Laptop AC Adapter With 19v 4.74a For Acer
Is this 19v 4.74a Laptop Charger For Acer can replace 20V 2.25A Power Adapter ?
The notebook power Adapter has two functions: ①, charging the laptop battery; ②, directly supplying power to the notebook.
The output of adapter 19 V 4.74 A is 1 V lower than the output voltage of the 20v power adapter, which does not affect the battery charging: the charging current is controlled by the special power source management module in the laptop.
From the current output capability, the 19 V, 4.74 A ac adapter has stronger Power Supply capacity than the 20v adapter and can be used in place of the 20v power adapter without any harm. [The working current is determined by the notebook.
Products specifications:
Output :19v 4.74a 30w
DC Connector Size:5.5*2.5mm
Nominal Input Voltage:AC100-240V
Input Frequency:50/60Hz
Adapter size:13*5.7*2.9CM
Adapter Weight:263G
Line Regulation:2%
Load Regulation:5%
Ripple Noise:180 Mvp-p
Efficiency:>85%
Operating Temperature:0°C ~40°C
Operating Humidity:5%~95%RH
Storage Temperature:-20°C ~85°C
Storage Humidity:5%~95%RH
Warranty: 2 years
Certificates:CE, ROHS, REACH, FCC, ERP, CB, GS, TUV, UL, CUL, CCC,PSE
MOQ:100pcs
Images: 
Package:
♦ Inner box size: 19*13*4.7 cm
♦ Inner box weight: 40G
♦ PCS/CTN: 50PCS
♦ Carton Size: 48.5 x 32 x 40cm
♦ Gross Weight: 17.36Kg (not include AC Cable weight)
Payment and shipping:
About us:
Shenzhen Yidashun Technology Co.,Ltd founded in 2007,is a professional manufacturer of laptop adapters,universal laptop adapters,ac/dc adapters,wall mount adapters,Switching Power Supply and waterproof LED driver etc.
With more than 300 workers,12 automatic production lines,over 5000 square meters development and production base,our monthly output is 400,000~500,000 pieces.
If you have any question or advise,pls fell free to contact us.
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