What Size Of Pow­er Bank Should You Buy

For those of us who are frequently on the road, power banks are a lifesaver. When the battery on our cellphones runs out, these rectangular devices offer the necessary power. Apart from that, they save you the trouble of looking for a wall adaptor and a power outlet.

All you have to do is plug it in and you’re done. When purchasing a portable power bank, however, one of the most crucial factors to consider is the size and weight.

What Size Of Pow­er Bank Should You Buy

You wouldn’t want to carry a large brick around if you just use a power bank occasionally. The converse is also true. A tiny power bank will not suffice if you are frequently on the road. As a result, you must select the appropriate power bank size. Aside from that, you should figure out how many gadgets you need to charge and how fast they need to be charged.

So, if you’re looking to buy a power bank for your tablet or smartphone, this article will assist you in selecting the appropriate size. Let’s get this party started.

1. Numbers Of Devices

First and foremost, how many gadgets do you intend to charge on a regular basis using your power bank? Is it simply your smartphone that’s causing the problem? Do you have any plans to charge your headphones and tablet?

You’re safe if you want to recharge your wireless headphones/earphones or your watch. This is because, in comparison to other power-hungry devices like tablets and laptops, these devices do not consume nearly as much stored energy (yes, some laptops charge via power banks and vice versa).

Wireless earphones like the Apple AirPods Pro, for example, have a battery capacity of only 45.4 mAh. Smartwatches like the Samsung Galaxy Watch 4 have 361 mAh batteries compared to the Galaxy S21 Ultra’s 5,000 mAh.

In the end, the number of devices and the type of devices play an important part in selecting the correct power bank.

2. Your Primary Devices Battery Capacity

Now for the most crucial part: what should your power bank’s battery capacity be? As previously stated, the math is straightforward. On a good day, a modest power bank should be adequate to deliver a single round and half of a phone’s charge cycles. When we say little, we’re talking about a power bank with a capacity of 4,500 mAh to 5,000 mAh. These are modest gadgets that should be able to fully charge a low-cost smartphone.

If you have a Google Pixel 4a, for example, the Miady 5,000 mAh Mini Portable Charger should suffice as a backup.

However, if you have a smartphone with a large battery, it is but natural that you should opt for a heavy-duty power bank. However, it’s not as simple as buying a 5,000 mAh power bank to charge a 5,000 mAh smartphone. Life should be that simple, no?

You’ll have to consider the conversion ratio. When it comes to smartphones, the power rating is calculated at 5 volts.

But, in the case of power banks, the power rating is calculated at 3.7 volts. This is because they carry Li-ion (Lithium-Ion) battery cells. And naturally, this difference causes a step down in the charge cycles.

Thankfully, there’s an easy way to calculate the actual power of each device as per its capacity.

Here, let’s take the example of the 5,000 mAh power bank.

Total energy of the power bank is 5,000 mAh x 3.7V = 18,500 mWh.

Converting back to 5V, the capacity is 18,500 mWH / 5V = 3,700 mAh.

Hence, a 5,000 mAh power bank will be able to yield around 3,700mAh power. So, you’ll have to decide accordingly.

If you want to fully charge a 5,000 mAh phone with a power bank, you’ll need one with more than that capacity. At the same time, other factors such as the amount of charges it can hold must be considered.

If you wish to charge your Moto G100 multiple times, a 20,000 mAh power backup, such as the Anker PowerCore, is a good option. In comparison, a 20,000 mAh battery can charge the Moto G100 or the iPhone 13 Pro four times.

One of the most significant disadvantages of a high-capacity power bank is its weight. They are quite heavy (not literally) and can be a pain to transport. Aside from that, they’re also pricey. At the same time, they allow you to charge your phone without having to look for a power outlet.

3. Size And Weight

As previously said, a heavy-duty power bank is significantly heavier than its mid-sized competitors. Furthermore, they are significantly larger due to the gear required to store the required power.

These are the two biggest drawbacks of a heavy-duty power bank, especially if you want to use it while travelling or on the road. Yes, they are quite large. But, in the end, they aren’t so large that they aren’t transportable.

Power Bank Ka Photo Furthermore, heavy-duty power banks take a long time to charge. It might also be a setback, depending on your circumstances.

4. Fast Charging

Even if you choose a larger, heavier battery bank, make sure it has fast charging capabilities. After all, you don’t want your phone to be tethered to the power bank for hours at a time. USB-C Power Delivery is supported by several power banks, such as the Romoss SW30PS+. Some models also provide compatibility for Quick Charge 3.0. This ensures that your compatible phone charges quickly and efficiently.

This one assures that iPhones charge at 18W, whereas certain Samsung flagships charge at around 25W.

But, at the end of the day, you must consider whether it is practical to carry a large power bank with you every time you leave the house. Getting your hands on a good wall adapter and a charging cable, on the other hand, is a far smarter move. Wall chargers, such as the Baseus wall chargers, may deliver up to 65W of power, which is sufficient to charge both your phone and tablet.

If electrical adapters aren’t your thing, a car charger with comparable power can give the required strength to charge your smartphone. Nekteck USB-C Car Charger car adapters are very effective in charging smartphones and tablets quickly.

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