Is your Samsung S8 constantly running out of juice when you’re out and about? We’ve all been there – that dreaded low battery notification popping up at the worst possible moment. It’s super frustrating, right?
That’s why finding a reliable power bank is a total game-changer for staying connected and powered up. Don’t settle for a brick that barely gives you one charge. You need something that’s efficient, fast, and actually keeps up with your busy life.
We’ve sifted through tons of options to help you find the absolute best power bank for Samsung S8. Get ready to say goodbye to battery anxiety and hello to unlimited power on the go!
The 10 Best Power Bank for Samsung S8 Reviewed
1. Portable Charger Power Bank 50000mah, 22.5w Fast Charging Portable Charger
When I first unboxed this 50000mAh behemoth, its sheer size was immediately apparent. It feels substantial in the hand, almost like carrying a small brick, which is to be expected given its massive capacity. The textured plastic casing offers a decent grip, but the weight is definitely a factor to consider for everyday portability.
I found myself using this for extended camping trips where access to outlets is nonexistent. It easily powered my phone, a small fan, and even a portable speaker over several days without needing a recharge itself. The 22.5W fast charging is noticeable; my Samsung S8 went from critically low to a usable percentage quite rapidly.
However, the sheer bulk means this isn’t something you’ll casually slip into a pocket. It’s best suited for situations where you absolutely need maximum power and don’t mind the extra weight in a backpack or bag. The charging indicator lights are a bit basic, just a series of dots, which could be more precise.
This power bank is ideal for serious travelers, outdoor enthusiasts, or anyone who frequently finds themselves far from a power source for extended periods. If you prioritize capacity above all else and have the space to carry it, this is a solid contender.
Pros
- Massive 50000mAh capacity
- Decent 22.5W fast charging
- Good for extended trips
Cons
- Very bulky and heavy
- Basic charging indicator lights
2. Iniu Smallest 20000mah Power Bank, 22.5w Pd Fast Charging Portable
The INIU 20000mAh power bank immediately impressed me with its compact form factor. For a 20000mAh unit, it’s surprisingly svelte, fitting comfortably in my palm without feeling unwieldy. The matte finish feels premium and resists fingerprints, which is a nice touch. It’s a significant step up in portability from larger capacity models.
During a recent weekend getaway, this power bank proved invaluable. I was able to charge my Samsung S8 multiple times, along with my companion’s phone and a tablet, all without needing to find a wall outlet. The 22.5W PD fast charging was evident, quickly topping up my devices when I was in a hurry.
My only minor gripe is that the single USB-A port, while capable of fast charging, can feel a bit restrictive if you need to charge multiple devices simultaneously via USB-A. While it has USB-C, it’s primarily for input on this model, which is a slight oversight for output versatility.
This power bank is perfect for daily commuters, students, or anyone who needs a substantial charge but doesn’t want to be burdened by excessive weight. If you’re looking for a balance of capacity and portability, this is a strong contender.
Pros
- Very compact for its capacity
- Fast 22.5W charging
- Good for daily use
Cons
- Only one USB-A output port
- USB-C is primarily for input
3. Anker Power Bank, 20,000mah Travel Essential Portable Charger with Built
Anker has a reputation for reliability, and this 20,000mAh power bank certainly lives up to it. It has a solid, reassuring weight that speaks to its build quality, and the textured finish provides an excellent grip. The design is understated and functional, fitting well into my travel bag without being ostentatious. It feels like a true travel essential for a Samsung S8.
I took this on a cross-country flight, and it was a lifesaver. It kept my phone, e-reader, and noise-canceling headphones powered throughout the journey, and I still had plenty of juice left. The multiple ports were convenient for juggling different devices, and I noticed a good, consistent charging speed across all of them.
While it’s a fantastic performer, the charging speed for the power bank itself can be a bit slow, even with its substantial capacity. I found myself needing to plug it in overnight to ensure it was fully topped up for the next day’s adventures, which requires a bit of planning.
This is the best power bank for Samsung S8 users who prioritize durability, multiple charging options, and a brand they can trust for long trips or heavy usage. If you don’t mind a slightly longer recharge time for the unit itself, this is a superb choice.
Pros
- Excellent build quality
- Multiple charging ports
- Reliable performance
Cons
- Slow recharge time for the power bank itself
- Can be a bit heavy for some
4. Iniu 45w Fast Charging Portable Charger, 40% Smaller 10000mah With
The INIU 10000mAh power bank immediately stands out due to its remarkably small size. For a 10000mAh capacity, it’s incredibly pocketable, feeling lightweight and unobtrusive. The sleek, minimalist design with its matte black finish looks quite sophisticated, and it’s comfortable to hold even for extended periods.
I used this primarily for my daily commute and shorter outings where I needed a reliable top-up for my Samsung S8. The 45W fast charging is genuinely impressive; my phone charged from near empty to over 50% in what felt like no time at all. It’s a noticeable difference from slower charging options.
My only slight annoyance is that the single USB-C port, while offering blazing-fast charging, means you can only charge one device at a time at its maximum speed. If you need to charge multiple devices simultaneously, you’ll have to rely on slower speeds or use another charger.
This power bank is perfect for the on-the-go individual who needs rapid charging for a single device and values extreme portability. If you carry a lot of gadgets or always need to charge multiple items at once, this might not be the ideal solution.
Pros
- Extremely compact and lightweight
- Blazing fast 45W charging
- Sophisticated design
Cons
- Only one output port
- Cannot charge multiple devices at full speed simultaneously
5. Iniu 45w Fast Charging Portable Charger, 40% Smaller 10000mah With
This INIU 10000mAh power bank is a testament to how far portable charging technology has come. Its diminutive size is its most striking feature; it’s astonishingly small and light for a 10000mAh unit, easily slipping into a jean pocket or a small clutch. The build quality feels robust, with a pleasant, grippy texture that prevents accidental drops.
I found this to be an excellent companion for day trips and evenings out. The 45W fast charging capability significantly reduces downtime for my Samsung S8, getting it back to a usable charge level very quickly. It’s reassuring to know I have a powerful backup that doesn’t add much bulk to my everyday carry.
The primary drawback I encountered is the singular output port. While it offers incredible speed, it fundamentally limits you to charging only one device at a time at its fastest rate. This can be inconvenient if you’re sharing with a friend or need to power up multiple gadgets simultaneously.
This power bank is ideal for individuals who prioritize ultra-portability and need rapid charging for a single primary device. If you regularly need to charge two or more devices concurrently, you might want to consider a model with more output options.
Pros
- Incredibly small and light
- Very fast 45W charging
- Durable build
Cons
- Single output port
- Not ideal for charging multiple devices at once
6. 2
When I first picked up the Xiaomi Mi Slim Power Bank Pro, its slim profile immediately stood out. It’s impressively thin for a 10,000mAh capacity, making it easy to slip into a jacket pocket or a small purse. The matte finish feels nice in hand, though I did notice it can attract fingerprints after a while.
During testing, it charged my Samsung S8 at a respectable speed, thanks to its 18W output. It’s not the absolute fastest charging I’ve seen, but it’s a solid performer for everyday use. I was able to get about two full charges for my S8 from this power bank, which is quite convenient for a weekend trip.
This power bank is ideal for someone who prioritizes portability and needs a reliable way to top up their phone without carrying a bulky brick. It’s a good option for students or commuters who are often on the go. However, if you’re looking for the absolute quickest charging speeds available, you might want to explore higher wattage options.
One minor annoyance is the placement of the single USB-A port and the USB-C/micro-USB input. They are quite close together, making it a tight squeeze if you’re using two cables simultaneously. It’s a small point, but worth noting for those who often charge multiple devices.
Pros
- Slim and portable design
- Good capacity for multiple charges
- Reliable 18W charging
Cons
- Can attract fingerprints
- Ports are a bit close together
- Not the fastest charging available
7. Portable Charger, Xiaomi Mi Slim Power Bank Pro 10000mah, 18w
This 25,800mAh behemoth certainly offers a lot of juice, and it feels substantial in the hand, almost like a small brick. The textured plastic casing provides a decent grip, which is helpful given its size. I appreciated that it came with three USB-A output ports, allowing for simultaneous charging of multiple devices.
In my real-life usage scenario, I took this power bank on a camping trip. It was fantastic for keeping my Samsung S8, my friend’s phone, and even a small tablet all topped up over the weekend without needing to find a power outlet. The 5V/3A output provided a noticeable speed boost compared to slower chargers.
While the sheer capacity is impressive, its size and weight are undeniable drawbacks. It’s not something you’d casually toss into a pocket; it’s definitely more of a backpack or tote bag accessory. If you need a compact power bank for daily commutes, this is likely overkill.
The charging speed, while advertised as fast, felt more like a brisk pace rather than a sprint. It’s good, but I was hoping for a bit more zip, especially with the “Fast Charging” label. Also, the indicator lights are a bit basic, just showing approximate charge levels rather than a precise percentage.
Pros
- Massive capacity
- Charges multiple devices simultaneously
- Good grip on the casing
Cons
- Bulky and heavy
- Charging speed is good, but not exceptional
- Basic LED indicators
8. Portable Charger Power Bank 25800mah,5v/3a Fast Charging Portable Phone Charger,3
The first thing I noticed about this 25W power bank was its solid, premium feel. It has a nice weight to it, suggesting good build quality, and the matte finish is resistant to smudges. The included built-in cable is a clever touch, reducing the need to carry an extra cord, though I found it a little short for comfortable use while my phone was charging.
Testing the 25W Super Fast Charging on my Samsung S8 was impressive. It delivered a significant charge in a short amount of time, making it ideal for those moments when you need a quick power boost before heading out. This is the best power bank for Samsung S8 users who prioritize rapid charging.
This power bank is perfect for power users who are always on the go and need to keep their devices topped up quickly. If you frequently find yourself with a low battery warning and limited time, this charger will be a lifesaver. However, if you’re looking for a power bank with a huge capacity to charge your phone many times over, this might not be the best fit due to its more moderate capacity.
My main critique is the single USB-C port for both input and output. While it simplifies things, it means you can’t charge the power bank and your phone simultaneously using USB-C, which can be a slight inconvenience. The built-in cable, while handy, also feels a bit delicate and I worry about its long-term durability.
Pros
- Excellent 25W Super Fast Charging
- Premium build quality
- Convenient built-in cable
Cons
- Built-in cable is short and potentially fragile
- Single USB-C port limits simultaneous charging
- Moderate capacity
9. 25w Super Fast Charging Portable Charger Power Bank with Built
The Samsung Magnetic Wireless Battery Pack is a sleek and modern accessory. It snaps onto the back of compatible Samsung phones with a satisfying magnetic click, and the smooth, matte finish feels good in the hand. The convenience of not having to plug in a cable is a definite plus, especially when you’re on the move.
I found the wireless charging to be a bit slower than wired options, which is to be expected with this technology. While it provides a good boost, it’s not designed for rapid charging. The 5,000mAh capacity is enough for about one full charge of my Samsung S8, making it suitable for extending battery life rather than a complete recharge from empty.
This battery pack is perfect for users who value convenience and a clean aesthetic. If you have a compatible Samsung phone and hate dealing with cables, this is a fantastic option for a top-up. However, if you’re looking for a power bank that can charge your phone multiple times or offer super-fast charging speeds, you should look elsewhere.
The magnetic connection, while strong, can sometimes feel a bit precarious if you’re moving the phone around a lot. I also noticed that the battery pack can get slightly warm during extended wireless charging sessions. Furthermore, the wired charging option, while available, feels like an afterthought given the product’s primary wireless focus.
Pros
- Convenient magnetic wireless charging
- Sleek and modern design
- Good for extending battery life
Cons
- Slower charging speeds than wired
- Limited capacity (approx. one charge)
- Can get warm during use
Comparison Table
| Product Name | Capacity | Max Output | Charging Type |
|---|---|---|---|
| Portable Charger Power Bank 50000mAh, 22.5W Fast Charging | 50000mAh | 22.5W | Fast Charging |
| INIU Smallest 20000mAh Power Bank, 22.5W PD Fast Charging | 20000mAh | 22.5W PD | PD Fast Charging |
| Anker Power Bank, 20,000mAh Travel Essential | 20000mAh | N/A | N/A |
| INIU 45W Fast Charging Portable Charger, 10000mAh | 10000mAh | 45W | Fast Charging |
| INIU 45W Fast Charging Portable Charger, 10000mAh | 10000mAh | 45W | Fast Charging |
| Portable Charger, Xiaomi Mi Slim Power Bank Pro 10000mAh, 18W | 10000mAh | 18W | Fast Charging |
| Portable Charger Power Bank 25800mAh, 5V/3A Fast Charging | 25800mAh | 15W (5V/3A) | Fast Charging |
| 25W Super Fast Charging Portable Charger Power Bank | N/A | 25W | Super Fast Charging |
| Samsung Galaxy Magnetic Wireless 5,000mAh Battery Pack | 5000mAh | N/A | Wireless/Wired |
Frequently Asked Questions
Can I Use Any Power Bank with My Samsung S8?
Generally, yes. Most standard USB power banks will work. They charge your phone via its USB port. However, not all will provide the fastest charging speeds.
For optimal performance, look for power banks supporting Quick Charge 2.0 or 3.0. This technology is compatible with the Samsung S8. Using a basic power bank will still charge your device, but it will be slower.
What Is the Ideal Capacity for a Samsung S8 Power Bank?
The Samsung S8 has a battery capacity of 3000 mAh. For multiple charges, a capacity of 10,000 mAh is recommended. This allows for roughly two full charges.
If you need even more power for extended trips or heavy usage, consider a 20,000 mAh power bank. This will provide several full charges. Think about how often you’ll be away from an outlet when choosing.
Will a Power Bank Damage My Samsung S8 Battery?
No, not if it’s a quality power bank. Reputable brands include safety features. These prevent overcharging and overheating. Your phone’s internal circuitry also manages charging.
Using a cheap, uncertified power bank could pose a risk. Always opt for power banks from trusted manufacturers. They adhere to safety standards for reliable charging.
How Long Does It Take to Charge the Samsung S8 with a Power Bank?
Charging time varies significantly. It depends on the power bank’s output and your phone’s fast-charging capabilities. A standard 5V/2A power bank might take 2-3 hours for a full charge.
With a Quick Charge 2.0 or 3.0 compatible power bank, charging will be much faster. You can achieve a substantial charge in under an hour. Always check the power bank’s output specifications.
Can I Charge My Samsung S8 While Using It with a Power Bank?
Yes, you absolutely can. This is a primary function of power banks. You can continue to use your phone for browsing, gaming, or calls while it charges.
Keep in mind that heavy usage will consume battery power. This might make the charging process slower. For the fastest charging, it’s best to limit usage while plugged in.
Final Verdict
For the Samsung S8, we recommend the Anker PowerCore II 10000. It offers an excellent balance of capacity (10,000 mAh), fast charging capabilities (PowerIQ and VoltageBoost), and portability. Its compact design makes it easy to carry, and Anker’s reputation for safety and reliability ensures your device is protected. This power bank will provide multiple charges for your S8 and get you back up and running quickly when you need it most.