With an average capacity of built-in 3000-6000 mAh batteries, the average use time of a laptop does not exceed 3-5 hours.
A good power bank will increase this time by at least three times, allowing you to work on a laptop even in the absence of electricity for several days. In order to understand which model is best to buy, you should consider several important factors, from capacity to functionality and price. And we are going to do this for you right now!
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1. PowerPlant K2 50000: the most powerful powerbank
The most powerful power bank is the PowerPlant K2 50000. This battery is able to charge the batteries of about ten laptops and 15 average tablets. There is a built-in protection against short circuits, from spontaneous discharge, and from overheating.
2. KS-303: the best option for solar energy
KS-303 can be charged by electricity and by a solar panel. This increases the capacity of 20,000 mAh. The additional features include the protection of connectors from moisture and a rubberized case.
3. Defender ExtraLife Maxi: the most functional in the budget segment
Maxi does not only have a huge capacity (30000 mAh) but also 4 USB slots (for example, for charging a laptop, 2 smartphones and a tablet).
4. Xiaomi Mi Power Bank 20000: the most compact
Its dimensions are only 14 × 7 cm, and the weight does not exceed 338 grams. At the same time, the battery can charge up to 2 devices simultaneously and is moderately priced. The peculiarity of its use is the output current of 3.6A, that enables using the laptop during its charging.
5. Drobak Alum-20000: the best price-performance ratio
A small, but powerful Alum-20000 allows you to charge 2 devices at the same time and has a charge indicator. The only drawbacks are a small current (2.1 A) and a long charging time from the electricity. As a result, it’s not possible to work on the laptop during the charging, and it will take up to 14 hours to fully restore the device’s capabilities.
When choosing an external battery for a laptop, please pay attention that most models do not allow you to use your laptop while charging. However, such models do exist – for example, Xiaomi Mi Powerbank 20000.
Article: Top 5 power banks for laptops in different categories
