Have you ever seen a heated hoodie?
I've never seen one before, although I could see the appeal! They seem like they'd be a great way to stay warm when you're doing outside activities! 
They are great. they have LED heat strips inside them that keep you warm. they also make heated pants, socks, and gloves.  
LED heat strips are so hot right now! They're really efficient, meaning they need a smaller battery, which must help when putting them in clothing!
The battery is a little bigger than I'd like it to be, and I wish it lasted a little longer. but I still love the hoodie. 
Well, you'll be glad to hear that companies are always looking for ways to make smaller, better batteries! Who knows, maybe in a months time you'll. be able to swap the battery for a smaller, more powerful one? It would be cool if the battery charged from the motion of you walking, that way it would never run out !
That's an interesting idea. my battery does have the ability to charge my phone though. 
Oh wow, is that through a USB connector? That must be handy for when you're on the go. Super warm with a fully charged phone, very cool :) 
Yes, it has a USB connector on it. I just need to get extra batteries and then I can wear it all day and just switch batteries out when it's drained. 
Is it a rechargeable battery pack? Make sure you use one that's recommenced by the brand to make sure you get to enjoy your awesome heated hoodie for as long as possible! How did you decide which hoody to buy? Was there much choice ?