Samsung, a leading player in the smartphone industry, faced a hiccup with the Galaxy S20 due to its lack of significant innovation. They’ve made a strong comeback with the Galaxy S21 series, comprising the S21, S21+, and S21 Ultra. Each model introduces notable features, particularly the 120Hz refresh rate screens. The series also boasts larger batteries to support the higher refresh rate: 4,000mAh for the S21, 4,800mAh for the S21+, and 5,000mAh for the S21 Ultra. Given these advanced specs, especially the power-hungry 120Hz screens, using a power bank is advisable to maintain battery life throughout the day. This guide covers suitable power banks for the Galaxy S21 series, ensuring uninterrupted usage of all its features.
Baseus 65W 20,000mAh Power Bank
The first power bank I recommend for charging your Galaxy S21 is this Baseus 65W power bank. Of course, the 65W Power Delivery USB-C port on the power bank is more than enough for fast charging your S21; however, what matters most is the USB-C port features a 25W PPS super fast charging speed. That said, 25W PPS is only available when charging your S21 FE with this power bank; the super-fast charge rate is lost when charging other devices simultaneously.
For regular Power Delivery, 65W is available from the USB-C port when charging a single device; when charging two devices, the USB-C port outputs 45W, and charging three devices results in the USB-C port outputting 20W. The other two power bank ports are USB-A Quick Charge ports. In my review of the Baseus 65W power bank, I could charge my Lenovo laptop while charging my phone.
You can recharge this Baseus power bank from either the USB-C or Micro-USB ports; I highly recommend that you recharge the power bank from the USB-C port because it has a 60W recharging speed, while the Micro-USB input only has an 18W recharge speed. You will need a 60W PD charger, though. Also, this Baseus power bank has a 20,000mAh capacity that can charge your S21 to full power about two times or more.
INIU B63 65W 25,000mAh Power Bank
This INIU 65W power bank is very similar to the Baseus power bank that I mentioned because this power bank also has a 65W Power Delivery USB-C port, and the 65W PD port also features 25W of PPS that can super fast charge your Galaxy S21. The power bank also has a 30W USB-C port and a 22.5W USB-A port. You can only super fast charge your Galaxy S21 when charging it alone from the 65W USB-C port; charging other devices simultaneously splits the power.
The B63 power bank has a 25,000mAh capacity that can charge the Galaxy S21 or S21 Plus models to full power about three times, and you can still have spare capacity. This power bank comes with a USB-C to USB-C cable and a USB-C to USB-A cable. In my review of the INIU B63 power bank, I could recharge it at about 45W from a UGREEN 45W wall charger. Check out my video review of the INIU B63 65W 25,000mAh Power Bank to learn about its high capacity and efficiency.
Baseus Blade 100W PD Power Bank
Another Baseus power bank I wanted to recommend is this Baseus Blade charger. This is another popular power bank from Baseus. By design, you can tell it’s called the Blade because it has a 0.7-inch thin form factor, but the length and width of the power bank will prevent you from putting it into your pocket. That said, it’s easy to carry around or place it into a backpack or purse.
The power bank has two USB-C ports that can output 100W of Power Delivery, and they both feature 25W of PPS super fast charging for your Galaxy S21. However, that is only available when charging your S21 alone. Two USB-A Quick Charge ports on the power bank can fast charge your S21. The max recharging speed of the Basues Blade is 65W. The Baseus Blade also has a 20,000mAh capacity that can charge up the Galaxy S21 models to full power about two times or more. While reviewing the Baseus Blade 100W power bank, I found a screen at the top of the charger that shows the voltage and amperage so you can see how fast your Galaxy S21 is charging. Discover the sleek and powerful Baseus Blade 100W PD Power Bank in my video review.
iWalk LinkPod USB-C Mini Power Bank
On the lower capacity and output power side is this iWalk LinkPod power bank. The LinkPod’s design is one of the best for charging phones because the power bank has a built-in USB-C connector that you can plug directly into your Galaxy S21, and it becomes part of your phone. You don’t need a cable to use this power bank.
The USB-C connector has an 18W Power Delivery charge rate, so you can fast charge your S21, but super fast charging is unavailable. You can also use the built-in USB-C connector to recharge the power bank by plugging it directly into a USB-C port on a wall charger, and the power bank has an 18W recharge rate.
There is a USB-C port on this iWalk power bank, but it can only be used to recharge the power bank, and included in the box is a USB-C to USB-C cable. This LinkPod power bank has a 4,800mAh battery capacity to charge the Galaxy S21 FE to full power about once. In my full review of the iWalk LinkPod USB-C power bank, I found that I could recharge the power bank and charge my Note 9 simultaneously. Explore the compact and unique iWalk LinkPod USB-C Mini Power Bank in my video review.
iWalk LinkPod Y2 Built-in USB-C Cable Power Bank
Another iWalk power bank I recommend is this 9,600mAh battery capacity charger. So this one has more power to charge your Galaxy S21 to full power at least once, and you can have spare capacity to use later. Also, it has a design similar to this power bank, with a built-in USB-C cable with an 18W power delivery charge rate. This fast charges your S21 and can recharge the power bank by plugging the cable directly into a wall charger.
A USB-C port on the power bank is also available for recharging, and you get a USB-C to USB-C cable in the box. In my full review of the iWalk LinkPod Y2 power bank, I could recharge the power bank at nearly 20W using a 45W wall charger. In my video review, I will delve into the details of the iWalk LinkPod Y2 Power Bank with its built-in USB-C cable.
ROMOSS PEA30 30,000mAh Power Bank
This ROMOSS PEA30 power bank has a massive 30,000mAh battery capacity, and you can use this much power to charge your Galaxy S21 to full power about four times if that’s the only device you’re using to charge with this power bank. Depending on how often you use the power bank, this capacity can likely last for days.
On the charging side, there is a 30W Power Delivery USB-C port that features 25W PPS and that can super fast charge your S21; however, the super-fast charge rate is only available when charging your Galaxy S21 alone. In my review of the ROMOSS PEA30 power bank, I found that fast charging is unavailable when charging two or three devices simultaneously.
Recharging the ROMOSS PEA30 power bank is very accessible because you can use the USB-C port, the Micro-USB, or the Lightning input ports to recharge the power bank. I recommend using the USB-C port with a 30W PD charger to recharge this power bank because the USB-C port has a 30W recharge rate, while the other two ports only have an 18W input speed. Watch my video review of the ROMOSS PEA30 30,000mAh Power Bank to see its high capacity and performance.
MOMAX 10,000mAh Aluminum 20W Power Bank
There isn’t anything too special about this MOMAX power bank, but it’s a charger that gets the job done. The MOMAX power bank has a 10,000mAh capacity so that you can charge up your Galaxy S21 to full power at least once, and it has a 20W Power Delivery USB-C port that you can use to fast charge your S21, or you can use the USB-A Quick Charge port. PPS super fast charging is not available on this power bank. This MOMAX power bank stands out because it’s made of Aluminum and has a 12mm thickness, so the charger feels high-quality and slim enough to fit in the same pocket you place your phone in. In my review of the MOMAX 20 power bank, I could charge two phones without any problems.
UGREEN 20W Magnetic Power Bank
The UGREEN Magnetic power bank may be an odd charger for the Galaxy S23 because you can only use the magnetic part of the wireless charging with MagSafe-compatible iPhones. However, you can still place your Galaxy S21 on the pad to wirelessly charge it; it won’t attach magnetically. In my review for the UGREEN Magnetic power bank, I could attach my Galaxy Note 9 to the charging pad because I had a magnet at the back of my Note 9, so that is one option.
The UGREEN power bank also has a 20W Power Delivery port and a UBS-A port Quick Charge port that you can use to fast charge your Galaxy S21. The 10,000mAh battery capacity of the UGREEN power bank is enough to charge the S21 to full power once, and you can still have spare capacity to use later.
Final thoughts about my choice of Power Banks for the Galaxy S21
The Galaxy S21 uses a lot of power, and a power bank may not be needed for everyone, but it’s nice to have just in case. Also, you can easily choose what power bank is right for you; whether you want to go with a UGREEN 20W power bank or a higher capacity ROMOSS PEA30 power bank, you are sometimes trading power for portability. Check out my best chargers for the Galaxy S21 guide if you’re curious about what types of wall chargers work best for charging the Galaxy S21 series.
Since 2016, Usman has flourished as an independent tech journalist, reveling in the evaluation of diverse tech gadgets, with a particular fondness for charging technology to ascertain product performance. Besides his journalistic endeavors, he helms the Charger Harbor YouTube channel, where he extends his tech insights to a broader audience.