9-8-21 - I purchased this power bank in September of 21 and I've got to say that it blew me away. I'd actually purchased a few different power banks because I have to have a charger when I need it and it's got to have a charge on itself. It's so strong and the battery life is so long it made all others obsolete. I normally carry at least 2-3 with me when I travel but that's no longer the case. I suspect that there are a lot out there who misrepresent the charging capacity of their units however if I had to guess I'd say this one was under represented in the stats. I use it quite often and I've never been disappointed. It doesn't matter if I'm charging my phone, iPad Pro 11 2021 model or any number of other devices this unit will charge them quickly and will have plenty of reserve for the next item. I'm not sure how often I've got to charge the power bank because it's not as often as I have had to do with every single other power bank I've ever owned. This item is way better than I could have expected. I will note: at first I was going to return this power bank. It’s thin for the MaH size but look at length and width. It’s HUGE. Too big for a pocket, and too heavy for one. They just took something that was thicker and spread it out over a bigger are. After using this charger for a week however I really liked how fast the usb-c port charges my devices.3-25-22 After 6 months I've got a slight issue with the power bank. When it's charging I have to keep it completely still or the charge circuit will not continue. I've tried this with multiple cables that do not have the same issue with other chargers. It's mostly on the USB-C port but that's the one I use probably 95% of the time. At least the vast majority of the time anyway. I've sent a message to the seller asking about warranty and included the above pictures so they can see the item isn't abused. I'm confident they will help me get this fixed as this power bank is such high quality. I'll update the post after I hear from them. For now I still place this a strong 5 and would highly recommend. In fact I'm considering a second purchase so I've got a backup should anything ever happen again.5/7/22 Working with the companies support it was determined that the product needed replacement. They issued a code that credited the full amount towards a new one. The price had gone up $0.42. I’d imagine if I’d asked they would have fixed that also but it was worth the extra and they ended up being really good about everything. I would not hesitate to purchase another Charmast and in fact am purchasing another. I’ve used all brands of power banks. From no names to the biggest names and I’ve never found one that works this well. One reminder in case you don’t check the specs. This is super thin but it’s a bit larger in size. Way lighter than the other brand of power bank I own with similar MaH. Quit researching and buy this power bank. You won’t be disappointed. Thank you Charmast team for the great help and customer service.Update 2-17-23 approaching the one year mark after the replacement power bank was purchased and its working as good as the day I purchased it back on 5-7-22. I’m so pleased to have made this purchase and now have a second one that I use as well. Awesome productUpdate 4-5-24 still looks and works as if it were brand new. This unit has held up to drops, being stepped on and stuffed in a bag that's way to full and it just keeps working flawlessly.