For all my Switch owners please purchase this got minds today adds substantial amount of battery life when your on the Go! And if you play Splatoon 2 as much as I do you will need this great buy for a great price
Using portable batteries why a system is in use actually kills the internal battery of the system same goes for any phone or device that uses a lithium ion battery.
You can buy a more powerful bank cheaper that this. Since I mostly play in handheld mode I don't mind having the cable there but if this thing really only has 6500 mAh I wouldn't buy it. I was able to play over long stretches of time powering 2 switches with my 22400 mAh Powerbank and it was cheaper than this...