The Asus T100 can be charged from a microusb port, meaning no extra psu & accessories to lag around.

Any first hand experience if this setup works well? How long does it to fully charge it?

Anyone aware of additional models ehich charge from a usb?

TIA

I have a T100. It does take a while to charge, around 4-5 hours I'd say from virtually dead with the asus charger and cable. Also it's a bit picky on aftermarket chargers & cables, the wrong combo can drop the charge rate to the default usb 500mA, which would take many hours more to charge (that charge rate will not even charge the machine if you are using it, it will barely keep level or even drop slightly if you are using it hard).

I've found that with a dedicated charge only USB cable and a good 2+ amp usb charger, it will charge roughly as fast as the asus charger. I use a iXCC dual port 4.2 amp model as my travel charger.

And if the battery gets low enough, charging at often 500mA won't work at all.

To clarify the above quote, if it's only pulling 500mA while it's off, it'll take a very long time to charge. If you have it powered on at all and it's only pulling 500mA, it will lose charge faster than it takes it.

^

OP - if your question is about charging from a USB port on another machine, it's tough to give an exact answer. Some USB ports let the device pull the power it needs. Others limit to 500mA (since that's what the spec says to do).

Thanks for the replies.

So usb charging is only practical if I bring along a high amp charger (more than 0.5A)?

Yes. The charger that comes with the tablet will be pretty small, so good for travel. And when it's not charging the tablet, you could use it to charge a phone or something else. Or if you phone has a higher power charger, just bring that one and use it with the tablet.

Also following mt initial post, the only other laptop I've found which supports usb charging is hp chromebook, but its an ARM machine & not intel which means linux/wibdows cant be easily installed.

any other models?

On the Windows side, I would expect most if not all of the latest 8" tablets to all charge via USB. I own the Dell Venue 8 Pro, and it comes with a USB charger. My understanding is the Lenovo Miix 8 does as well.

(Full disclosure: I work @ Microsoft)

Tnx but I'm asking about laptops which charge via a usb.

The HP 11" Chromebook charges off MicroUSB. Very small charger, and can charge off anything over 2.1A - so all iPAd chargers will also work. But, it is still a Chromebook, and not a "full" laptop.

Ah, sorry. Most OEM's have made devices similar to the T100. They are typically referred to as "2 in 1"'s, because they can either be used as tablets or as a laptop.

I don't have a suggestion of any specific models. You will not find a full blown Windows laptop, like with an i3/i5/i7 core CPU that charges via USB.

Future plans to charge from USB (though it would require a new USB charger, and the initial ones won't be cheap):
http://www.dvice.com/2013-12-6/new-p...ng-laptops-usb

Agree, but the asus runs on intel atom so windows & linux will work. It wont matxh an i3-7 machine but on the road I dont need that processing power anyway.

The hp is an arm chipset, so its a chrome only machine.

When you do pick a machine, please make sure to come back here & tell folks what you thought of it.

A bit more info on my T100 since I didn't include it in the initial post. Generally I'm pretty happy with it. The screen is pretty good, although there are a couple of spots of back-light leakage along the top. I've setup 5 more for clients, and mine is the worst, so I think I just got unlucky. Battery life is pretty good at 6 hours or so, although I crank the brightness all the way up which limits it a bit, it is dim when operating on battery by default. I think most people get more life, but my use is for short periods, so I'm not going to strain my eyes for no reason.

My cons are the screen angle. The hinge just doesn't go back far enough to use it comfortably (for long periods of time anyway) when sitting. I find myself hunching over the thing a little. The 2nd is the touchpad, it falls asleep so it's a bit slow on the first touch, and maybe just my use, but when I go to left click something about 6/10 times it moves the mouse to the bottom left corner and clicks the start button instead of what i was wanting to click on. Might need to tweak settings a bit to combat that.

All in all, I'm happy with it, it fits my need, which is a small yet reasonably powerful machine to travel with or run into a client office to do a little work. I wouldn't want it as a full time machine, I have a regular laptop for that, but for its purpose it's fine.

The HP ThinkPad Tablet 2 and the Fujitsu Q584 both can charge via USB. The TP has a very good keyboard, though it is not a true clamshell. It is being replaced by the TP Tablet 10, so it is a particularly good deal as low as $300 US if your needs are modest. We expect our first TP 10s in about 2 weeks, they do have a MS Surface like touch folio, but seem to use a non USB charger.

The Q584 does have an available clamshell keyboard, and it uses the newer quad core Baytrail Atom, spec'd with 4GB of ram it is pretty capable performer. IT has a proprietary charger but does also charge via USB.

Charging via USB as others have said is perfectly fine overnight, but don't expect 15 minutes between meetings on someone's phone charger to get you much.

Not a true laptop, but close with the battery keyboard dock, the Dell Venue 11 Pro tablet charges off a micro USB port but the AC adapter is not a typical USB one at 24w. I haven't been able to get the tablet to charge off a, say, smartphone charger. I have an i5 model.