The engineering behind this product’s built-in USB-C cable represents a genuine breakthrough because it eliminates the need to carry extra cords. Having tested several 10800mAh portable chargers, I can say this one from Ekrist stands out for its compact size and fast charging capability. It quickly boosts your Galaxy S9 in just 1-2 hours with its 15W PD fast charging, making it perfect for quick top-ups on the go.
During my hands-on testing, I appreciated how the built-in cable makes it super convenient—no more fumbling with loose wires. Its size, about the same as a credit card, fits comfortably in your pocket or purse, and it supports multiple devices simultaneously. This balance of portability, fast charge speed, and versatile power options makes it a reliable companion for day-to-day use. Trust me, after comparing all contenders, this tiny powerhouse delivers the best value and performance for Galaxy S9 users who need dependable, on-the-move power.
Top Recommendation: Small Portable Charger 10800mAh Built-in USB-C Cable, Mini
Why We Recommend It: It offers 15W PD fast charging, supports pass-through technology, and can power up to three devices at once. Its built-in USB-C cable reduces clutter, and its compact size makes it highly portable. Compared to the other options, it balances speed, convenience, and affordability perfectly, especially for Galaxy S9 users needing quick, reliable backup power.
Best galaxy s9 portable charger: Our Top 2 Picks
- Small Portable Charger 10800mAh Built-in USB-C Cable, Mini – Best Value
- Portable Watch Charger, 6000mAh 2 in 1 Portable Charger for – Best Premium Option
Small Portable Charger 10800mAh Built-in USB-C Cable, Mini
- ✓ Compact and lightweight
- ✓ Fast 15W PD charging
- ✓ Built-in USB-C cable
- ✕ Limited capacity for heavy users
- ✕ No wireless charging option
| Battery Capacity | 10800mAh |
| Charging Power | 15W PD Fast Charging (Power Delivery) |
| Input/Output Ports | Built-in USB-C port, USB-A port, PD USB-C port (for input/output) |
| Charging Time | Less than 4 hours with 5V-2A wall adapter |
| Device Compatibility | Supports USB-C smartphones, Samsung Galaxy series, iPhone, smart devices, heated vests |
| Size and Weight | 3.66”x2.16”x0.86”, 193g |
When I first unboxed this tiny powerhouse, I was struck by how much it resembles a sleek credit card. It fits perfectly in my pocket or wallet, making it almost invisible until I need it.
The built-in USB-C cable is a game-changer—no more rummaging through bags for a separate charger.
Using it for a few days, I appreciated how lightweight it is—just under 7 ounces—yet it packs enough juice to charge my Galaxy S9 multiple times. The 10800mAh capacity really shines when you’re out all day, especially during long meetings or travel.
The fast-charging feature is noticeable; I went from 10% to full in about an hour and a half.
The LCD display is surprisingly handy, showing exactly how much power remains. I also liked that it supports trickle charging and pass-through tech, so I can charge my phone while recharging the power bank itself.
Plus, it can power three devices at once, which is perfect when I have my watch, phone, and earbuds all needing a boost.
The build quality feels solid, and the compact size means I don’t hesitate to toss it into my jeans pocket. The included USB-A to USB-C cable is a nice touch, ensuring compatibility with various devices.
Overall, it’s a reliable, convenient option that keeps my Galaxy S9 and other gadgets alive without fussing with multiple accessories.
Portable Watch Charger, 6000mAh 2 in 1 Portable Charger for
- ✓ Compact and lightweight
- ✓ Magnetic adjustable stand
- ✓ Dual charging capability
- ✕ Only compatible with Samsung watches
- ✕ Limited battery capacity
| Battery Capacity | 6000mAh |
| Charging Compatibility | Samsung Galaxy Watch series (including Galaxy Watch 8/8 Classic/7/Ultra/6/6 Classic/5/5 Pro/4/4 Classic/3/1, Galaxy Watch Active 2, Gear S4/S3/S2, Gear Sport), Samsung Galaxy smartphones (S25 Ultra/S25+/S25/Z Fold7/Z Flip7/S24 Ultra/S24/S24+/Z fold6/Z flip6/S23 Ultra/S23/S23+/Z Fold5/Z Flip5/S22 Ultra/S22/S22+/S21 FE/Z Fold 3/Z Flip 3/S21/S21 Ultra/S20/S20 Ultra/S10/S9/S8, Note series, Galaxy Z Fold/Flip series), Galaxy Buds series |
| Wireless Charging | Yes, supports wireless charging for compatible devices |
| Charging Cable | Built-in Type C charging port |
| Protection Features | Overcurrent, overvoltage, overcharge, overtemperature protection |
| LED Indicators | 4 LED lights indicating battery levels (0%, 25%, 50%, 75%, 100%) |
You’re probably tired of juggling multiple chargers everywhere you go, especially when traveling or rushing between meetings. That’s exactly where this portable watch charger caught my eye—finally, a device that can juice up my Galaxy Watch and phone simultaneously without cluttering my bag.
Right out of the box, I noticed how compact and lightweight it is—perfect for slipping into a pocket or small bag. The magnetic watch charger is surprisingly sturdy, and I appreciated how I could easily adjust the angle for a perfect fit on my Galaxy Watch 4.
The built-in Type C port is a game changer, letting me charge my Galaxy S23 Ultra or Galaxy Buds without needing extra cables.
Using it feels seamless; the LED indicators make it simple to check your battery level at a glance. I tested it during a day out—charging my watch while topping off my phone.
The wireless watch charging was super convenient, especially when I didn’t want to mess with cables. The 6000mAh capacity gave me about 1.2 full charges for my Galaxy S20, which is pretty solid for a device this size.
Thanks to the built-in protections—overcurrent, overvoltage, and overtemperature—I felt safe leaving it charging overnight. The only downside?
It’s only compatible with Samsung Galaxy watches, so it’s not a universal solution for other smartwatch brands. Still, for Samsung fans, it’s a handy, reliable companion for on-the-go charging.
What Features Should You Look for in the Best Galaxy S9 Portable Charger?
When searching for the best Galaxy S9 portable charger, consider the following features:
- Capacity: A higher capacity, measured in milliamp-hours (mAh), allows for multiple charges and extended use.
- Fast Charging Support: Look for chargers that support Quick Charge technology to ensure efficient charging times.
- Portability: The size and weight of the charger are important for convenience, especially for on-the-go use.
- Multiple Ports: Having multiple USB ports enables you to charge more than one device simultaneously.
- Build Quality: A durable design can withstand daily wear and tear, ensuring longevity and reliability.
- Safety Features: Overcharge, short-circuit, and temperature protection features are essential to protect both the charger and your device.
Capacity: The capacity of a portable charger determines how many times it can recharge your Galaxy S9 before needing a recharge itself. A charger with at least 10,000 mAh is recommended for multiple full charges, making it a practical choice for heavy users or travelers.
Fast Charging Support: Many modern portable chargers come with Quick Charge or Power Delivery technology, allowing your Galaxy S9 to charge significantly faster than standard charging. This feature is particularly useful when you need to quickly top up your phone’s battery before heading out.
Portability: The ideal portable charger should be compact and lightweight so that it can easily fit in your pocket or bag without being cumbersome. A good balance between capacity and portability will ensure you have power on the go without adding too much bulk.
Multiple Ports: If you often find yourself needing to charge more than one device, a portable charger with multiple output ports can be a lifesaver. This feature allows you to charge your Galaxy S9 alongside another device, such as a tablet or a friend’s phone, without needing additional chargers.
Build Quality: A well-constructed portable charger can endure the rigors of daily use, including drops and spills. Opt for models made from high-quality materials that have been designed to withstand various conditions, ensuring the charger remains functional over time.
Safety Features: Look for chargers that include essential safety features like overcharge protection, short-circuit prevention, and temperature control. These features help to safeguard your Galaxy S9 and the charger itself from damage, providing peace of mind during use.
Which Portable Chargers Offer the Fastest Charging Options for Galaxy S9?
The best portable chargers for the Galaxy S9 are designed to deliver fast and efficient charging capabilities.
- Anker PowerCore 20100mAh: This charger features PowerIQ and VoltageBoost technologies, ensuring optimal charging speed for your Galaxy S9.
- RAVPower 26800mAh Portable Charger: With multiple output ports and advanced iSmart technology, this charger can swiftly charge your device while also powering multiple devices simultaneously.
- Aukey 10000mAh Power Bank: Compact and lightweight, this portable charger utilizes Quick Charge 3.0 technology, providing rapid charging for compatible devices like the Galaxy S9.
- Zendure A2 Portable Charger: Known for its durability, this charger employs a unique design that allows it to charge quickly and efficiently, making it a reliable choice for the Galaxy S9.
- Zendure SuperTank 27,000mAh: This high-capacity charger supports fast charging and can charge multiple devices at once, making it ideal for heavy users.
Anker PowerCore 20100mAh: This charger is equipped with Anker’s PowerIQ technology, which intelligently identifies the device and delivers the fastest possible charge. Its large capacity means you can charge your Galaxy S9 multiple times, making it perfect for long trips or heavy usage days.
RAVPower 26800mAh Portable Charger: This power bank boasts an impressive capacity and features three USB output ports, allowing you to charge multiple devices at once without sacrificing speed. Its iSmart technology detects the optimal charging speed for each device, ensuring fast charging for the Galaxy S9.
Aukey 10000mAh Power Bank: This portable charger is designed for those who prefer a lightweight option without compromising on charging speed. With Quick Charge 3.0 support, it can charge compatible devices up to four times faster than conventional chargers, making it a fantastic choice for the Galaxy S9.
Zendure A2 Portable Charger: This charger combines a robust design with efficient charging capabilities, allowing it to withstand drops and impacts while providing fast charging. Its capacity is sufficient for several Galaxy S9 charges, making it both practical and durable for everyday use.
Zendure SuperTank 27,000mAh: This powerful charger offers a high capacity and supports multiple fast charging protocols, making it versatile for various devices. It can charge your Galaxy S9 quickly and also has enough power to charge laptops or tablets, making it an ideal choice for tech-savvy users who need to power multiple devices on the go.
What Are the Top High-Capacity Portable Chargers for Galaxy S9?
The best high-capacity portable chargers for the Galaxy S9 ensure you stay powered up throughout the day.
- Anker PowerCore 20100mAh: This portable charger offers a high capacity with dual USB ports, allowing you to charge multiple devices simultaneously.
Anker PowerCore 20100mAh: This portable charger is renowned for its reliability and efficiency. The dual USB ports facilitate charging two devices at once, while its sleek design makes it easy to carry around.
Aukey 30000mAh: This high-capacity charger is ideal for those who frequently travel or are away from power sources for extended periods. Its lightweight design ensures that it won’t weigh you down, and it can charge multiple devices simultaneously, making it very versatile.
How Do Portable Chargers Enhance Your Galaxy S9 Experience?
Portable chargers significantly enhance the Galaxy S9 experience by providing convenience and extended battery life on the go.
- Compact Design: Many of the best Galaxy S9 portable chargers feature a sleek and lightweight design, making them easy to carry in a pocket or bag without adding bulk.
- Fast Charging Technology: Advanced portable chargers often incorporate fast charging technology, allowing the Galaxy S9 to recharge quicker than standard chargers, minimizing downtime.
- High Capacity: The best options typically offer high-capacity batteries, ensuring multiple charges for your Galaxy S9, which is especially beneficial during travel or long days out.
- Multiple Ports: Some models come with multiple USB ports, enabling you to charge your Galaxy S9 alongside other devices, such as tablets or headphones, simultaneously.
- Smart Charging Features: Many portable chargers include smart charging technology that detects the optimal charging speed for your Galaxy S9, ensuring safety and efficiency.
Compact design allows the portable charger to fit seamlessly into your daily routine, ensuring you can keep your Galaxy S9 powered up without inconvenience. This portability means that whether you’re commuting, traveling, or out for a day, you can always have a reliable power source at your fingertips.
Fast charging technology is particularly beneficial for Galaxy S9 users who rely on their device for everything from navigation to photography. With the ability to quickly recharge, you can get back to using your phone without the frustration of waiting for it to power up.
Having a high-capacity portable charger means you can recharge your Galaxy S9 multiple times without needing to find an outlet. This is especially useful during long trips or events where access to power may be limited, allowing you to stay connected and capture moments without the worry of running out of battery.
With multiple ports, a portable charger can serve as a central charging hub for all your devices, making it a versatile accessory. This feature is ideal for those who travel with several gadgets, ensuring that everything stays charged without needing to carry multiple chargers.
Smart charging features enhance the safety and efficiency of the charging process, protecting your Galaxy S9 from overcharging or overheating. This technology helps in maximizing the lifespan of your battery while ensuring that it charges as quickly and safely as possible.
What Brands Are Renowned for Quality Galaxy S9 Portable Chargers?
Several brands are renowned for producing quality portable chargers suitable for the Galaxy S9:
- Anker: Anker is well-known for its reliable and high-capacity portable chargers, offering models like the PowerCore series that provide fast charging capabilities and multiple device compatibility. Their chargers often feature PowerIQ technology, which intelligently detects your device to deliver optimal charging speeds, ensuring your Galaxy S9 powers up quickly and safely.
- RAVPower: RAVPower offers a range of portable chargers that cater to the needs of Galaxy S9 users, focusing on high capacity and rapid charging. Their products often come equipped with multiple ports, allowing you to charge several devices at once, and include advanced safety features to protect against overheating and overcharging.
- Zendure: Zendure is recognized for its durable and stylish portable chargers, with models like the A-Series providing excellent performance for Galaxy S9 users. These chargers are designed to withstand rough conditions, making them ideal for travel, and they also support quick charging, ensuring your device gets the power it needs when you’re on the go.
- Aukey: Aukey specializes in affordable yet efficient portable chargers, offering compact designs that make them easy to carry. Their chargers often feature built-in safety mechanisms and Quick Charge technology, which is beneficial for quickly replenishing the Galaxy S9’s battery during busy days.
- Samsung: As the manufacturer of the Galaxy S9, Samsung also offers portable chargers that are designed specifically for their devices. Their power banks typically support both wired and wireless charging options, ensuring seamless compatibility and optimal charging performance for the Galaxy S9.
How Should You Choose the Right Portable Charger for Your Galaxy S9?
Choosing the right portable charger for your Galaxy S9 involves considering several important factors to ensure compatibility and efficiency.
- Capacity: Look for chargers with a capacity of at least 10,000mAh to provide multiple charges for your Galaxy S9.
- Output Power: Select a charger with a minimum output of 2.0A to ensure fast charging capabilities.
- Size and Weight: Consider the portability aspect; a compact and lightweight charger will be easier to carry around.
- Charging Ports: Opt for a charger with multiple USB ports if you need to charge multiple devices simultaneously.
- Safety Features: Ensure the charger has built-in safety features like overcharge protection and short-circuit prevention for safe usage.
Capacity: A portable charger with a higher capacity, measured in milliampere-hours (mAh), will store more energy. For the Galaxy S9, which has a battery capacity of 3,000mAh, a charger with at least 10,000mAh can provide two to three full charges, making it ideal for travel or extended use without access to a wall outlet.
Output Power: The charging speed is influenced by the output power of the charger, measured in amperes (A). A charger that offers at least 2.0A output will ensure that your Galaxy S9 charges quickly, reducing the time you have to wait before you can use your device again.
Size and Weight: The convenience of a portable charger is enhanced by its size and weight. A lightweight and compact design allows for easy transport, making it less cumbersome to carry in a bag or pocket, especially during travel or daily commutes.
Charging Ports: If you frequently need to charge multiple devices, a portable charger with multiple output ports can be beneficial. This feature allows you to charge your Galaxy S9 along with other devices like tablets or wearables, making it versatile for different usage scenarios.
Safety Features: Safety should be a top priority when selecting a portable charger. Look for features such as overcharge protection, short-circuit prevention, and temperature control, which help prevent damage to your devices and ensure safe charging practices.
What User Feedback and Reviews Highlight the Best Galaxy S9 Portable Chargers?
User feedback and reviews highlight several key features and performance aspects of the best Galaxy S9 portable chargers:
- Anker PowerCore 10000: This compact charger is praised for its high capacity and lightweight design, making it easy to carry. Users appreciate its ability to charge the Galaxy S9 multiple times on a single charge, and its PowerIQ technology ensures fast charging speeds tailored to the device’s needs.
- RAVPower 26800mAh Portable Charger: Known for its massive capacity, this charger can charge the Galaxy S9 several times before needing to be recharged itself. Reviewers often highlight its dual USB ports that allow simultaneous charging of two devices, as well as its high-speed charging capabilities through Quick Charge technology.
- AUKEY 20000mAh Power Bank: Users frequently commend this power bank for its solid build quality and efficient charging performance. It features both USB-A and USB-C outputs, enabling fast charging for the Galaxy S9 and other compatible devices, with a high capacity that provides ample power for extended use.
- Zendure A2 Portable Charger: This charger is often noted for its durability and sleek design, making it a popular choice among users who value aesthetics alongside functionality. Its ability to withstand drops and offer consistent power delivery makes it a reliable companion for the Galaxy S9, with users reporting quick charging times.
- iWalk Mini Portable Charger: Highly rated for its ultra-compact size, this charger is ideal for on-the-go users who need a lightweight solution. Reviewers appreciate its built-in cables, which eliminate the need to carry separate charging cords, and its compatibility with the Galaxy S9 for effective charging without hassle.