Duracell DRAC90S Slim Universal Laptop Adapter, 19V, 90-Watt

Good:It's quite a bit smaller and lighter than a standard 90w power brick, but not Finsix Dart awe-inspiringly small.Measured voltage is very close to specified at 18.94V on 240V here, and it's 110/220/240V compatible, which is the most important thing - it will work anywhere and won't hurt a 19V laptop.Doesn't get as hot as the standard Acer brick.I personally really like that the AC side cable to brick plug is a small style universal, non-earthed connector common to many home appliancesThese connectors are smaller and lighter weight than a normal power brick/PC connector but should still be freely available anywhere so you can get one with integrated two prong plug and won't have to use a plug adapter if you can't use the supplied US two-prong. Here in South Africa a 2 prong wall plug also represents a huge size and weight saving over our earthed 3-prong version. I'm a power cable hoarder and had a spare South African version lying around that fitted the brick perfecly.The OK:Construction quality seems good- plastic, not particularly premium feeling, but certainly no worse than a normal laptop power brick. Large front and back faces are matte and shoudn't show the scars of travel too easily.The not so good, but not really terrible either:The push to fit together tips connect well and securely, and fit my Acer laptop properly - when brand new at least - I've only been using it for a few hours. I think if you were regularly swopping tips for different laptops the power cable to tip connection might become loose as it's only a push fit - there's nothing locking the tip to the cable end securely. The tips are pretty bulky/plasticky/cheap feeling - but this is sadly the standard for interchangeable tips.The Supplied unit has power cable exiting brick perpendicular to surface, not right angle version as shown here, which is a pity as the right angle design usually works well to prevent cable fatiguing and breaking, especially important for a travel-oriented device which will get stuffed in bags. The brick is sealed so a broken DC side cable would mean the end or hacking it apart to fix - this is probably the main reason I've given 4 stars not 5.

This is the second one of these I've purchased for my Dell Vostro, to replace the one my wife stole for her HP laptop. The tips have a solid connection onto the supply wire, and fit their appropriate computers as well as OEM. Having multiple tips is a nice feature that sort of future-proofs the power adapter. The power appears clean (doesn't cause video screen ripples on the external monitor as did another brand) and supplies enough amperage to not get the "battery not charging" message. The block does get warm under load, but so does the Dell original.

It is working satisfactorily with my Asus laptop. But none of the supplied laptop charging tips is matching with my Dell XPS 13 laptop having a smaller charging port.

Perfect.