I only use USB Cables. Very convenient to carry less stuff since I used to travel a lot. Bought mine from Amazon a looong time ago - this is the link to the exact cable I bought: https://www.amazon.com/gp/product/B0071BJK34/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Haven't had any problems.
As a general rule, it's handy to have a USB charger anyways, and go with the biggest mAh you can afford. I've got one that holds 7800 and can charge two devices at once. The 3DS has a 1300mAh capacity, so that battery charger you listed will get you about two full charges, but like any other battery the effectiveness will decrease as time goes on. As for the cable, I bought the $3 one off Amazon such as this one
by purchasing an external battery charger, you can charge up your tablet, phone, 3DS, ipod, or whatever USB-powered device you need without having to carry around too much extra equipment
Thanks for your suggestion but I was trying to find just the cable itself. I saw this http://www.amazon.com/dp/B0071BJK34/ref=wl_it_dp_o_pd_nS_ttl?_encoding=UTF8&colid=22RTSQZUTX0L3&coliid=I2BN6BF9YI1G5S on Amazon and am wondering if anyone has had any experience with cables of this sort?
Yeah, Nintendo is cheap and their adapters. I have hundreds of adapters, and the one for my 3DS is the only one that doesn't accept multiple input voltages.
I don't use the charger anymore, though. I use a USB Cable. You can get them on Amazon: http://www.amazon.com/Gator-Crunch-Charge-Cable-Nintendo/dp/B0071BJK34/ref=sr_1_4?ie=UTF8&qid=1378726136&sr=8-4&keywords=3ds+charger
Works perfectly. I'm surprised Nintendo doesn't sell them.
even if it isnt a standardized port someone will make an adapter in a matter of weeks.
Cables and adapters like these appeared in less than a month when the 3ds first launched.
Or pray that your plane has power outlets in the seats.
You could just get a USB to 3ds charger so you can plug it into any USB brick/Computer.
Something similar to: https://amazon.com/dp/B0071BJK34/
(I know this is USA's Amazon, but search for something with the key words "3ds usb charger")
Went on Amazon and found this
It should work
They have those? Any you recommend? Found this, http://www.amazon.com/Gator-Crunch-Nintendo-Lifetime-Packaging/dp/B0071BJK34/ref=sr_1_cc_5?s=aps&ie=UTF8&qid=1459778656&sr=1-5-catcorr&keywords=n3ds+usb+charger
This is the one that I have: http://smile.amazon.com/gp/product/B0071BJK34?psc=1&redirect=true&ref_=oh_aui_detailpage_o07_s00
I have this one and it works great.
I found this was a pretty nice video.
As far as a battery pack: I personally wouldn't recommend one. They're overpriced. For around the same price you can get a USB>3DS charger cable and buy a much larger battery bank instead. This one in particular comes to mind. You can also use this for other devices, and not have to worry about the extra bulk so you can use a protective case or grip. :)
Edit: Here is a mugen power pack for comparison.
I just bought the this GatorCrunch cable off Amazon. Don't have it yet, so I can't report on quality. But the reviews were good and the price was right. http://www.amazon.com/dp/B0071BJK34
USB Charger: http://www.amazon.com/Gator-Crunch-Charge-Cable-Nintendo/dp/B0071BJK34