery instructions, especially for Lithium battery and LifePO4 batteries, such as: whether the maximum discharge current of the battery meets the working current of the product; Whether the low-voltage protection of the battery is within the working range of the product, etc. Furthermore, whether the battery is fully charged or false capacity labeled which will lead to insufficient working hours of the product. According to the life span of the battery, the battery capacity will decline after long term of use, which will also affect the working hours of the product.

2. GIANDEL recommends using “Deep Cycle” or Marine rated batteries.

WARNING:

1. Do not connect different brand or different capacity, specification of batteries in series or parallel, it is unsafe and may damage the batteries or inverter.

2. Inverters are not recommended to be used when the battery is being charged, including solar charging; When the inverter is used under the condition of charging battery, the voltage fluctuation at both ends of the battery is relatively large, and the ripple  voltage and current will cause the following adverse factors: The battery cannot be fully charged when the inverter is working, and the charging voltage ripple will affect battery life.
   While charging battery, the ripple voltage and current are large, and the input voltage and current are unstable, which will affect the working efficiency of the inverter and easily damage the product. The charging device that charges the battery may cause high charging voltage, which will trigger the inverter input High Voltage protection fault and affect the work of the product. If it happens, the charging device must be disconnected.

3. Generally, do not connect batteries in parallel more than FOUR pieces.

CONNECTION

1. Grounding
   The power inverter has a terminal on the rear panel marked ” Grounding “or . This is used to connect the chassis of the power inverter to the ground.
   The ground terminal has already connected to the ground wire of AC output receptacle through the internal connecting wire.
   The ground terminal must be connected to the ground wire, which will vary depending on where the power inverter is installed.1.In some fixed available position| Connect the ground terminal to the earth
   ---|---
   2.Indoor conditions| A.Connect to household metal water pipes, metal frames (door frames, window frames) connected to the earth
   B.Connect to the nails on the wall or ground which contact to the earth
   C.Connect to the grounding system of the mains grid which is connected to the ground wire of the socket (Note:  this connection must be operated by a professional electrician)
   3.Outdoor conditions| Connect one end of earth wire to the inverter grounding terminal, the other end to the nail and insert to the earth.
   4.In a Vehicle, boat or ship| Connect to the chassis of vehicle or grounding system of boat, ship.

Warnings:
To make sure the firmness of the connection. The ground wire must be 14AWG (2.08 mm’) or even larger.
Do not operate the power inverter without connecting to the ground. Electric shock may result.

2. Connect to the battery
   1). Please do all the safety precautions before connection, then check whether the battery voltage is in accordance with the input voltage of the inverter.
   Only the 12 voltage of battery allowed to connect with the 12V inverter; 24V battery allowed to connect 24V inverter.
   (1) Secure the provided Negative (black) DC cable connect to the Negative (-) bolt on the inverter, and the other end to the Negative (-) post on the battery.
   (2) Secure the provided Positive (Red) DC cable to the Positive (+) bolt on the inverter, and the other end to the Positive (+) post on the battery.
   (3) The nuts of the connection posts must be tightened to ensure well connected.
   (4) Press the power switch for one second, because it is a long press type switch.
   2). The connecting wire must be big enough to bear current, or else the inverter can not support big load because of voltage reduce caused by the small crosssectional wire. Refer to the below table, to select the input DC wire or larger one.

Inverter Input voltage| Rating power| Max current of cable| Specification of wire length1 m| Specification of wire lengthl-2m| Specification of wire lengthN m
---|---|---|---|---|---
12V| 1000W| 100A| 6AWG(13.30mm2)| 3AWG(26.67mm2)| Nx13.30mm2
1500W| 150A| 4AWG(21.15mm2)| 1AWG(42.41mm2)| Nx21.15mm2
2000W| 200A| 3AWG(26.67mm2)| OAWG(53.49mm2)| Nx26.67mm2
2500W| 250A| 2AWG(33.62mm2)| 00AWG(67.43mm2)| Nx33.62mm2
3000W| 300A| 1AWG(42.41mm2)| 2x 1AWG(84.82mm2)| Nx42.41mm2
4000W| 400A| OAWG(53.49mm2)| 2 X OAWG(107mm2)| Nx53.49mm2
5000W| 500A| 00AWG(67.43mm2)| 2 x00AWG(135mm2)| Nx67.43mm2
24V| 1000W| 50A| 9AWG(6.63mm2)| 6AWG(13.3mm2)| Nx6.63mm2
1500W| 75A| 7AWG(10.55mm2)| 4AWG(21.15mm2)| Nx10.55mm2
2000W| 100A| 6AWG(13.3 mm2)| 3AWG(26.67mm2)| Nx13.30mm2
2500W| 125A| 5AWG(16.77mm2)| 2AWG(33.62mm2)| Nx16.77mm2
3000W| 150A| 4AWG (21.15mm2)| 1AWG(42.41mm2)| Nx21.15mm2
4000W| 200A| 3AWG (26.67mm2)| OAWG(53.49mm2)| Nx26.67mm2
5000W| 250A| 2AWG (33.62mm2)| OOAWG(67.43mm2)| Nx33.62mm2

Notice:
(1) The table above is only for your reference. In practice, the thick wire can be replaced by two thin parallel wires if only the total cross-sectional area of the wire meets the requirements.
(2) In high current, the input DC wire may produce voltage drop, therefore, the operating voltage should be subject to the value on the terminals. If the voltage drop is too large, you can increase the cross-sectional area or reduce the length of the lead.
(3) Connect cathode wire of the battery to the cathode terminal (black) on the rear panel of inverter and then connect the anode wire of the battery to the anode terminal (red) on the inverter, and fix them.
Warnings:
1) Please wear eye patch and work clothes when working around the battery to avoid the acid and corrosive objects harm your eyes and skin.
2) Prepare enough water and soap. In case the acid materials contact eyes or skin, clean it by soap and water as soon as possible. If the acid materials spay to your eyes accidentally, clean it by cold water immediately and then sent to hospital.
3) Do not put any combustible material in the location of installation for spark will result when it is connected to the battery.
4) Keep good ventilation. The battery may produce a little inflammable gas when it works, so keep away from the inverter and it is better to install them in different space.
5) Fix the connecting wire of the input DC, or it will result the over- reduction of the voltage or over-temperature of the wire.
6) Reverse connection of the polarities or the short circuit will burn the fuse or result the permanence damage of the internal elements of inverter.
7) Take away the metal accouterment, such as ring or watch, when installation to avoid the short circuit.
8) Although there is over-voltage protection, it may also cause damage of the inverter if the input voltage is too high.

3. Connection of the AC appliance
   Put the power plug of the AC appliance load into the output AC receptacle of the inverter directly.
     Warnings:
   (1) Make sure that the switches of appliances are in OFF position before connection.
   (2) Check the power cord. If it is damaged, it should be connected after replacement. Output socket| AC output voltage| Single socket max output current Single socket| max output power
   ---|---|---|---
   | 110-120VAC| 15A| 1500W
   | 220-240VAC| 16A| 3000W
   | 220-240VAC| 13A| 2500W
   | 220-240VAC| 10A| 2000W
   | 220-240VAC| 13A| 2500W

4. Connection of there mote control box
   Directly to the two ends of the cable respectively inserted into the inverter and wired remote control remote control box on the interface.

5. Hard wire block terminals
   The hard wire block terminals are specially designed for heavy duty loads over 1500Watts. Please refer to the bellow table to choose suitable wires:| Max power of load| Output Voltage| Max current| Wire for 1 meter| Wire for 2 meter| Wire for N meter
   ---|---|---|---|---|---|---
   12V| 2000W| 120V| 17A| 13AWG 2.6mm2| 10AWG 5.26mm2| Nx2.6mm2
   2200W| 18A| 13AWG 2.6mm2| 10AWG 5.26mm2| Nx2.6mm2
   2500W| 21A| 12AWG 3.3mm2| 9AWG 6.63mm2| Nx3.3mm2
   3000W| 25A| 11AWG 4.2mm2| 8AWG 8.37mm2| Nx4.2mm2
   4000W| 33A| 10AWG 5.26mm2| 7AWG 10.55mm2| Nx5.26mm2
   5000W| 42A| 9AWG 6.63mm2| 6AWG 13.30mm2| Nx6.63mm2

USAGE

1. How to use inverter
   (1) Check the output voltage and capacity of the battery to make sure it is in accord with the requirements of the product.
   (2) Connect the battery and the DC cable of the inverter to ensure that the polarities are not connected reversely and in tight connection.
   (3) Long press the switch or the remoter of inverter for over 0.5s and then stop, the indicator light on the inverter or on the remote control box is on, it means that the inverter starts to work normally. This opening method can avoid turning on the unit by mistakes due to the interference or any factors.
   (4) Switch off electrical appliances and put its plug to the AC output socket of inverter. Then switch on electrical appliance.
   (5) The cooling fans inside the inverter do not work until the case temperature rises up to about 40°Cor the load power is more than 40% of rated power.
   (6) Switch off inverter and remoter to stop working. At that time, the indicator lights in. Both inverter and remoter are off. The inverter does not consume current of the battery when it is switched off.

2. How to use USB power supply
   This model with USB output, can provide stable voltage 5V DC, maximum current 2.4A directly for the portable device with USB port.
   Notice: Before using the USB power supply, please make sure the device can be charged by USB and the maximum working current is no more than 2.4A.

ABOUT SOFT START TECHNOLOGY

The output voltage rises up from low to normal when the inverter is turned on.
This can reduce attack of high startup currents, which can make startup easier of large inductive loads.

THE OUTPUT WAVE FORM

The output wave form of this inverter is Pure Sine Wave, which is much like the one from utility-supplied AC electricity, even more purer; pure sine wave is applicable in most of loads, including electrical equipments, such as Linear Adaptor, switching power supply, transformer, and motor and so on.
Comparing with Modified wave form, for inductive loads such as refrigerator and electric fans, pure sine wave form can improve its power factor and the battery’s efficiency and reduce working noises effectively from appliances. For capacitive loads such as adapter of lap-top, pure sine wave can lower the rush current at work and reduce interferences to increase reliability and prolong the life of the product.

LCD Display

While inverter is working, the LCD display will show Battery Status Level, Pure Sine Wave Symbol, Input Voltage , Output Voltage ,current etc . Once the inverter is on protection mode, the following codes will shown:

1. LO: Low voltage protection
2. HI: High voltage protection
3. OL: Overload or short-circuit protection
4. OH: overheat protection.

PROTECTIONS IN THE INVERTER

1. Input under-voltage alarm: When the input DC voltage is lower than 9.8V, the buzzer will whistle intermittently to remind that the inverter will go into the under voltage protection.
2. Under voltage protection: The inverter will automatically shut down when the input DC voltage is lower than 9.5V. The buzzer will whistle continuously and the green light is off, red light is on. Please turn off the inverter and use it after recharging the battery.
3. Over voltage protection: The inverter will automatically shut down when the input DC voltage is higher than 16V. The buzzer will whistle continuously and the green light is off, red light is on. Please turn off the inverter and adjust the input voltage to the admissible range.
4. Overload protection: The inverter will automatically shut down when the load is higher than the rated power. The buzzer will whistle continuously. Turn off the inverter and resume to normal operation after taking away the excessive load.
5. Short-circuit protection: The AC output will be automatically shut down when short circuited. It will automatically reset after the problem is solved.
6. Thermal protection: The unit will get hot during operation. If the temperature is higher than 149°F, the inverter will automatically shut down. Then the buzzer will whistle continuously and the green light is off, red light is on. Please turn off the inverter, and continue using it after the temperature goes back to normal naturally. Meanwhile find out the factors causing the fault, such as ventilation, ambient temperature, vent, load power etc. It can avoid similar things from happening again.

NOTE: In the case of over voltage, under voltage and thermal protection, the inverter will shut down. When the inverter is in the OFF position, the inverter doesn’t consume battery current.

HI-POT TESTING OF DC to AC Inverter

Most of our AC inverters are Listed by Intertek to conform to UL 458 One of the requirements of UL 458 is that all AC inverters pass a High Voltage Dielectric Withstand Test, commonly called the Hi-Pot Test. The voltage applied to the control is usually equal to 1,000 volts, plus two times the line voltage rating of the inverter. Therefore, the standard hi-pot voltage for 115 VAC inverter is 1,250 VAC. For 230 VAC or dual voltage inverters, the hi-pot voltage is 1,500 VAC.
This power inverter is hi-pot tested before it leaves the factory, with a UL Certified hi-pot tester, set to the voltages shown above.
For UL Listed equipment, UL requires that customers perform a final Hi-Pot test of their machine with the AC inverter installed. Hi-Pot testing is used to detect any electrical leakage between live metal components and the frame of the machine that is connected to earth ground. This helps prevent electrical hock to the user of the equipment should a live component touch the frame and the user touch the frame and ground at the same time.
(CAN/CSA-C22.2 No. 107.1) and are identified with the cETL Listed Mark.

TROUBLESHOOTING TIPS

Input Battery voltage is below 9.8V+/-0.5V(12V version); 19.6V+/-0.5V(24V version)| ·    Recharge the battery

·    Battery may be too small. Please refer to instruction for
ecommended battery sizes.
·    Check the cable connections and ensure the cable sizes are sufficient. Use provided cables if included. The shorter and thicker cables the better.
·    One or some of the batteries in the battery group
may be defective, remove the defective battery
·    The inline fuse (if has) may be too small.

High input DC voltage. The input battery voltage is above 16V(12V version) or 32V (24V version)| ·    Check the battery charger is not connected to the battery.
·    Do not use it when the battery is charging Disconnect the solar panel while the battery is fully charged.
·    Confirm whether the input battery is correct.
Overload| Reduce the load power or choose a bigger inverter.
Over temperature| ·    Turn off the load and let it cool naturally for 10 to 30 minutes. Restart it after it resumes to normal temperature . Reduce the load .
·    Avoid blocking the vent and improve the ventilation condition.
No AC output voltage?| 1.  The power switch is off.
2.  Poor contact with battery .
3.  Inline fuse(if has) may be burnt.| ·    Press the power switch for 1-2 second to turn it on, it is a long press type switch.
·    Check the cables and make sure they are tightly connected .
·    Check the inline fuse is fine or remove circuit breaker to test the inverter again.
·    One or some of the batteries in the battery group may be defective, remove the defective battery.
Output voltage

below 100Vac (110-120V inverter) or 200 Vac

(220-240V inverter) ?

| A True RMS multi meter is required to properly measure output voltage of modified wave inverter| ·    Test output voltage with a True RMS meter
·    Try to maintain the input voltage in the range of rated power.
·    Change the battery of the meter then test again .
Cannot drive the load even less power than the size of inverter?| 1 . Power of load is too large, or the actual power of the appliance exceeds the max power of inverter.
2 . The starting power is larger than rated power (especially for appliances with motor, this kind of inductive loads require a large rush of power to start. Even a 80W fridge may need a 1000 watt inverter) .
3. Battery is too small.| ·    Reduce the load power, or turn on the appliance first, then turn on the inverter.
·    Choose a bigger inverter.
·    Change a bigger battery and ensure fully charged.
·    The inline fuse(if has) may be small.
·    Choose the shorter and thicker cables.
Tester indicated “Open Ground”| This is because it is not connected to a “true Earth ground”, meaning it is not connected to a metal rod stuck in the Earth. It would be impossible to do so in a boat or car while moving . The power inverter DOES NOT and cannot create a true Earth ground on its own .| · Don’t need the tester to do the Grounding Test.
·    Refer to the manual to do the Grounding
·    Choose an inverter with GFCI sockets
Starting alarm ?| The main reason is that the instantaneous current is too large, which leads to the detection of low voltage and triggles under-voltage alarm .| ·    Please restart the inverter several times.
Got 40V or so while testing inverter’s ground wire and zero line ?| This voltage has no meaning, zero line can be ground .| ·    This is normal , there is no current leakage.
Cooling Fan noisy| Object may be stuck in fan| Inspect fan area at rear of unit to ensure no object is obstructing fan movement

WARNING: REVERSE CONNECTED THE CABLES WILL DAMAGE THE INVERTER AND AVOID YOUR WARRANTY!
If the unit still doesn’t work normally after using all the methods above, it maybe the internal faults of the circuit. Please contact sefler for warranty.

WARRANTY

VOLTWORKS will replace any products that are found to be defective due to manufacturer flaws based on eligibility. Refunds issued by VOLTWORKS must be purchased directly from VOLTWORKS and are only available to the original purchaser within the first  30 days. We do not issue refunds for items bought by third party retailers.
The warranty is not transferable. VOLTWORKS is not responsible in any way for any damages, losses or inconveniences caused by equipment failure by user negligence, abuse or use non-compliant with the user manual or any additional safety, use or warnings included in the product package and manual.
The warranty only covers purchase within the 48 contiguous states of United States of America if you purchased from the USA. For purchases made outside the 48 contiguous states such as AK, HI, PR or Canada, we will replace the unit under the warranty upon receipt of a proven defect by Video or Picture.
However, the replacement will only ship to a freight forwarder or address within the 48 contiguous United States. The consumer is responsible for arranging shipment outside of the 48 contiguous states.
VOLTWORKS assumes no liability for damage caused using this product other than for its intended use or as instructed in the user manual. Some states do not allow this exclusion or limitation of incidental or consequential losses, so the foregoing disclaimer  may not apply to you. This warranty gives you specific legal rights and you may also have other rights which may vary from state to state.

The following situations will avoid warranty:

1. The box is distorted, damaged or changed and interior parts damaged for an exterior hit or drop not reported at delivery time;
2. Connect the battery cables incorrectly and reversing the polarity
3. Dismantled or repaired the unit by an unauthorized person
4. The product was damaged for incorrect installation or operation.

Defective products & Returns
If your product is defective within the warranty period, please email our Customer Care Team at usvoltworks@gmail.com .To expedite your issue, please provide the following 4 items:

1. Copy of the invoice, order information showing the date of purchase.
2. Serial Number which usually found nearby the side cooling fan.
3. Picture or video of the issue or defect that you are experiencing
4. Shipping address information.

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