The 10 Best External Phone Battery, Tested And Researched

Jack Andrews By, Jack Andrews
INIU Portable Charger
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The Rundown

1. Best overall: INIU Portable Charger

"INIU Portable Charger is the thinnest 10000mAh power bank on the market and easily slips into any of your pockets or bags. With rapid 3A charging, INIU powers up your phone with no delay. Power up your device at home or on the go for a faster charge than ever before." Read Review

2. Best Bang For The Buck: Ekrist Portable Charger Power Bank

"Ekrist Portable Charger Power Bank has a built-in smart protection system that ensures complete protection for you. It can charge 6 to 8 times or recharge your cell phone, tablet, or another device without worrying about battery exhaustion. This power bank is compatible with iPad, iPhones, Android, Samsung Galaxy, most other Smart cell phones, and more." Read Review

3. Upgrade pick: TG90° Cell Phone External Battery Packs

"TG90° multifunctional power bank with a built-in lightning cable, USB-C, and micro-USB cable, the portable battery charger built in three cords supports charging almost all your smart devices. The 10000mAh rechargeable capacity can provide about 2-3 charges for your phones. With its cover with UV oil body design for dirty resistance and wear resistance, you can use it to charge your phone on the go without worrying about smudges or dirt getting into the device." Read Review

4. Best Durable: miisso External Battery Pack

"miisso External Battery Pack is your best travel companion. Its small body can be easily carried in your pocket, providing you with energy at all times. This portable charger cable with a built-in power bank is perfectly compatible with the iPhone series, plug the cable to charge your iPhone anywhere - even at a public charging station!" Read Review

5. Best Reliable: iWALK Portable Charger

"Don't worry about constantly running out of battery when you're on the go. This iWALK portable charger is small enough to fit in your pocket, clutch bag, or purse handbag and with a capacity of 9000mAh, you can fast charge your iPhone. This slim and light USB-Cable powered portable charger eliminates the need for wires and cable management by connecting directly to your device's charging port." Read Review

As you know, a phone is more than just a communication tool. It can help you manage your daily activities, keep track of your finances, plan your trips and stay connected with friends and family. Keeping your phone charged all the time is one of the major concerns when it comes to using it.

You might not know but most phones lose power quickly after being switched off. That’s why you need an external battery that will keep it juiced so you can make calls and use other functions for extended periods of time. Check out our top picks for the best external phone battery on the market today.

With INIU Portable Charger, you will have no difficulty finding anything to meet your needs! To help you find the best fit for your needs, we've put up a purchasing guide and also shown other great options for you to consider.

Before finalizing your selection, our staff advises that you look into these additional important resources. They may help narrow down your selection and clarify things to locate the right fit. Look no further than Ekrist Portable Charger Power Bank since you're seeking the budget-friendly option. Our top models are equipped with features to meet every requirement. 

Products Suggest

1 Top Choice
INIU Portable Charger
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2 Top Choice
Ekrist Portable Charger Power Bank
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3 Top Choice
TG90° Cell Phone External Battery Packs
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iWALK Portable Charger
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What to Look for When Selecting best external phone battery?

There are numerous factors for customers to consider whenever they decide to buy a best external phone battery. Simultaneously, it comes with many product types and brands, which makes it difficult for you to choose yourself. Thus, we are here to give you support, guidance, and solutions to these problems. Our buying guide will highlight some most outstanding features related to the best external phone battery of 2023.

Nowadays, the number of technology sale networks, especially websites, sale forums, or even the online space for customers’ comments, has been dramatically increased. So, you can quickly obtain information on best external phone battery available on these sources. 

Along with reading the update of best external phone battery on famous websites, you are also expected to go through some needed things below to make a great decision.

Wireless Charging

Wireless charging is also very popular. It allows compatible devices to be powered up without the use of a cable. All you have to do is place them on top the battery. Some battery packs can support Qi, which is the standard used for compatible Apple phones and Samsung smartphones. Apple's MagSafe charging technology was introduced with the iPhone 12. A range of MagSafe compatible batteries packs can be charged at up to 7.5W.

Charger Cable

A charger that has a very short cable is the most dangerous thing you could do. It is very annoying to need to search for a safe place to leave your phone charging.
Some chargers allow you to separate the charging cable from the adapter. If you require a longer cable, these chargers can be separated from the power adapter. Make sure that the cable you choose is high quality.
It is important to ensure that the cable you purchase has a high quality finish.


Although absolute size does not matter, smaller chargers are preferred over bigger ones. You can accept smaller chargers if your device requires more power, ports or both, however, smaller is always better.

Plug Format

Make sure that your charger is compatible with local sockets. You'll have to bring an adapter if you don't want to be bothered by the inconvenience of having to take it with you on your trip.
You can change your plug with chargers that have a modular design. They are more costly and you won't be traveling a lot with them.

Fast Charging

Amperage and voltage are the two main measurements of battery output. The voltage and amperage are the amounts of energy in the battery. Wattage is the measurement of total power. It's calculated by multiplying volts with amps. Manufacturers can increase the wattage to make the device charge more quickly.

Charging Speeds And Standards

While the charging speed for smartphones and other devices is expressed in Watts (W), most power banks also list the voltage (V), as well as the amperage. You can easily calculate the wattage by simply multiplying voltage and amperage. The maximum charge rate depends on the device you are using, what standards your phone supports and which charging cable you use. Most smartphones (including Apple's iPhones) support Power Delivery (PD), which charges at approximately 20 W. Some phones (such as Samsung's Galaxy S series) support a supplementary PD protocol, called PPS, that can charge up to 25W. Other phones support Qualcomm's Quick Charge (QC). Other fast-charging protocols exist, but power banks will not be available unless the manufacturer of your smartphone supports them.

Charging Capacity

Four rough groups are used to package the chargers. Most basic chargers come in tiny cubes measuring one inch with one USB port and fixed prongs at one end. These chargers usually offer 18W, but they are typically half the power of an average smartphone. These next groups come in larger sizes, measuring 2x2x2inches. They have one or two ports and are rated between 30-45W. This third category is for larger tablets and laptops, and they are rated at 60W. The largest and most costly chargers can provide 100W, and they often come with several USB ports.

USB Ports

Although most products only have one USB-C port on them, there are many that offer multiple ports. You can charge older accessories with chargers that mix USB-A/USB-C ports. Some also have different USB-C power levels, so be mindful of what you plug in. The extra ports can be very restrictive in terms of use, as you must share power between multiple devices. This makes it less convenient to have a fast charger.

Charging Circuitry

Chargers have used silicon-based circuits for years to connect with portable devices. Modern devices use gallium nitride, or GaN as their base. It has two major advantages. First, it conducts electricity better than silicon. Second, it heats less. This means that chargers are smaller and can deliver the same power, but they run cooler. It is especially important for large-power models. The GaN chargers may be more expensive, but they are worth the extra money if you have the option. Anker says they're now working on the third generation of GaN chargers.


Amperes are the units of current in a charger. This value is used to measure the speed of the charger's charging. Chargers with the highest quality can charge at 2.5A, or more for more powerful models. A high-amperage charger will not cause damage to your mobile phone.
Voltage is a variable. It affects charging speed and also the charge time. But unlike amperage it must match the voltage on the phone. This will avoid any irreparable harm. The voltages vary from 5V to 12V.


How do I charge my external phone battery?

To charge your external phone battery, you will need to connect it to a power source such as a power outlet or a USB port on your computer. Depending on the battery, you may need to use the included charger or a compatible charger. Make sure the charger is compatible with your battery and follow the instructions provided with your device.

How long does it take to charge my external phone battery?

The amount of time it takes to charge your external phone battery can vary depending on the type and capacity of the battery. Generally, it can take anywhere from a few minutes to several hours to charge a battery fully.

How do I know when my external phone battery is fully charged?

Most external phone batteries come with an indicator light or some other form of indication that shows when the battery is fully charged. If your battery does not have an indicator, you can use the phone to check the battery level.

How long will my external phone battery last?

The length of time an external phone battery will last depends on a variety of factors such as the type of battery, the capacity, the amount of usage, and the type of phone. Generally, the battery should last anywhere from a few hours to several days.

How do I take care of my external phone battery?

Answer: To ensure maximum performance and life of your external phone battery, make sure to regularly charge it and keep it away from extreme temperatures. Additionally, be sure to clean the contacts of your phone battery from time to time to ensure a good connection to the device.

As mentioned above, all of our information is drawn from actual research, so the accuracy level is reliable. Furthermore, best external phone battery of 2023 will be updated regularly to add new data. You should keep a close eye on our websites for any updates or additions.

After all, we are always available to support and assist you with any problems related to best external phone battery. Please feel free to contact us as soon as possible. Thank you!

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About Jack Andrews

Jack Andrews
Jack Andrews - the founder of Sublime. I spent my love on every tech product. I hope my sharing about technology devices will bring the best information as well as up-to-date data in the market right now.

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