When searching for the best 20000mAh power bank there are a couple of important points to consider other than the actual capacity of the battery pack. This really upon your portable charging needs. If you have to charge a few mobile, laptop, tablets or iPads at the same time, at that point the best 20000mAh power bank will be the one with the greatest max output. If you need to limit the recharge time, at that point a fast charge 3.0 power bank of an appropriate QC 3.0 wall connector would be the better choice. If you require some help seeing more about the specifications and features found on high capacity power banks, there’s a short information at the bottom of the post.
- Capacity – Measured in mAh’s (milliampere-hour) is essentially the measure of capacity the power bank has. This amount is only a guide, the actual amount the battery conveys is reliant on its effectiveness. This can be somewhere from 70%-85%. If you are charging a cell phone with a battery size of 2000mAh with a 20000mAh power bank, you’d get ten full charges if it was 100% effective (this will never happen). In reality, you are much more prone to get 7-8 charges.
- Pass-through charge technology – This enables you to connect gadgets to the power bank as it’s being recharged. On high limit power banks, this component is amazingly helpful and not regularly observed.
- Max Output – This alludes to the general yield of the power bank. Normally more important on a high limit portable charger, while energizing various gadgets in the meantime. In the event that your Smartphone requires 1A and your tablet requires 2.1A then a power save money with a 3.1A Max yield would be adequate. On the off chance that you were then to connect to the third gadget, the 3.1A would be shared, and the energizing time would take longer.
- Additional Technology – Each power bank will have its own terminology, Anker call theirs ‘PowerIQ‘, RAVPower utilize the name ‘iSmart‘, Zendure has ‘Zen+‘ and the rundown goes on. There are few factors depending on the maker, yet as a rule, this relates to an adaptable output from each USB port. When you plug in gadgets, the power bank will identify it’s maximum recharge speed and deliver the correct amount of power.
- Safety Systems – Most, if not all power banks will offer secure against short-circuits, over-current and over- burdens. For the most part, the power bank will stop and will need you to connect the charging cable to reset the system.
- Battery Quality – This is something that you will need to consider. It’s hard to know about the quality of the Lithium battery inside without cracking the power bank open and having a look (not advisable). Generally speaking, if it’s ridiculously cheap it will likely be of a poor quality. My advice is to choose a recognized brand that has some control over their own R&D. There are so many companies attaching brand names on generic OEM power banks and selling them cheaply. Portable charging devices like the Zendure A-Series power bank do cost more, but it’s for a good reason.