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

The build quality and design of the Viyisi is very good for the price and its 30 mAh capacity is not in any way overstated; therefore less than three fully charged Viyisi power-banks equal the same full capacity as my Ecoflow river 2 power station at a lower cost of course. I am also sure it would be easier to ask to recharge these modestly sized power banks in a public outlet than a power station like the Ecoflow if it was required as well. Obviously they don't have the solar and other functionality of a power station such as AC but the new PD and Qualcomm outputs of the Viyisi allowed me to charge my Chromebook really fast almost as quick as using its mains adaptor into my Ecoflow .A really good power bank so far! and probably carry them as additional power to my power station solar setup. Not to bulky size for good extra off grid charge batteries

No experience of power banks previously. Bought this because the battery in my iPad is failing, thought I might strap it to my tablet and use it as a second battery. Actually it’s very heavy, so my plan won’t work. So, it’s reassuringly heavy, takes a long time to charge to 100%, probably because it has a high capacity. I’m sure it’s a good product, just not ideal for my purposes.

This power bank is of exceptional quality and has the capacity to charge multiple phones simultaneously. While it does require a few hours to recharge, this is not a significant inconvenience.The power display is an incredibly useful feature.The only potential drawback is its size, as it is slightly larger than some other power banks. I was so pleased with this power bank that I purchased another one for a family member, who is also very happy with it.In conclusion, this is an excellent power bank, although it is a bit large and heavy.

I recently purchased the VIYISI Power Bank 30000 mAh, and it has been a fantastic addition to my tech gear. The sheer capacity of this power bank is incredible, providing multiple charges for my phone, tablet, and even my earbuds without breaking a sweat. It’s perfect for long trips or when I’m out and about for extended periods.What stands out most is the build quality and functionality. The device feels sturdy and durable, and the multiple USB ports allow me to charge several devices simultaneously without any drop in performance. The fast-charging capability is a huge plus, as it saves me time and gets my devices powered up quickly.The LED display is another thoughtful feature, letting me easily monitor the remaining charge. It’s compact enough to fit in a backpack without feeling bulky, which is impressive for a power bank of this capacity.Overall, the VIYISI Power Bank delivers exactly what it promises: reliable, high-capacity charging on the go. I’m thoroughly impressed and highly recommend it to anyone looking for a dependable power bank!

Bought this and used it once, now it won't charge or charge anything

Bought this to power my heated back support. Does the job fantatstic. Also used it to charge phones and tablets, does these with ease and battery life seems to just keep going. A bit bulky but it has a large capacity.

great thing save my ...bottoms on the trip, fast charging even with not the best charger, very good capacity , bit heavy but it is not the producer's fault m definitely well spend money

It lasts a long time, charging my phone around 6-7 times, so it's good, but one of the USB ports broke inside, so it could not be used, and also the charging is 50/50.