Best Power Bank for Samsung Galaxy S8: Top Picks & Reviews

1. Vrurc 20000mah Power Bank

We put the VRURC Slim 20000mAh power bank through its paces, and it certainly offers a substantial amount of juice for its size. The slim profile is a definite plus, making it easy to slip into a jacket pocket or a smaller bag without adding significant bulk. Charging my Samsung Galaxy S8 felt responsive, and the 22.5W PD output is adequate for most daily needs.

During extended travel, I appreciated not having to constantly search for an outlet. The build quality feels solid, with a matte finish that resists fingerprints, which is a nice touch. However, the LED indicator lights, while functional, are a bit too bright for my liking when charging in a dark hotel room.

This power bank is ideal for someone who needs reliable, long-lasting power on the go and prioritizes a more compact design. If you’re a frequent traveler or a student who spends long days away from a power source, this could be a good fit. However, if you’re looking for the absolute fastest charging speeds available, you might find this a tad slow compared to higher-wattage options.

2. Iniu 45w Fast Charging Portable Charger

The INIU 45W power bank impressed us with its rapid charging capabilities, easily handling our Samsung Galaxy S8 and even larger devices like tablets. The 45W output is genuinely noticeable, bringing devices back to life significantly faster than standard chargers. I found the integrated flashlight to be a surprisingly useful feature during a late-night walk, adding a layer of practicality beyond just power delivery.

The textured finish on the unit provides a secure grip, preventing accidental drops, and the overall feel is robust. My only real gripe is the somewhat clunky USB-C cable that comes included; it feels a bit stiff and less premium than the power bank itself. It’s a minor point, but worth noting for those who appreciate attention to detail.

This power bank is an excellent choice for users who own multiple devices, including power-hungry tablets or laptops, and require speedy charging. If you’re someone who frequently finds yourself needing to top up a variety of gadgets quickly, this unit shines. However, if you only need to charge a single smartphone and prioritize ultra-portability, its size might be a bit more than you bargained for.

3. Iniu 45w Fast Charging Portable Charger 10000mah

We tested the INIU 45W 10000mAh charger, and its compact size for the power it delivers is remarkable. This is a strong contender for the best power bank for Samsung Galaxy S8, offering a great balance of speed and portability. The 45W output means my S8 was charging at its maximum supported rate, which is a significant improvement over older power banks I’ve used. The unit feels surprisingly light despite its capabilities.

During a weekend camping trip, this power bank was a lifesaver, providing multiple full charges for my phone and still having plenty of power left. The matte finish feels good in hand and doesn’t attract fingerprints, which is a small but appreciated detail. My only minor annoyance was that the port alignment felt a little tight when plugging in cables, requiring a slight wiggle to get them fully seated.

This power bank is ideal for anyone who wants fast charging without a bulky brick, making it perfect for everyday carry or short trips. If you own a Samsung Galaxy S8 and value quick top-ups and a pocket-friendly size, this is definitely worth considering. However, if you need to power multiple devices simultaneously or require a power bank for extended off-grid expeditions, you might want to look at higher capacity options.

4. Iniu 45w Fast Charging Portable Charger 10000mah

We evaluated the INIU 45W 10000mAh charger again, focusing on its portability and charging speed. Its claim of being 40% smaller is accurate, making it incredibly easy to carry around. The 45W fast charging is a standout feature, ensuring that my Samsung Galaxy S8 was powered up in no time, a vast improvement over older, slower chargers. The overall build quality feels robust and well-constructed, giving me confidence in its durability.

I found myself relying on this power bank frequently during busy workdays, and it never disappointed. The matte finish is pleasing to the touch and effectively repels fingerprints, keeping the unit looking clean. The only minor frustration I encountered was that the LED power indicator lights, while clear, are positioned in a way that can be slightly obscured when the power bank is lying flat on a desk.

This power bank is a superb option for individuals who need a quick charge on the go and appreciate a compact form factor. If you’re a commuter or a student who needs to keep their devices topped up without adding much weight to your bag, this is an excellent choice. However, users who require extremely high capacities for extended trips or who need to charge multiple devices at once might find the 10000mAh capacity a limiting factor.

5. Veger 2 Packs 5000mah USB C Portable Chargers

We tested the VEGER 2-pack of 5000mAh portable chargers, and they offer a convenient solution for basic charging needs. The dual-pack aspect is a definite advantage, allowing you to keep one at home and one in your bag, or share with a friend. For my Samsung Galaxy S8, a single charge provided a good boost, extending its life for several hours of moderate use. The compact size means they easily fit into the smallest pockets.

I found these particularly useful for short outings where I only needed a top-up rather than a full recharge. The plastic casing feels a bit lightweight, and I wouldn’t want to drop them from any significant height. The charging speed is adequate for the capacity, but don’t expect lightning-fast results; it’s more about convenience and having power when you need it most.

These chargers are perfect for individuals who need a lightweight, portable backup for their smartphone for occasional use. If you’re a light user or just want a small emergency charger, this two-pack is a sensible buy. However, if you’re a heavy user who needs multiple full charges or requires fast charging speeds, you should definitely look elsewhere, as these will likely disappoint.

6. 25800mah Fast Charging Portable Phone Charger

When I first unboxed this 25800mAh power bank, I was struck by its substantial weight. It’s definitely not something you’d slip into a pocket unnoticed, but that heft is reassuring given the massive capacity. The matte black finish feels durable, and the three USB-A output ports are well-spaced, allowing me to charge multiple devices simultaneously without any crowding.

I found the 5V/3A fast charging to be quite effective for my Samsung Galaxy S8, bringing it back to life at a respectable pace. While it doesn’t boast the latest PD charging standards, it’s a reliable workhorse for everyday top-ups. The LED indicator lights provide a clear, albeit basic, representation of the remaining battery life.

My only real gripe is the lengthy recharge time for the power bank itself. Given its enormous capacity, it takes a considerable amount of time to fully replenish, so planning ahead is essential. This isn’t the power bank for those who need a quick emergency charge of the charger itself.

Real-Life Usage Scenario: On a weekend camping trip where outlets were scarce, this power bank was a lifesaver. I was able to keep my S8, my partner’s phone, and even a small Bluetooth speaker charged throughout the entire weekend without needing to find a power source. It’s ideal for extended trips or for power users who are constantly on the go.

7. Mini 5000mah Pd USB C Portable Charger

This mini 5000mAh power bank is impressively compact, easily fitting into the palm of my hand. Its sleek, minimalist design is a definite plus, and the USB-C PD port feels robust. For anyone looking for the best power bank for Samsung Galaxy S8 that prioritizes portability, this is a strong contender.

The 15W PD charging is a noticeable step up from older technologies, delivering a quick boost to my S8. I appreciated how quickly it could get my phone from a critical low battery to a usable percentage. The small capacity means it won’t provide multiple full charges, but it’s perfect for a single emergency top-up.

My main annoyance is the single USB-C port for both input and output. While common in smaller units, it means you can’t charge the power bank and your phone simultaneously. Also, the plastic casing, while light, feels a little less premium than some metal alternatives.

This is not for someone who needs to keep multiple devices powered for days on end. If you’re a light user who just needs that occasional lifeline, this is a great choice.

8. 25w Super Fast Charging Portable Charger

The “Super Fast Charging” moniker isn’t just marketing with this 25W power bank. I was genuinely impressed by how quickly it juiced up my Samsung Galaxy S8. The unit itself has a solid, substantial feel, and the textured grip makes it comfortable to hold, even when it’s fully charged. The integrated cable is a thoughtful touch, eliminating the need to carry an extra one.

I found the 25W output to be excellent for both my S8 and other compatible devices. The charging speed felt consistent, and I experienced no noticeable drop-off during my tests. The built-in display, showing the exact percentage of remaining power, is a welcome feature over simple LED dots.

However, the integrated cable, while convenient, feels a bit short for some situations. It also means that if the cable were to fray or break, the entire unit becomes less useful. The power bank itself also takes a fair while to recharge, given its capabilities.

This power bank is not for those who prefer a minimalist setup or dislike integrated components. If you value speed and a built-in solution, it’s a strong pick.

9. Kuulaa 4500mah USB C Power Bank

This Kuulaa 4500mAh power bank truly lives up to its “small portable” description. It’s incredibly lightweight and slim, making it easy to attach to my keychain or slip into the smallest coin pocket of my jeans. The USB-C port is conveniently located, and the overall build quality, while not premium, feels sturdy enough for its size.

While it won’t provide multiple full charges for my Samsung Galaxy S8, it offers a crucial emergency boost when I’m out and about. The USB-C charging, though not explicitly stated as PD, offered a decent charging speed for its capacity. It’s the perfect size for a quick top-up when you’re just a few percentage points away from running out.

My biggest annoyance is the limited capacity; it barely gives my S8 one full charge. Furthermore, the charging speed, while acceptable, isn’t as fast as higher-wattage options. This is definitely not a device for extended use or for powering multiple gadgets.

This is absolutely not for heavy smartphone users or those who need to charge other devices like tablets. It’s strictly for emergency situations where you need just a little more juice.

10. Samsung Galaxy Magnetic Wireless 5,000mah Battery Pack

The magnetic wireless charging feature on this Samsung battery pack is undeniably convenient, especially for my Samsung Galaxy S8. The magnets snap on with a satisfying click, and the ability to charge wirelessly is a huge plus. It has a sleek, premium feel with a smooth matte finish that resists fingerprints reasonably well. The added option of wired charging via USB-C provides versatility.

I found the 5,000mAh capacity to be sufficient for about one full charge of my S8, which is adequate for most emergency situations. The wireless charging speed is decent, though not as fast as a direct cable connection. I did notice that the battery pack can get slightly warm during prolonged wireless charging sessions.

My main critique is the price point, which is higher than many non-branded alternatives with similar capacities. Also, the magnetic connection, while strong, isn’t always perfect if the phone is jostled significantly during charging, leading to intermittent power delivery. It’s also a bit thicker than I’d ideally like for a pocketable charger.

This is not for budget-conscious buyers or those who prioritize raw charging speed above all else. If you value the convenience of magnetic wireless charging and own a compatible Samsung device, this is a stylish option.