80000mAh High Capacity PD 30W Power Bank Fast Charging 22.5W Portable USB C Battery Packs with 5 Outputs & LCD Display Battery Bank for iPhone, Samsung, iPad ,Macbook & Outdoors Camping (GREEN)

Takes 2 full days to charge, but this power bank lasts a long time once it's charged.

I like the capacity on this, will charge a phone in a couple of hours average, a bit longer for tablets. Charges laptops very slowly though...but I do like the fact you can use this charger numerous times before recharging. However, as some commenters have noted it takes a long time to recharge...almost 24 hours from about 10% to 100% but I guess that's the tradeoff for the long usage capacity.

Works better than expected...I initially bought this to be able to use my dash cam for parking because my car battery was going bad.I was able to run the dash cam for 2 days with this, which is helpful because I don't drive that much.The unit is heavy, it's a beast and it works better than I'd expected and while I didn't and shouldn't be spending the money, I chose to keep it because of its performance and quality.

Works great keeping my appliances charged and only needing to top off the charger once a week

Well made and the battery inside is pretty big. It's a heavy bank

Got it yesterday. It had a 70 percent charge. I connected it to a 3 amp usb charger and went to bed. Woke up three hours ago and it was up to 93 percent. Hasn't changed in those three hours. Happy to change review and/or not return it if manufacturer can contact me and tell me if I am doing something wrong. Well blow me down. After a mere 16 hours of charging we finally got from 70 to 100 percent, so I upped the stars from two to four. It does seem like that is too long. I wonder how long it will take to go from 0 to 100?

I purchased this for emergency power outages to charge phones and lights it didn't disappoint me.

Upon a first test it was clocking in around 60.000mAh. On a subsequent test it was less, something under 50k, and later while I was trying to charge my bose Bluetooth speaker I had a capacity to percentage on display that suggested under 40k, and the speaker started acting up like it wouldn’t properly negotiate the PD protocol. Then I was frustrated enough because I bought it for a camping trip for the following day and decided to stop wasting my time troubleshooting and returned it. It has a good build quality and charges at PD 18w and delivers PD 30w as promised though. On the image is the test where 12% charge (from 77 to 89) took only ~7200mAh