Nintendo switch is charging insanely slow

How long did you leave it charging? Switches will slow charge (around .40-.47 or so) for a long time sometimes. I've seen them slow charge for hours. That's what I would try first...just leave it charging overnight.

I have had luck in the past with replacing the battery in this exact situation, although sometimes even a battery doesn’t seem to work. These power issues are super common on the Switch and it sounds like you’ve ruled out the other most likely causes (the USB-C port and the charging ICs). If a new battery doesn’t work try asking @tronicsfix if he has come across anything new. Good luck!

"My son’s switch had a black screen after sitting idle for a month while he was away during summer break. It would not take a charge, or so it seemed, but the LCD light turned on and off when we docked the console.

I checked all the obvious solutions and read solutions to the above posted question. Then followed the link to Nintendo’s website hoping to read about a recall all to no avail.

Fortunately, I read an article about the “console not charging, a black screen and won’t wake up from sleep mode”. D’uh

It froze in sleep mode, the battery died and a proper reboot solved the problem. Which is holding down the power button for 12 seconds along with a couple other omfg that’s so simple solutions! And then I’m the ifixit goddess until I explained the problem and hard restart solution

See for your self…

https://en-americas-support.nintendo.com..."

it is normal it is because I have a brand new switch I got it like 1 day ago and it still charges slow because the battery is very big and things like those batteries need more energy then normal batteries example big batteries takes up more energy then normal sized batteries while on the other hand normal sized batteries takes less of the energy then a big sized batteries it takes less time to charge than big batteries.