If you need to buy a power bank, but one of your priorities is that it takes up very little space in your pocket, bag or luggage case, then you are looking for a Slim Power bank or an Ultra Slim Power Bank.
The ideal would be to carry a portable battery of dimensions and thickness similar to our mobile so that its great utility does not become, rather, a nuisance.
For this reason, we have analyzed the market for external batteries in search of models with a more compact design .
What is an Ultra Slim Power bank?
Probably, the abbreviation for lithium polymer -Lipo- sounds, especially since today’s mobiles use this type of batteries.
Lithium Polymer (LiPo) batteries are safer, more compact and efficient, and are capable of storing more energy in less space than conventional Lithium-ion (Li-ion) batteries.
Although 18650 type Li-ion batteries are still used in power banks, they are more often found in small-capacity, cylindrical-shaped models.
Instead, many manufacturers now use lithium polymer batteries, obtaining power banks of greater capacity and less thickness.
The more that you read, the more things you will know…
- Anker Power Banks – Discover Anker external batteries
How have we classified them?
Following the use of lithium polymer batteries, the Slim Power Bank concept arises.
As the term itself indicates, an Ultra Slim power bank is a portable battery whose main characteristic is to be extremely thin .
Of course, keep in mind that the concept of Ultra Slim does not imply that it is light, that is: the weight of the power bank will depend on the capacity of its battery , although they will always be less heavy than power banks with Li-ion batteries .
After having analyzed many models on Amazon, we established a criterion to classify if a power bank was Ultra Slim based on its capacity-thickness ratio :
- 13000 – 20000 mAh : <= 15mm
- 6000 mAh – 13000 mAh : <= 13 mm
- 5000 mAh or less : <= 10mm
In addition, we concluded that the Ultra Slim power banks with 5000 mAh turn out to be the most practical to carry in your pants pocket due to their light weight and dimensions.
These models, along with those of 10,000 mAh , stood out for being similar in thickness and size to a 5 ″ or 6 ″ smartphone. However, the 20,000 mAh power banks may be too heavy to carry.
However, everything will depend on the use that you are going to give to an Ultra Slim power bank: for daily use or for trips, for example, if you are going on a trip you may be more interested in carrying a power bank of greater capacity and that bulks little in the backpack or suitcase.
Based on our selection criteria and taking into account the weight and size of the power banks, we have selected the best Ultra Slim models that you can find on Amazon:
Last update on 2021-01-19 / Affiliate links / Images from Amazon Product Advertising API