Would this adapter work on my Gateway??

First time post here!

My dog chewed thru the cord on my Gateway adapter, and I have an old HP adapter handy. Would it work? Here are the specs:

DEAD ADAPTER:
MODEL: LITEON PA-1650-02
INPUT: 100 -240V ~ 1.6A
OUTPUT: 19V 4.42A

POSSIBLE REPLACEMENT:
MODEL: HP F1454A
INPUT: 100-240V ~ 1.8A
OUTPUT: 19V 3.16A

Output voltage and polarity are identical (a good thing) but the possible replacement has a slightly lower output. The bottom of the computer says input should be 19V 3.42A or 19V 4.74A.

I ordered a generic replacement on Ebay, but it came in DOA today, so I'm antsy to get back on the computer. Will this lower-powered adapter cause harm until I get the proper adapter?

Thanks!!

 

i would not recommend that. you should read the threads on prolonging battery life and duration.

 

Thanks for the response, coRe 2!

My specific concern is that I've read on the forum that if the voltage is the same but the amperage is higher on the replacement there should be no worries, as your computer will only draw what it needs... this scenario is the opposite- the amperage is a tad lower on the replacement adapter.

I agree that it's probably better safe than sorry, but just wondered if I was being over cautious.

 

The lower powered PSU is probably OK provided (i) the plug fits and the polarity is the same and (ii) you don't recharge the battery while using it; and (iii) you avoid any gaming.

John

 

Hmm... polarity is OK, gaming is not an issue, but I hadn't thought of the charging while using issue! Good point!

I've (hopefully) rendered the question somewhat academic by ordering another adapter that should be here in a few days. In the meantime, if I absolutely must get the laptop working, I think I'll plug in the HP while the computer is off, let it charge for an hour or so, unplug the HP adapter, then power up.

Thanks, John!

 

FWIW worrying about charging the battery is a totally moot point as the battery recharging circuit won't require anywhere near as much power as just running the laptop will.

Remember that the power adapter's power output in measured in watts which is the product of the adapter's output voltage multiplied by its output current so the difference between the old adapter (84W output) and the new adapter (60W output) is fairly significant as the new adapter can only deliver up to 75% of the power the old one could.

 

Wow! Did not know that!

So should putting a charge on it using the weaker adapter when the unit is turned off be OK? I don't think I want to try using it when the computer is actively running as it might damage the adapter or the computer.

 

Yes, the new interim adapter should work fine at just recharging the battery with the laptop turned off.

 

The PSU is usually rated for the worst case condition of computer under full load + recharging the battery. An average notebook with integrated GPU only needs around 25W when under light load. Just avoid full load + battery recharge together. Depending on CPU the power drain can increase from ~10W to ~30W between light load and full load.

John

 

Success!

Incidentally, I had a type on the amperage on the original (it was 3.42, not 4.42). The HP adapter worked fine for a couple of days- then my replacement came in and I'm back in biz!!

Thanks to all!!!!