AC voltage charge info help

I just bought an HP ac cord. And though it charges my acer laptop....I'm feeling unsafe about voltage charges. They both have 19v output specs, but I'm totally new to all this voltage thingy, than I don't even know whether I'm doing this right or not. To me, the laptop is charging, but I don't want to risk anything, so should I just return the hp cord, or not. Thank you.

Hrmm, you may want to look up the specs on your particular Acer model and cross-check them. Laptop makers change the schema up often for larger battery capacity, faster charges, etc. 19v is by far the most common, but that doesn't mean it's right.

What model of laptop do you have?

I have an Acer Extensa 5620-6830. This one : http://www.usereasy.com/product_9781.html

And I bought this cord. http://www.amazon.com/Hewlett-Packard-S ... B001NDKS32.

So....I'm guessing it's not compatible, even though my laptop did charge, I should return the item right...because I don't want to blow any kind of fuse and lose anything.

More info.

http://www.ushopfast.com/products/overv ... DAodqgvhAA

This is a compatible adapter, but I hardly buy anything online, so I didn't get this one.

http://serverfault.com/questions/4287/l ... mps-matter

I trust this, but I'm not sure how voltage and amps works, so from what I hear, it's safe, but what do you guys think.

Actually, I think you'll be ok with what you have. The laptop takes 19v, which is what your HP adapter puts out.