DC to AC 300W off-Grid Car Power Inverter with UPS Charger (QW-M300UPS)

US$25.00
50-99 Pieces
US$24.62
100-499 Pieces
US$23.00
500+ Pieces
Port:
Guangzhou, China
Production Capacity:
5000PCS/Month
Payment Terms:
T/T, Western Union, Money Gram

Last Login Date:

Jul 31, 2025

Main Products:

Power Inverter, Solar Charge Controller, UPS Inverter with Charger, Pure Sine Wave Power Inverter, DC AC Power Inverter, Car Power Inverter, Solar Inverter, Hybrid Solar Inverter, Inverter, Hybrid Inverter

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Product Description

Company Info

Basic Info.

Model NO.
QW-M300UPS
Nature of Source Flow
Certification
RoHS, CE
Output Power
201 - 300W
Grid Type
off-Grid Inverter
Output Type
Circuit Topologies
Nature of Wave String
Sine Wave Inverter
Type
DC/AC Inverters
Rated Power
Surge Power
Output Frequency
Operation Voltage
170-250V
Output Voltage
100/110/120/220/230/240VAC
DC Voltage
12V or 24V
Voltage Range
DC10V-15V or DC20V-30V
Over Voltage Shut Down
15.5+0.5V
Efficiency
>90%
Charge Current
Max 5A
UPS Function & Battery Charger
300W UPS with 6A Charger
UPS Transfer Time
<0.5s
Thd
<3%
No Load Current
<0.4A
Keywords
DC to AC 300W off-Grid Car Power Inverter with UPS
Trademark
QUEENSWING
Transport Package
Standar Export Carton
Specification
203*140*64mm
Origin
Guangzhou, China
HS Code
8504403090

Product Description

DC to AC 300W off-Grid Car Power Inverter with UPS Charger (QW-M300UPS)

Feature:
1. Auto battery charging
2. Universal Protection Circuit: Over-Voltage, thermal protection, earth fault protection, overload protection, short circuit protection.
3. Inverter and charger indicator: Fully charged, Public Power, Inverter fault.
4. Dual Switch (Inverter, Charger) supporting battery deep discharge
5. Transfer time between bypass model and inverter mode less 12Ms, no influence in appliances work when public power off.
6. Two power switch controller(inverter switch, charger switch), so that it can support battery deep discharge.
7. PWM high-frequency technology - small size but big power.
8. Fast Charging:5A charging AMP
9. Quiet Operation: Fan move only when necessary
10. High surge and efficient
11. Battery voltage display - so you know battery level anytime
12. AC voltage display




This is not only a power inverter, it is a 12V battery charger and an automatic UPS
UPS =(Uninterruptible Power System )
When the mains is on, the current through the inverter power to the load, and at the same time charge the battery. When mains drops, it will automatic transfer and let the battery to supply power for the load: Current flow direction is: Battery - inverter - Load.


Specification
300W MODIFIED SINE WAVE POWER INVERTER WITH CHARGER
OutputOutput Voltage100/110/120/220/230/240VAC
Rated Power300W
Peak Power600W
WaveformModified Sine Wave
Frequency50Hz/60Hz
Output Voltage170-250V
no-load loss<0.2A
Efficiency>90%
InputLED indicatorWorking status,error status, charging status
Input VoltageDC10-15V ,DC20-30V
Working Voltage12VDC
ProtectionsAC Low Voltage Protection≤150V
Low voltage alarmDC 10.0- 11.0V ,DC21V
Low voltage shut down10+0.5V
Over voltage shut down15.5+0.5V
Over load shut down350W over 10 seconds
Overheat shut down>75ºC
OverheatOutput shut off
Working temperature'-10ºC and +50ºC
ChargerCharge CurrentMax 6A
UPS Transfer Time(inverter to AC)0.5s
UPS Transfer Time(AC to inverter)1s
PackingProduct Size242*95*54mm
Inner box size260*130*95mm
Net weight0.8±0.2KG
Gross weight1±0.2KG
Packing Qty10PCS/CTN

Protection Function:
* Low voltage alarm & Shutdown
* Over voltage protection
* Overload protection
* Over temperature protection
* Short circuit protection
* Reverse Polarity protection
* Soft start
* Auto reset after being in protected




Applications:

Ideally suitable for Journeys, Camping, Tents, Boat Trip, Working on the way and everywhere, where is no electricity!
Simply connect with 12V/24V Battery as in a Car, Motorcycle, Camper or Boat and use 110V/ 220V electrical appliances.


1. It is well suitable for supplying power for your notebook, digital camera, video camera and other appliances when you travel on the vehicle, camp, boat and other outside activities.

2. It can also be widely used in the districts with unstable power or supplied power by solar or wind energy sources.

3. Besides, it supplies a stable power for household appliances, such as TV, computer, DVD, VCD, satellite receiver, printer, fluorescent lamp, cooler, stereo, fan, electric drill, drill press, lighting, motor, game player, etc.
                                   User Guide
ApplicationWattageInverter Wattage
150W300W500W800W1000W2000W3000W4000W
Mobile phone5W
12 inch color television16W
Video games console20W
Electric light25W
Satellite TV receiver30W
CD or DVD player30W
HiFi stereo 4-Head VCR40W
Guitar amplifier (at average volume)40W
Stereo system (at average volume)55W*
Electric fan55W
Notebook60W
GE 9 inch color TV/radio/cassette65W
19 inch color TV80W
20 inch VCR combo110W
27 inch color TV170W 
Stereo amplifier250W **
Small-medium printer350W  ***
Home theater system400W  ***
Power drill400W  
Rice cooker500W  
Small coffee machine600W   **
Refrigerator750W   ***
Small microwave oven800W   ***
Toaster1000W    **
Hair dryer1000W     
Full size microwave oven1500W     ***
Electric kettle1800W     
Induction cooker2000W     ***
washing machine2500W      **
Air conditioner 16000BTU2500W       *
Air compressor 3HP2800W       *
Heavy duty power tools2800W       *
Air conditioner 22400BTU3500W       *
          
Note: For those starred models, pure sine wave inverters are preferred.

Other products:


Warranty:
L - The good construction warranty-1 years
L - Your client satisfied on the right schedule and quality
L - Your can get good reputation from your market and obtain more orders
L - Our professional service before and after sale
L - The reasonable price

Some about us
Queenswing is a professional manufacture specialized in Power inverter and solar products, We have professional development team. We pursues to establish the culture of "quality first, reputation best ".
Product category
Car Power inverter
Car Inverter with USB Port
Pure sine wave invertrer
UPS Pure sine wave inverter with charger
Modify sine wave inverter
UPS power inverter with charger
Solar energy power source
Solar charge controller

Our products usually are exported big quantity in to Europe, USA, African, Russia, Australiaetc. And our power inverter serials enjoy better reputation. With reliable quality and stable performance.

Payment Terms:
T/T, Western Union, Money Gram
Production arranged after receipt of payment.

Lead Time:
Sample order will be delivered within 7 working days.
Order quantity below 100PCS, delivery time is 7-15 working days.
Container order will be delivered within 15-30 working days.

Shipment:
Courier: FedEx, DHL, TNT, UPS, Aramex, EMS ect.
Forwarder: By sea / air or Customer designated


FAQ:

1. What is inverter?
Inverter is an electronic equipment that turn 12v/24v/48v dc into 110v/220v ac.

2. What is the difference between the inverter with UPS + charger and inverter with charger?

A2: UPS inverter: When the mains is on, the current through the inverter power to the load, and at the same time charge the battery. When mains drops, it will automatic transfer and let the battery to supply power for the load: Current flow direction is: Battery - inverter - Load.

With battery without UPS inverter: When the mains is on, the main electricly charge the battery, and the current of the battery through the inverter power to the load, always use battery power, without automatic transfer function.


3. What can a UPS do for me?

A1: Every UPS will supply power to a load (such as a computer, telephone switch or medical equipment) when mains power fails, it may also condition the power and prevent spikes, brownouts, interference and other unwanted problems from reaching the supported equipment.
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