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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: OEM
  • Model Number: WAHP06
  • Output Type: DC
  • Connection: Desktop
  • Item Name: 90w laptop power adapter
  • Input: AC 100-240v 50-60hz
  • Output: 19v 4.74a
  • Connector: 7.4*5.0mm pin
  • Weight: 230g
  • Dimension: 127*50*31mm
  • Efficiency: 80%-85%
  • Certificate: CE FCC ROHS
  • Protection: OVP OCP SCP
  • Warranty: 2 years

Packaging & Delivery

Packaging Details PP bag and hard brown box for one adapter;
AC cable and adapter in one box;
Delivery Time 7-10 days after 30% deposit

90W power battery charger 19v 4.74a for HP CQ40 CQ50 CQ60 CQ61 CQ70 CQ71 DV4





100 to 220V AC, 50/60Hz


19V 4.74A


Overload protection

Output over voltage protection

Short circuit protection


CEC power supply standard

CE approved (EMC, LVD)




Mini 85 %

Standard DC Connector

7.4X5.0mm pin


For HP computer


One:  Environment Conditions

     1, Operation Temperature:  -25℃~+60℃

     2, Storage temperature:-45℃~+80℃

     3, Relative humidity:10%~90%

     4, Altitude:≤3000m

     5, Atmospheric pressure:70~106KPa

     6, Cooling:Natural heat conduction


Two:  Input Characteristics

 Project Unit Min Typical Max Test Conditions
 Input voltage range Vac 110 220 240 At room temperature
 Input voltage frequency range Hz 47 50 63 At room temperature



Three:  Output Electronical Characteristics 

The Output Voltage Output Current Range accuracy Load RegulationSource regulation Ripple
+19V 0A~4.74A ≤±3% ≤±3% ≤±2% ≤100mV

 Notice: Ripple test will be at the rated input / output,And at the output increase and 0.1uF film capacitor and a                      

10uF / 50V high frequency electrolytic capacitors, one each,20MHz bandwidth oscilloscope measurement.


Four:  Other Output Characteristics 

ProjectUnitMinPowerMaxTest Conditions
Output PowerW889092Natural Cooling/Full Output
Output Efficiency%838588Rated Input/Output
Temperature Coefficiency/  

± 0.02%



Five:  Protection 

ProjectUnitYes/NoMinTypicalMaxRecovery Characteristics
+19V Output Overvoltage ProtectionVYes   Self-Recovery
+19V Limit Power ProtectionAYes150%  Self-Recovery
Short Cricuit ProtectionAYes---Self-Recovery


Six:  Safety and Insulation Class



Insulation Voltage(output-to-ground)500Vdc

500Vdc /1min / Leakage Current≤10mA

Insulation Voltage(input-to-ground)1500Vac

1500Vac /1min / Leakage Current≤10mA

Insulation Resistance10MΩ

Under normal atmospheric pressure, relative humidity of 90%, the test voltage is 500V DC, the power input to output, input to ground, output-to-ground insulation resistance not less than 10MΩ


Seven:  EMC


Index requirements

Static Electricity (ESD)

Boxes of machine housing after discharge will not affect the work of the power module mounted cabinet

Contact discharge:±6KV

Air discharge:±8KV


Lighting Protection Requirements

Differential mode 2KV/±5 bout;common-mode 4KV/±5 bout

Pass test


line-line 4KV; line-ground 6KV






Eight:  Other Features

ProjectIndex requirements Performance



Pass test


5 ~ 9Hz, the amplitude of 3.5mm, 9 ~ 200 Hz, acceleration of 10m / s2,3 axial, 5 times in each direction of vibration sweep (3 * 50 minutes), the power supply is not damaged. 

Pass test


Half-sine, acceleration of 20G, a pulse width of three directions 11ms, X, Y, Z, each three times 

Pass test

OdorNo odor or harmful gases 

Pass test

Product pictures

Company Information

With 9 years experience in the filed, Shenzhen WAWEIS Technology Co., Ltd is one of the best power supply device manufacturer in China. Our world-class production plant passed ISO9001:2008 & ISO14001:2004 certifications and is equipped with the state-of-art technology and machines.

The main products we make are power adapters, which can be used in laptop, LCD display and LED lights(12v series), Speaker(24v series), Balance car(42v series). All our products comply with European environmental standard as well as RoHS,CE,FCC,KC,PSE,SAA.

At the same time, WAWEIS consumer electronic devices have got a wide range of safety approvals to meet specific international standards & requirements. We have dedicated teams of R&D(6 members), engineers(3 members)and quality control experts(3 members) focusing on products’ quality guarantee. Our strict quality assurance program ensures all our products to meet IEC Standards. In addition, the strong production capacities allow fast lead-time and guarantee fresh & premium products at competitive prices. Headquartered in Shenzhen, we are committed to providing immediate product support and excellent customer services.




Packaging & Shipping

Inner package: PP  bag and brown hard paper box

Outer package: 50pcs per carton or as customized

Delivery time: 3-5days for samples order, 7-15days for regular order beyond 10000pcs.


1, What kind of company we are?
    We are professional power supply manufacturer with high reputation in this field.

2, How we control the quality?
    Aging test for 8 hours, after then we put them into the market.

3, Can we accept samples customized?
    No problem for samples order, and welcome your testing before your big order.

4, What about the production capacity?
    1-2 days for samples order under 10pcs, 7 days for general order under 10000pcs.

5, OEM and ODM are available?
    Yes, we accept customized products

6, Will the delivery time be long for a big order?
    No, we have two special parts in production line, one for samples orders, another for big orders, so we can control the delivery time as we promise in the contract.

7, What is our warranty service?
    For all products we sell have 2 years warranty.


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