VIYISI Power Bank 30000 mAh 22.5W Fast Charging Battery Pack USB C Portable Charger with 4 Outputs & 3 Inputs for Samsung iPhone iPad Android PhonesCarbonfree Certified

Best portable charger I've ever had.Bit of weight but nothing insane, bit big but again nothing insane. Neat little screen, and very durable. I've had this charger for a year or so now and it's had decent use and I'm pretty rough with my electronics and other than a couple scratches from dropping it a couple times it's still ok.Super fast charging (with red usb) has 3 ports, 2 blue and one red, and all three types of charging ports to charge itself as shown in picture. Battery life is really good, went on holiday for a weekend and only used 20%!!I've had alot of portable chargers in my time, and for this price I'd buy this again if I needed!Mine went down to 21% as shown in the image, and that's after I went away for a week in May and haven't needed to charge it since, and during that trip I probably used it for 24+ hours.I don't often write reviews unless I'm super impressed.

Why did you choose this product over others?:Hefty battery life as advertised. Really good value for money. This with another similar product lasted me all of a 5 day music festival.Battery life:Plenty of charges of my phone and vape. Very impressive for the price point

Fantastic power bank and great value for money. Took a long time to fully charge but did expect that. Managed to charge my devices for the second half of a festival and still came home with it half full. Quite heavy so not ideal for carrying around.

Excellent at powering up various bits of kit. It will take a while to charge up, as can be expected with such a powerful device. It packs a lot of juice!Do be aware that it is around 3 times heavier than a lesser 10000mA model. (300g seems to equate to10000mA in most brands.)It's solidly built, has all the ports you're likely to need and charges up your devices at a good pace. Recommended.

UPDATEAfter my review the company contacted me and arranged for me to receive another unit, which is working fine. I'm really impressed by their customer service, and the second unit I received is working absolutely fine. In fact it's better than most as you can charge multiple items simultaneously on the go. I'm a travel writer so that's quite useful at coffee stops etc. So, if anyone else has problems with theirs, let them know. Hopefully mine was a one off, but their customer service is responsive.Avoid. I have several power banks and this is the worst. Only had it working once giving about a phone's worth of charge. Takes hours and hours to recharge and now its not working at all. Sadly I gave it another go by trying to charge it and it took me out of the return window! Going to have to bin it and get a different one.

It starts off as an amazing power bank, bulky and heavy, but that's a necessity doing a 3-5 day expedition where there's no chance of a plug socket. Charged my Sony Xperia V10 fully 4 times on one charge. Was brilliant when it was working. It was purchased in May, it's been out twice into the mountains and now it won't charge past 10%. This is the battery packs 3rd charge it's broken on. So if you want a battery pack which last more than 2 months, I'd buy a different one.

Why did you choose this product over others?:This powerbank is amazing! It's heavy... but its quality and keeps all your devices fully charged.You don't need to worry about dead phone/device battery with this!

I haven’t used it yet, just unboxed and started to charge as per the instructions.I must say it’s been 2 hours and only 9% has gone on from the 80% it had. It could be the plug, but I’ve noticed a review saying this is slow to charge and they’re not kidding. I just hope it holds the charge well!!!