Taken together, I think mobile power banks from Pinsheng, Xiaomi, and Romas are better, safe, cheap, have sufficient power, and are very cost-effective.

Mobile power supply is a necessary thing in life. As a student, you can carry a mobile power bank with you when playing games or when your phone is out of battery. Convenient and better charging to complete their studies and entertainment. And when in a meeting, the phone suddenly runs out of battery and needs to be charged urgently. You can use mobile power supply. Then let me recommend which mobile power supply is better.

I have used many brands of power banks. For example: Pinsheng, Xiaomi, Romans. These mobile power supplies, I think these mobile power supplies have their own different advantages.

Pinsheng I can say that it is a very good mobile power supply. I still remember the one I just bought from Pinsheng. I charged it five times a week and still had 55% left. Its battery charging will not damage the mobile phone at all. Extremely fast charging. Can also be used on airplanes. This advantage is what many friends who fly on the plane need most.

The second thing to introduce is Xiaomi mobile power supply. Xiaomi mobile power bank is very small and made of baking paint. Xiaomi power bank is made for traveling. It can be said that although Xiaomi power supply is small in size, it contains very sufficient power.

Thirdly, I would like to recommend Romans, this mobile power supply. This is a mobile power bank that I used when I was very young.

Its large capacity is enough for me to charge for a whole day. Although it is not large in size, its capacity and charging capacity are very high. The response was prompt. It can be said to be extremely light if you put it in your bag every day. The appearance is also generous.

The mobile data I recommended above can be said to be what I have used myself and give you feedback. It can be said that each mobile data model has their own advantages and disadvantages. The ones I recommend above are all ones that I think are very good.