Laptops forum

General discussion

Laptop Power Adapter


I have an Acer Aspire 5612 WMLi laptop. The power adapter is acting up (i.e. plug it in and after about 5 seconds the green light goes out and the computer switches to the battery). I am looking into a replacement adapter. My local computer store sells Dr. Battery adapters. Their website says that the replacement for my laptop is a 19V/3.42A unit but my adapter says it is 19V/4.74A.

Should I get this adapter or try and find a 4.74A unit? I am not very familiar with power requirements and what they mean.

Thanks in advance.


Discussion is locked
You are posting a reply to: Laptop Power Adapter
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: Laptop Power Adapter
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Collapse -
Take my advice . . .

In reply to: Laptop Power Adapter

Two things you DO NOT USE AFTERMARKET for. Printer ink and power supplies.

Save a few bucks on an aftermarket power supply and it breaks. Who do you call? It over surges and kills your battery or worse, the charging circuit in the laptop and fries the motherboard. Is that worth saving a few bucks? Not for me. Get an Acer power supply.

Collapse -
Get from Acer Service Centre

In reply to: Laptop Power Adapter

Well, ring them up to check which retail sells the part you're looking for.

Not sure whether company like Targus which sells adapter for various laptop model will be suitable. Given the 19V/4.74A being the original and 19V/3.42A to me looks like it's an underpowered adapter, which is go charge up your battery way slow and won't likely be something I will use to charge up an old battery.

Collapse -
my experience

In reply to: Laptop Power Adapter

for the Acer laptop,you can check the bottom of the laptop ,for some model you can find there is 3.42/4.74 these number,it means you can use 3.42A adapter or 4.74A adapter for the same laptop.


Popular Forums

Computer Newbies 10,686 discussions
Computer Help 54,365 discussions
Laptops 21,181 discussions
Networking & Wireless 16,313 discussions
Phones 17,137 discussions
Security 31,287 discussions
TVs & Home Theaters 22,101 discussions
Windows 7 8,164 discussions
Windows 10 2,657 discussions


Sublime suburban chariot

High on style and technology, the 2019 Volvo XC90 is an incredibly satisfying everyday crossover.