Was never close to 4500 mAh. Probably more like 1200 mAh. Gave one 80% charge at most. It worked for about ten days then wouldn't take a charge. Actually drained my iPhone battery twice while I thought it was charging overnight. When it did work I had to charge the phone and battery pack separately. MADE IN CHINA. I should have known better. Headphone jack very slim. None of my headphones could plug in. Waste of time. Waste of money.
GARBAGE - Amazon should ban it.