Same battery technology, same or similar charging cycles and voltage regulation.  Even if the charger is plugged into a surge protector (and I'll bet yours isn't) I would only worry about it being plugged in during stormy weather.

Yes, what Wizard said...

There is a limit on how many times you can charge it. Ideally you want to fully discharge the battery (let your device die or 1%) then fully charge it for maximum battery life. Also not tablet related but Apple had reports of some of their iPhones 6s fatally electrocuting people...

I own a car that is powered by the same cells that are likely to be in your laptop battery. Literally. The best strategy for battery longevity in these cells is to charge to 90% and never fully discharge the cells. They like being in the 20-80% range. Now, given that isn't all that possible, you are better off charging to 100 than fully discharging. My vehicle manufacturer suggests keeping it plugged in when not in use (though the car has a lot of battery management your tablet probably doesn't have that lets you set the max state of charge, when to start charging, and will not try to charge unless needed.)

Bottom line: My understanding is with lithium ion you are likely to replace/upgrade the device before charge cycles become a problem if you keep it plugged in unless "on the road."

A Tesla?

If I had the coin I'd get one of those....

One went toasty just last week, I think.  Getting fire insurance on them is a bitch, but if you've got the coin for one, you probably don't need the insurance.

Haha thanks

Jim..

Don't give it a second thought. Just plug 'er in!

Just wait 2 years and get a magnetic resonance charger. It'll be all the rage.

http://www.idt.com/products/power-management/wireless-power-transmitter-and-receiver-solutions/wireless-power-magnetic-resonance

All cars can have fires as Jafo pointed out. But how many warn the driver to pull over and stop before the fire is even apparent? That Tesla that you saw burning did exactly that.

And getting insurance for them isn't hard, in fact I was surprised at how little I had to pay for it. (It was entirely consistent with the rates for any comparably priced gas or diesel engine vehicle.)

Sorry for the semi-hijack of the thread, it is why I didn't mention the car make in my initial reply

Don't get me wrong.  There are two Tesla's in my neck of the woods, one white, one black.  They are suhWEEET!  If I had the jack, I'd seriously think about one, but my current wet dream is an Audi 8.

Well...we've wandered off-topic...but so has RND...

Every car I have ever owned FIRST gets one specific 'extra' - an extinguisher.  Best place for it is just infront of the driver's seat...on the floor - accessible in an instant.

Reason I do so is the 38 years in the Motor Racing game.  You get to see quite a few BBQs in that time.  Most recent one I saw [on telly] was Webber's Red Bull.  It fried itself quite well....thanks to somewhat 'tardy' response from the officials [Korea is relatively new to the game of F1 - frustrating thing is many of them were trained by us in the Aussie GP].

A great annecdote was in Adelaide when those yellow extinguishers were being universally outlawed [BCF] thanks to them affecting the ozone layer.  We were still allowed to use them - IF the situation was life threatening....so Ron Dennis told Senna to stay IN the car if it lit up...so the BCF would be used....instead of Dry Chem or Foam ...as both of those can ruin an engine requiring a full rebuild....

Of course...it's just one-of-those-things that the 'outlawed' extinguisher would probably be the BEST one to use on a Tesla fire.  It's 100% inert [you can breathe it [but not too long! -it's an oxygen displacer] and non-conductive...