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Item: BWT-0202B
150W DC To AC
Pure Sine Wave Inverter (24V)
User’s Manual
Baiwatt 150W Pure Sine Wave Inverter Tech
Introduction
Thank you for purchasing Baiwatt 150 Watt DC to AC Pure Sine Wave Inverter. It
delivers a true sine wave AC identical to that for commercial power. Use this inverter
to power AC appliances in your car. Pure Sine Wave AC means that your sensitive
equipment will operate properly. Furthermore, appliances with motors operate cooler,
quieter and more efficiently when they are powered by sine wave AC.
This inverter is powered from 24 volts DC and it will continuously deliver 150 Watts
(300 watts at peak) AC power at 110/220 volts, 60/50 Hz. Advanced
microprocessor-controlled circuits run cooler and are more reliable than competing
units.
It also operates at high efficiency (up to 90%) that result in long run time and
extended battery life compared to other inverters with this level of power output.
A USB power port provides a convenient way to power USB appliances or charge cell
phone, iPad, camera, PSP and audio-video electronic devices. This inverter is supplied
with car cigarette lighter that connect the inverter to a DC power supply.
Read and understand this manual before installing and operating this inverter. Keep
this manual for future use.
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Baiwatt 150W Pure Sine Wave Inverter Tech
General Instructions
 Keep the inverter away from any direct heat sources or combustible materials.
 Check the input current and voltage does match the DC sources or not. This
inverter is designed to operate from a 24 volt DC power source only.
 Do not attempt to connect the inverter to any other owner source, including
any AC power source.
 Keep the inverter away from children.
 Always disconnect the cigarette lighter to the car DC outlet when you are not
using the power inverter.
 Note that damages caused by improper handling, ignorance to the operating
manual or interference by unauthorized persons are excluded from the
warranty.
WARNING
NEVER DISMANTLE THE INVERTER INAPPORPRIATE REPAIRS CAN CAUSE
CONSIDERABLE DANGERS FOR THE USER.
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Baiwatt 150W Pure Sine Wave Inverter Tech
Fort Panel
 5V, 2400mA USB port---This USB port charged for iPhone/iPad, cell
phone, camera and PSP.
 AC Outlet---Multifunction AC outlet, fulfill all kinds of electronics
socket.
 Switch Button---Control the inverter’s electrical.
Switch Button
USB Port 5V, 2.4A
AC Outlet
Rear Panel
 Type “B” Cigarette Connector---Connect to car cigarette lighter.
 Cooling Vents
Cooling Vents
Type “B” Cigarette
Socket
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Baiwatt 150W Pure Sine Wave Inverter Tech
Load Considerations
The startup load of an appliance is a major factor of whether this inverter can power
it. Startup load is momentary. With many appliances, it is approximately twice the
continuous load, but some appliance startup loads can be as high as eight times the
continuous load.
To determine if any appliance or tool will operate with this inverter, run a test. This
inverter will automatically shut down in the event of an output overload, so there is no
danger of damaging either the inverter or equipment. When lit, a red LED indicator
signals a fault.
Maximum Power From Vehicular Accessory Sockets
Most Vehicular accessory sockets that are controlled through a vehicle’s ignition
switch are fused at 15 amps. This limits inverter output to approximately 150 watts.
All inverter will shut off when the battery discharges to 19.5 volts. This lower
battery voltage still allows the vehicle to start.
Maximum Power From Vehicular Accessory Sockets
Do not exceed the 150 Watt maximum AC load or the inverter will shut down.
Most other electrical tools, appliances and audio/video equipment have labels that
list the unit’s power requirements in watts. If the device is rated in amps, multiply
the amps by 110/220V to determine the watts. For example, an appliance rated at 0.5
amps will draw 60watts.
WATTS= VOLTSxAMPS
Remember to consider the startup surge that motorized appliances will cause. Do not
exceed the 300 watt momentary surge rating of this inverter. This can cause
immediate overload shut down and blow a fuse. A fuse protects the Accessory or
Lighter Socket.
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Baiwatt 150W Pure Sine Wave Inverter Tech
Connecting the Inverter
 Connect the cigarette cable to DC input port.
 Connect the cigarette lighter to car power outlet.
 The inverter is ready for operation when the green LED-display lights up.
 Now switch on the (external) devices connected with the inverter.
Television And Audio Equipment Suggestions
Although all inverters are shielded and filtered to minimize signal interference, some
interference with your television picture may be unavoidable, especially with week
signals. However, here are some suggestions that may improve reception.
 Make sure that the television antenna produces a clear signal under normal
operating conditions (i.e. plugged into a standard outlet).
 Sometimes vehicle alternators produce some electrical noise. There are
filters available to mount on the alternator to reduce noise.
 Change the positions of the inverter, antenna cables and television power core.
 Isolate the television, its power cord antenna cables from the 24 volt power
source by running an extension cord from the inverter to the television set.
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Baiwatt 150W Pure Sine Wave Inverter Tech
Troubleshooting
PROBLEM: No output voltage---No LEDs lit
Reason
Solution
Fuse
Check vehicle’s fuse’s, replace with the
same type and rating fuse
PROBLEM: Inverter is shut down---No LEDs lit
Reason
Solution
Battery voltage below 19.5 volts
Charge or replace battery.
Battery voltage above 29.5 volts
Check the battery voltage
Short circuit
Switch
off the inverter,
check the
connecting way
Inverter is overheating (thermal shut  Keep the inverter cool.
down mode).
 Check for adequate Ventilation.
 Reduce the load on the inverter to
rated continuous power output.
PROBLEM: Inverter shut down---Fault LEDs lit
Reason
Solution
Equipment being operated overload
Use a higher voltage inverter or do not use
this device.
Disposal of the Inverter
Dispose of the appliance through an approved disposal centre or at your
community waste facility. Observe the currently applicable regulations. In case of
doubt, please contact your waste disposal centre.
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Baiwatt 150W Pure Sine Wave Inverter Tech
Specifications
 Output Waveform: Pure sine Wave
 Input: 19.5—29.5VDC
 Output:110/220VAC (selection), 60/50Hz
 Continuous Power: 150 Watts
 Peak Surge: 300 Watts
 Efficiency: >90%
 Frequency: 60/50Hz
 Total Harmonic Distortion (THD): <3%
 Battery low alarm: 20.5V±0.5VDC
 Battery low shutdown: 19.5V±0.5VDC
 Over voltage shutdown: 29—29.5VDC±0.5VDC
 Cooling fan is thermally controlled
 AC output socket: one standard
 USB Port: 5V, 2400mA
 Temperature shut off: 65℃±5%
 Operating temperature: 5 to 45℃
 Operating humidity: 0—89%
 Dimensions: 140x85x37mm
 Net Weight (approximate): 360g
Specifications are subject to change without notice.
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Baiwatt 150W Pure Sine Wave Inverter Tech
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Services e-mail: Baiwatt@vip.163.com
Add: Rom 2612, Secondly Bldg. Kaisa Centre, No.9 Huzhou Road, Huizhou City
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