10 Best Small 3,000mAh – 5,000mAh Power Banks

(Last Updated On: April 20, 2020)

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If you’ve read our many power bank reviews, then you know that power banks come in many different shapes, sizes, charging capabilities and of course, capacities.

We’re here to show you the best power banks on the lower end of the spectrum that have lower capacities and the small size to take these portables chargers nearly anywhere.

These chargers sit in a range of 3,000mAh to 5,000mAh of capacity that is perfect for everyday use because they’re able to provide just enough power, and some are even able to go beyond just a day’s use.

Let’s take a look at the best small power banks with capacities to match.

Power Banks in this Guide:

#1: Anker PowerCore 5000

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Anker is known for creating top-tier power banks and there’s no exception here with their PowerCore 5000 being the best small power bank.

It’s a new breed of small power banks that’s being ushered in with its larger capacity of 5,000mAh of power, that can charge many smartphones twice, some other smartphones can even charge more times.

The charging speed is another aspect that makes the power bank awesome because both the Output and Input are 5V/2.0A. As a result, you can expect most smartphones that are connected to the PowerCore 5000 to charge at their fastest speed.

The recharging speed is equivalent to the Output, so you can expect a full recharge within 3-hours. That’s enough time to use the power bank again in a single day.

Of course, there’s the portability, with it being rather larger than most small power banks, it still manages with being super portable and can be taken anywhere. It’s just a bit thicker than power banks of smaller capacities, and putting it into a pocket may not be the best option but it can still be very versatile.

When you add in the awesome build and the use of Panasonic battery cells to make the Output capacity very close to its initial capacity, then this small power bank is one the best in this mini area of portable chargers.

Pros for Anker PowerCore 5000:

  • Has a 5,000mAh power capacity that can charge most phones to full power once
  • USB-A port has a 2 Amp charging speed
  • Can be recharged at 2 Amps
  • Comes with a Micro-USB cable

Cons for Anker PowerCore 5000:

  • None

Read Review for Anker PowerCore 5000

Specs of the PowerCore 5000:

  • Capacity: 5,000mAh
  • Output: 5V/2.0A
  • Input: 5V/2.0A via Micro USB Input
  • LED Power Indicators: Three-LED status system
  • Size: 4.2 x 1.3 x 1.3 inches
  • Weight: 4.8 ounces
  • 18-month warranty

#2: Aukey 5,000mAh USB-C Portable Charger

 

The new standard for charging is now becoming USB-C. It’s the standard that many new Andriod smartphones are using, some tablets are using and now even laptops are starting to use USB-C.

This all means that you’re eventually going to be able to charge your laptop and smartphone with basically the same charger. Well, you basically can now if you own something like a Google Pixel 2 and a USB-C compatible MacBook. With that said, this Aukey 5,000mAh power bank is quite important.

That’s because there aren’t many Mini power banks on the market that make use of USB-C. Also, the only port on this Aukey power bank is the USB-C port and you can use it as an Output and input. The output charging speed is 5V/3.0A, while the input recharge speed for this power bank is 5V/2.0A.

You have to use a USB-C to USB-C charging cable to charge USB-C compatible devices with this power bank. Or you can use a USB-C to Lightning power bank to charge the iPhone X or iPhone 8.

Pros for Aukey 5,000mAh USB-C:

  • Uses a USB-C port that has a 3 Amp charging speed
  • Recharges from the USB-C port, and has a 2 Amp recharge speed
  • Comes with a USB-C to USB-C charging cable

Cons for Aukey 5,000mAh USB-C:

  • Does not feature Power Delivery

Read Review for Aukey 5,000mAh USB-C Portable Charger

Specs of the AUKEY 5,000mAh USB-C Portable Charger:

  • Capacity:            Advertised: 5,000mAh            Output Capacity: 4,000mAh
  • Output:  5V/3.0A
  • Input:      5V/2.0A
  • LED Power Indicators: 4 LED Dotted Power Capacity Indicators
  • Size: 6.2 x 2.6 x 1.1 inches
  • Weight: 4.5 Ounces

#3: Anker Astro E1 5,200mAh Portable Charger

It’s quite similar to Anker’s PowerCore 5000, but its size and design are just a bit different. Known to be candy bar sized, the power bank does very well at being one the best small power banks on the market because of its short length and skinny width. As a result, it can fit into a pocket and easily be held in your hand.

Then there’s the charging, and it can Output 5V/2.0A charging speed to your devices. This amount of Amperage is enough to charge many smartphones at their max speed.

The input speed at 1 Amp is to be expected since it’s quite a small charger. The power capacity does a great job at keeping a great conversions rate, so you can very well charge your smartphone up to 2 times. Some may even do 3 times.

The design is one of the best aspects since it begins charging automatically and turns off when nothing is connected to the power bank. However, these kinds of features are prevalent within many of Anker’s portable chargers, which is a great thing to see.

Pros for Anker Astro E1 5,200mAh:

  • Can charge most smartphones to full power once
  • Has a 2 Amp output and input
  • Comes with a Micro-USB cable

Cons for Anker Astro E1 5,200mAh:

  • None

Read Review for Anker Astro E1 5,200mAh Power Bank

Specs of the Anker Astro E1 5200mAh:

  • Capacity: 5,200mAh
  • Output:   5V/2.0A
  • Input:   5V/2.0A
  • LED Power Indicators: Four-LED Power Indicators
  • Size: 3.8 × 1.7 × 0.9 inches
  • Weight: 4.16 ounces

#4: Jackery Air 6

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Slim power banks are paving the way for the small power bank arena. This is because they’re flattened versions of the traditional cylindrical power banks that are used. This Jackery Air 6 is a great example of what a slim power bank should be.

It has the same dimensions and weight that any smartphone would. As a result, you can carry this Air 6 easily or simply put it into your pocket along with your smartphone. The user experience with this charger is straightforward and there’s no way it could be cumbersome.

It’s very minimalist design is what makes it very easy to use by having nearly all the functional components on a single side.

The power capacity may not be the best with it initially being 3,000mAh but actually delivering 2,500mAh but even so, for its awesome portability and ability to charge a single smartphone to its full capacity, this slim charger is ready to go wherever you need it to.

Pros for Jackery Air 6 Power Bank:

  • Is insanely thin and is as thin as most smartphones
  • Can be recharged at 2 Amps

Cons for Jackery Air 6 Power Bank:

  • Has a 1 Amp output charging speed

Read Review for Jackery Air 6 Power Bank

Specs of the Jackery Air 6 Power Bank:

  • Capacity:                 Advertised Capacity: 3,000mAh        Real Capacity: 2,500mAh
  • Output:  5V/1.0A
  • Input: 5V/2.0A  Via Micro-USB
  • LED Power Indicators: Single LED Indicator with Color Variants
  • Size: 4.6 x 0.3 x 2.4 inches
  • Weight: 3.4 ounces
  • Comes with an Apple Lightning Cable

#5: Anker PowerCore Fusion 5000

We’ve got quite a few Anker portable chargers in this guide, and that’s because Anker is a brand that not only makes quite a few mini power banks but the ones they have are great quality ones.

This is their PowerCore Fusion 5000 portable charger. It, of course, has a 5,000mAh power capacity that can charge most smartphones to their full power about 1.5 times.

That said, the most innovative part of this charger is using it. As this 5,000mAh power bank makes use of two USB-A ports. The charging speed from the USB-A ports changes depending on how you use the charger.

That’s because this power bank can be used as a portable charger, or you can use it as a USB wall charger, with its use of a built-in AC adapter.

The charging speed of each of the ports is 3A when you use it as a power bank and the max output is also 3A. While you’re using it as a USB wall charger, the ports have a charging speed of 5V/2.1A, and that’s to prevent any overheating.

This PowerCore Fusion 5000, slows down its charging speed because while it’s plugged into an AC outlet, that’s also how it can recharge. That said, this power bank also makes use of a Micro-USB input if you want to recharge it that way too, at a recharge speed of 5V/2.0A.

Pros for Anker PowerCore Fusion 5000:

  • Has a 5,000mAh power capacity to charge smartphones to full power and have some left over
  • Uses two charging ports, to charge two devices at once
  • Can be recharged through either the Micro-USB input or by plugging it into a wall
  • Doubles as a wall charger

Cons for Anker PowerCore Fusion 5000:

  • Slower charging when you’re using it as a wall charger

Read Review for Anker PowerCore Fusion 5000

Specs of the Anker PowerCore Fusion 5000:

  • Capacity:            Advertised: 5,000mAh            Output Capacity: 3,500mAh
  • Output: 

Used as a USB Wall Charger: Each Port Outputs 5V/2.1A

Used as a Power Bank: Each Port Outputs 5V/3.0A

  • Input:    Via AC Adapter: 100-240V~0.5A 50-60Hz        Via Micro-USB Input Port: 5V/2.0A
  • LED Power Indicators: 3 LED Dotted Power Capacity Indicators
  • Size: 2.8 x 2.8 x 1.2 inches
  • Weight: 6.7 Ounces

#6: Anker PowerCore+ Mini

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It’s always about the amount of power that you can get from a small power bank. This PowerCore+ Mini takes what a mini charger should provide and makes it into the most optimal charging experience.

The power capacity is normal for what these small chargers can bring to the table, with 3,350mAh of power capacity. The best part of the power capacity is that it’s very close to the initial capacity since the power bank uses Panasonic battery cells. As a result, you can either get 1 full charge to your smartphones or maybe even a half a charge more.

Charging speed is at the most basic level with it providing an Output and Input speed of 5V/1.0A.

Sure, it’s not the fastest charging speed that you can get with portable chargers like these, however, it’s more about the ease of use and portability for chargers like these. Take for instance the functional components and how they’re just on just a single side of the power bank.

This charger doesn’t provide the best in charging speed, but for everything else, like its power capacity, design and build quality, all of those things make this one of the best small portable chargers on the market.

Pros for Anker PowerCore+ Mini:

  • Extremely small form factor
  • Comes with a Micro-USB cable

Cons for Anker PowerCore+ Mini:

  • 3,000mAh power capacity cannot charge most smartphones to full power

Read Review for Anker PowerCore+ Mini Portable Charger

Specs of the Anker PowerCore+ Mini:

  • Capacity: 3,350mAh
  • Output: 5V / 1.0A
  • Input: 5V / 1.0A
  • LED Power Indicator: Yes
  • Size: 3.7 x 0.9 x 0.9in
  • Weight: 3 ounces
  • Price: $12.99

#7: RAVPower Luster Portable Charger

It’s a small charger that has a very similar design to other cylindrical power banks. It stands toe to toe with more known small chargers, so it shouldn’t be dismissed without knowing what makes this RAVPower Luster Mini so important.

Okay, so there’s nothing truly extraordinary about this charger but just as the PowerCore+ Mini, it takes itself to the limit of what these things can do. It has a power capacity of 3,350mAh and that mostly stays the same with the use of Panasonic battery cells, as they give a better Energy conversion rate and can hold onto their capacity in the long-term.

The charging speed isn’t anything special with the Output and Input delivering a 5V/1.0A charging speed. However, when you have something that’s designed like this and so portable that it can be taken anywhere, the charging speed isn’t the most important aspect.

One of the best things that mini chargers can be, is to be as simple as possible. This is true for the Luster Mini.

Pros for RAVPower Luster:

  • Comes with a small form factor
  • Small form factor

Cons for RAVPower Luster:

  • Slow 1 Amp output and input charging

Read Review for RAVPower Luster Portable Charger

Specs of the RAVPower Luster portable charger:

  • Capacity:  3,350mAh
  • Output:   5V/1.0A
  • Input: 5V/1.0A via Micro USB Input
  • LED Power Indicators: 3 LED power capacity indicators
  • Size: 4.02 x 0.91 x 0.91 inches
  • Weight: 2.6 ounces
  • Comes with Micro-USB Cable

#8: Xcentz 5,000mAh Delivery Power Bank

 

Nearly all 5,000mAh power banks on the market lack one thing, and that would be fast charging tech like Quick Charge (QC) and Power Delivery (PD). As these small and lower capacity power banks are supposed to be simple.

That’s what makes this Xcentz 5,000mAh power bank extraordinary because this charger uses Quick Charge and Power Delivery. So if you have an Android smartphone you can use either one of the ports to fast charge your phone, as most of them are compatible to use QC or PD. Also, if you have an iPhone X, iPhone 8 or newer, then you can use the Power Delivery port to fast charge your iPhone, too.

However, you will need a Lightning to USB-C charging cable to charge an iPhone with the USB-C PD port.

The 5,000mAh power capacity is still only enough to charge most smartphones to full power only once, but the main highlight is that you can get your phone to its full power at a faster charging speed. The Power Delivery port has an 18W charging speed, which is mostly useful for charging smartphones, but you can charge it with a MacBook, however, it will charge slowly.

You can also recharge this power bank at Power Delivery speeds with a PD wall charger, but this power bank does not come with one. You get fast charging, a 5,000mAh power capacity all with a length of 3 inches and a thickness of 1 inch.

Pros for Xcentz 5,000mAh PD:

  • Features 18W USB-C Power Delivery and Quick Charge for fast charging
  • Can be recharged at Power Delivery speeds
  • 5,000mAh power capacity can charge most smartphones to full power
  • Comes with USB-C to USB-C cable & USB-C to USB-A cable

Cons for Xcentz 5,000mAh PD:

  • Does not include Power Delivery wall charger

Read Review for Xcentz 5,000mAh Power Delivery Power Bank

Specs of the Xcentz 5,000mAh Power Bank with PD and Quick Charge:

  • Capacity:

Initial Capacity: 5,000mAh

Output Capacity: 3,700mAh

  • Output:

USB-C Power Delivery Port: 18W

USB-A Port: 18W

  • Input:

USB-C Port: 18W

  • LED Power Indicator: Four Blue Power Indicators
  • Size: 3 x 1.4 x 1.1 inches
  • Weight: 3.6 Ounces

#9: Belkin Pocket Power Slim Power Bank

 

Slim power banks can be a lot more convenient when it comes to portability than cylinder power banks. This is because slim power banks are less thick, and they can end up being as slim as some smartphones, which makes placing a slim power bank into your pocket like another phone.

What you get with this Belkin power bank is a 5,000mAh power bank that can charge your smartphone to full power at least once. What’s most notable is that the form factor of this charger is quite slim with a thickness of 0.5 inches, and it has a length of 4.9 inches. The Belkin charger also only weighs 4 ounces, which isn’t even half a pound.

Charging power is still good for a mini power bank, with it featuring a single USB-A port that has a 5V/2.4A charging speed and the power bank can be recharged at 2 Amps with its Micro-USB input port. So it’s not as slim as your smartphone,  but this Belkin power bank is still slimmer than most cylinder or lipstick form factor power banks.

Pros for Belkin Pocket Power Slim:

  • Has a 2.4A output charging speed
  • Can be recharged at 2 Amps
  • 5,000mAh power capacity
  • Comes with a Micro-USB cable
  • Slim form factor makes it easier to place into a pocket

Cons for Belkin Pocket Power Slim:

  • No fast charging

Specs of the Belkin Pocket Power Slim:

  • Capacity:  5,000mAh
  • Output: 5V/2.4A
  • Input: 5V/2.0A via Micro USB Input
  • LED Power Indicators: 4 LED Power Capacity Indicators
  • Size: 4.9 x 3 x 0.5 inches
  • Weight: 4 ounces

 

#10: RAVPower 5,000mAh Power Bank 2.4A

We already mentioned RAVPower’s Luster portable charger which has a 3,000mAh power capacity. This power bank from RAVPower features a 5,000mAh power capacity which ultimately means that you can charge most modern smartphones that have 4,000mAh batteries to their full power, and still have a little bit leftover.

The power banks still feature a single port to charge a single device, the port has a 5V/2.4A charging speed, which is faster than the usual 1 Amp or flat 2 Amp charging speed that most power banks tend to have. The power bank also recharges at 2 Amps, and it comes with a Micro-USB cable.

The power bank itself is only about 3.5 inches in length and has a thickness of 1 inch, ensuring that you’ll be able to take it anywhere.

Pros for RAVPower 5,000mAh:

  • 2.4A output charging
  • 2.0A input recharging speed
  • Comes with a Micro-USB cable

Cons for RAVPower 5,000mAh:

  • No fast charging

Specs of RAVPower 5,000mAh Power Bank:

  • Capacity: 5,000mAh
  • Output: 5V/2.4A
  • Input: 5V/2.0A via Micro USB Input
  • LED Power Indicators: 4 LED Power Capacity Indicators
  • Size: 3.5 x 1 x 1 inches
  • Weight: 5.6 ounces

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