High quality that's built to last and keep you warm too!
So they packed a bunch of nice touches into this jacket.First off, my wife says she likes it even without the battery heating this thing up. So it's just nice to start with. The sleeves have a velcro strap to tighten them up to keep out the wind. The battery has a LED read out of the batter power level, see photo that says 76.You charge the battery with usb "C" and then plug it in on the lower left side. you can see in the photos where it goes. Just a few clicks gets the jacket heated up nicely and for a long time.This would be good for a day out on the boat as it would keep you warm. Or anyplace that's cold for that matter...7.4 amp and 5000 milliamperes hours mAH batteryA milliampere hour (mAh) is 1000th of an ampere hour ( Ah ). Both measures are commonly used to describe the energy charge that a battery will hold and how long a device will run before the battery needs rechargingThanks to Dr. Science for that lesson.Anyway, you can find some higher mAH batteries but it's not that common. If you look, lots of other jackets only have 2000 mAH so this is better, longer lastingOverall this is a nice warm jacket that you might enjoy on a cold night out.