Mobile batteries are a reassuring companion when you run out of charge for your smartphone or tablet while you are out.

You can compare them at electronics stores, but honestly speaking, there are so many products on the market that it’s hard to know what to look for first.

Now, BENEPRESS editorial team has carefully selected the best mobile batteries for you.

Criteria : Size and capacity


It is said that the larger the capacity of a mobile battery, the larger and heavier the device. You need a pocket-sized battery if you want to carry it around with you for daily use. You need a large one if you want to charge your tablet outdoors without fail, such as for outdoor field work, or if you are a candidate for disaster prevention goods.

In this article, we will introduce the criteria for selection in order of size to make it easier to understand. Why don’t you choose the size that suits your purpose and can be used for a long time?

For daily use : 5,000mAh

The smallest and lightest pocket type released by the leading anchor of the mobile battery.

It has a sophisticated design and is palm-sized at 10cm high and 3cm wide. It is recommended as an item that you always carry around in your bag.

For business trips & weekend getaways : 10,000mAh

This is the standard Anchor model.

With a capacity of 10,000 mAh, it has the specs to charge the latest smartphones more than twice, and with its thin 1.4 mm shape, it has the convenience of being able to carry a smartphone on top of it while charging it.

It’s a slim mobile battery that fits in your pocket with fast charging.

For field works & disaster preventions : 20,000mAh

This ultra-high capacity model can charge two devices at the same time, allowing you to fully charge an iPhone four times or an iPad Pro more than twice.

It has two USB ports, and Anker’s proprietary PowerIQ and VoltageBoost technologies provide optimal charging speed for most USB devices. If you are working outdoors and can’t run out of battery power for your tablet, or if you have a disaster preparedness battery on hand, you can rest assured that it will be ready in case of an emergency.