5000mAh Mini Power Bank Small Portable Charger for Heated Vest Jacket Battery Pack for iPhone Samsung Cell Phone with Dual USB Output, Lightweight Rechargeable Power Pack 5V 2.1A for Travel

Very compact- charge quickly Last over 1/2 hour Work great for lower lumbar back muscle spasm pain ( not for cell phone charging)

Works great and small.

It holds a charge well

You can only get one charge off of them not worth the money

I purchased these for heating jacket and although it works as intended, Once charged and connected, the batteries don’t last very long but but it’s enough to get you from point a to point B. I’m not sure if I would purchase the specific ones again, but there is a possibility

For the size the battery life was great.

I use this battery pack for my portable heated stuffy fox also boughten on amizon it charges well has a long life and heats my plushy very well I’m thinking I might get another one because it’s a great size and an even better price

These little boxes work great for my heated apparel. They are so light weight! However, I do work outside on a farm so I have to switch them out as they die quickly having the apparel on "high" during negative temps. Highly recommend though.

The packet and batteries are good - 100%. The delivery was terrible, left on a front porch almost in the rain and no attempt to hide from walkers by our property.

Extra batterij voor gsm altijd op zak.

Good power bank

Buena capacidad de carga y eficiente para el uso que se le dió

Great item, was purchased for a heated gillet, previously bought a different model/make and it never worked. Purchsed this little gem and it works a treat. So lightweight and compact. Charges very quickly and last for hours/days. Charges my samsung phone great. If you are thinking of purchasing for travel/hiking/work (i work on a building site with no power) then i would highly recommend this. Even comes with a 12 month guarantee.