Can I use a 90W Power Adapter instead of the recommended 65W one? - General Hardware - Laptop - Dell Community

Can I use a 90W Power Adapter instead of the recommended 65W one?


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Can I use a 90W Power Adapter instead of the recommended 65W one?

  • Good Evening

    I have an Inspiron 700m laptop.

    My Power adapter has given up the ghost. I'm in Guatemala and asked a friend, who's coming to visit, to purchase one for me in the US.

    He says he has an adapter he's never used and will give it to me.

    Here's the recommended 65-Watt AC adapter on the Dell website:
    According to the Dell website: This product is compatible with the following systems:
    Inspiron 6000
    Inspiron 700m
    Inspiron 710m

    This seems to be the 90-Watt AC adapter he has offered to give me:
    This product is compatible with the following systems:
    Inspiron 1150
    Inspiron 8500
    Inspiron 8600

    The specs appear to be identical, except for two items:
    the recommended adapter lists power provided as 65 Watts with a maximum output current of 3.34 A.

    His adapter provides 90 Watts with a maximum output current of 5.5 A (maximum at 4 sec pulse); 4.5 A (continuous).

    Any thoughts. I would rather buy a new one than damage my laptop.


  • Use only the one recommended for your computer, any other would have the potential of frying your motherboard.
    Inspiron E1505
    Intel Core 2 Duo processor T7200 (4MB/2.00GHz/667MHz)
    15.4 Inch UltraSharp TrueLife Wide-screen WSXGA+
    1GB, DDR2, 533MHz 2 Dimm
    120GB 5400RPM SATA Hard Drive
    8X DVD+/-RW Philips Drive
    Intel PRO/Wireless 3945 802.11a/g Mini Card (54Mbps)
    Dell Wireless 355 Bluetooth Module (2.0 + EDR)
    Windows XP Media Center Edition 2005
    Bios A08
    pur. Sept. 7 2006
    WRT54G Linksys router v3 (DD-WRT v23 SP2 std)
    ZoneAlarm Pro v 6.0.667.000

    Message Edited by dallascowboysworldchamps on 12-05-200605:30 PM


    Own: Dell Chromebook 11, Alienware M11xR2


    Forum Member since 2004

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  • Thank You
  • Hi,
    Check the lable underneath, if you have a PA 12, you can use a PA10.
                                                                        Regards Chris
  • Supporting the comment from (Aussie) Chris. Read the labels, check the output voltage is the same. Your only other consideration is the connector, I don't see any models in both lists you quoted so there's a risk the plug is different (won't fit).

    Don't worry about having a higher power rating than standard you only draw the power demanded by the PC. The rating is the maximum output ability of the PSU before it gets too hot, and it won't matter if you don't need/use the spare capacity. Its a bit like putting an oversize heavy duty battery on your car, it won't harm the electrics.

  • The output voltage is the same, but it's a good point that the lack of crossover on the models may mean the connecter is different. I'm going to play it safe. In the meantime, I've learnt a little about voltages etc.
    Thanks Guys
  • I have a similar question. I have a 710M, which came with a PA 12 AC adaptor. The label underneath the laptop says "use PA 12 famliy AC adaptors."  I ordered a "65 watt PA 12 adaptor on ebay."  The seller sent a a 90watt PA 10 adaptor.
    The specs:
    PA 10 - output of 19.5V, 4.62A, 90W -AC adaptor.
    PA 12 - output of 19.5V, 3.34A, 65W -AC adaptor.
    The connector is the same.
    I called the dell cusomter service, and the guy said that the dell PA10 would damage my battery. However, he then suggested that I buy a 120 Watt Targus universal adaptor, (for $130 from dell) if I wanted an adaptor that fit multiple laptops.
    Is there any possiblity of damaging the laptop or the battery if I use the PA 10 withy my laptop? I really want to use my laptop, but i don't want to ruin the batter or the electrical....
  • Hi,
    The voltage is the same, that is the thing to look for. The higher wattage, means more power. As the computer can tell what adapter is plugged in, you wont overload and overheat a small adapter with a big computer. If you use a Dock, you computer will ask for the bigger adapter.
                                                                                Regards Chris