In today’s fast-paced world, staying connected is more important than ever, and nothing is more frustrating than running out of battery when you need your devices the most. Whether you’re navigating Tokyoâs bustling streets, capturing scenic views in Hokkaido, or simply commuting to work, a reliable portable power bank is essential for keeping your smartphone, tablet, or other gadgets fully charged.
In 2025, Japan continues to lead in innovative technology, offering a wide array of high-performance power banks with features like ultra-fast charging, sleek designs, and eco-friendly options. With countless choices on the market, finding the perfect power bank can be overwhelming. To make your search easier, we’ve curated a list of the best portable power banks in Japan this yearâdesigned to keep you powered up wherever life takes you.
If you are in a hurry, you can buy the best suitable item based on your budget, preference, and our recommendation given below. Based on our study, we concluded that-
â The Overall Best Product â Anker Power Bank
â The Editorâs Choice â Anker PowerCore Essential 20000Â
â The Best Value Product â UGREEN Portable Power BankÂ
Here are some of the best portable power banks available in Japan, combining convenience with thoughtful choices.
1. Anker Power Bank
2. Anker PowerCore Essential 20000Â
3. Tikeyo Power BankÂ
4. CIO SMARTCOBY Pro SLIMÂ
5. Philips Portable Power BankÂ
6. UGREEN Portable Power BankÂ
Letâs jump into the detailed information of each item listed above-
| Brand | Anker |
| Model | A1257 |
| Battery Capacity | 10,000mAh |
| Number of ports | 3 (2 USB-C and 1 USB-A) |
| Compatible Device | iPhone, Android, iPad and Other Devices |
| Dimensions | 11.03 x 7.04 x 1.64 cm |
| Weight | 200 g |
| Batteries Include | 1 Lithium Polymer battey |
The Anker Power Bank is a game-changer in portable charging, delivering a perfect balance between compact size and powerful performance. Despite its slim design, which measures just 0.6 inches thick, this power bank packs a robust 10,000 mAh battery capacity. It’s enough to charge an iPhone 15 about two times or a Galaxy S24 nearly 1.8 times, making it ideal for those who need reliable power on the go without carrying bulky gadgets.
One of the standout features of this power bank is its impressive 22.5W rapid charging capability, allowing you to quickly charge multiple devices simultaneously through its two USB-C and one USB-A output ports. The inclusion of a USB-C to USB-C cable with connectors that clip into a housing doubles as a carry strap, offering both convenience and portability. Additionally, its sleek low-profile design ensures it easily fits into pockets, purses, or small bags, making it an excellent choice for everyday carry.
Key Features:
- Compact with High Capacity: 10,000 mAh battery capacity for multiple charges on various devices
- Rapid Charging: Maximum 22.5W output for fast charging
- Multi-Device Support: 2 USB-C and 1 USB-A ports for simultaneous charging of up to three devices
- Ultra-Thin Design: Just 0.6 inches thick, perfect for slipping into pockets or bags
- Integrated Carry Strap: Doubles as a housing for the USB-C cable
- Battery Display: Large, clear font shows remaining charge at a glance
The Anker Power Bank stands out as one of the best portable power banks in Japan in 2025 due to its thoughtful design, versatile charging capabilities, and impressive performance. Whether you’re a tech enthusiast, a frequent traveler, or simply someone who wants to stay connected, this power bank delivers on every front, making it a must-have accessory for your daily life.
| Brand | Anker |
| Model | A1268 |
| Battery Capacity | 20,000mAh |
| Number of ports | 2Â Â |
| Compatible Device | iPhone, iPad and Android |
| Dimensions | 15.8 x 7.42 x 1.92 cm |
| Weight | 343 g |
| Batteries Include | 1 Lithium Polymer battey |
The Anker PowerCore Essential 20000 is a powerhouse of portable energy, offering a substantial 20,000 mAh capacity. With this impressive battery, you can fully charge an iPhone 15 or Galaxy S24 about four times or power up an iPad mini 6 twice. Its large capacity makes it an excellent choice not only for daily use but also for emergencies when staying connected is crucial. Despite its robust power, it remains compact and lightweight, fitting easily into backpacks or travel gear for on-the-go convenience.
Equipped with two USB output ports, this power bank allows simultaneous charging of two devices, ensuring you and your gadgets remain powered up. Ankerâs proprietary PowerIQ and VoltageBoost technologies optimize charging speeds, though it doesn’t support Qualcomm Quick Charge. The thoughtful addition of a low-current mode makes it ideal for charging smaller devices like earphones and smartwatches. Additionally, the sleek design, finished with a stain-resistant mesh texture and refined LED indicators, adds a touch of sophistication to your charging gear.
Key Features:
- Super Large Capacity: 20,000 mAh battery for multiple charges, perfect for trips and emergencies
- Dual Device Charging: Two USB output ports for simultaneous charging (15W max output)
- Optimized Charging: PowerIQ and VoltageBoost for fast and efficient charging
- Low Current Mode: Perfect for small devices like earphones and wearables
- Safe & Durable: Multi-layer protection system for long-term, secure usage
- Stylish Design: Stain-resistant mesh finish with clear LED battery indicators
The Anker PowerCore Essential 20000 is a top pick for anyone who needs ultra-high capacity and reliable charging performance. With its robust build, long-lasting battery, and secure charging technology, itâs perfect for frequent travelers, outdoor enthusiasts, and anyone looking for a dependable backup power solution.
| Brand | Tikeyo |
| Model | N13 |
| Battery Capacity | 22,000 mAh |
| Number of ports | 6 |
| Compatible Device | Smartphone |
| Dimensions | 15.2 x 8.6 x 3.2 cm |
| Weight | 250 g |
| Batteries Include | 1 Lithium Polymer battey |
The Tikeyo Power Bank redefines portability with its upgraded 2024 design, combining lightweight construction and massive power capacity. With a whopping 22,000 mAh, it can fully charge your smartphone up to four times, making it ideal for long trips, busy workdays, and unexpected power outages. Its compact form makes it perfect for on-the-go use, whether you’re commuting, traveling for business, or preparing for emergencies.
What sets this power bank apart is its built-in four charging cables, allowing you to power multiple devices simultaneously without carrying extra cords. The latest USB-C technology ensures fast charging, boosting your device’s battery up to 50% in just 30 minutes. Tikeyo’s attention to safety is evident through its PSE-certified safety circuit, providing peace of mind during every charge. An LED display keeps you informed about the remaining battery level, ensuring you’re never caught off guard.
Key Features:
- Massive Capacity: 22,000 mAh to charge smartphones up to four times
- Simultaneous Charging: Built-in cables for powering up to 4 devices at once
- Rapid Charging: USB-C technology for 50% charge in just 30 minutes
- Lightweight & Compact: Easy to carry for travel, commuting, and emergencies
- Safety Assured: PSE-certified safety circuit for reliable charging
- LED Display: Convenient battery level indicator
The Tikeyo Power Bank stands out with its lightweight design and impressive 22,000mAh capacity, making it ideal for professionals and students who need to power multiple devices throughout the day. Its built-in cables and simultaneous charging capabilities make it a travel-friendly choice for those who value convenience on the go.
| Brand | CIO |
| Model | CIO-MB35W2C1A-10000-S-BK |
| Battery Capacity | 10,000 mAh |
| Number of ports | 3 |
| Compatible Device | Smartphone, Tablet, Laptop, Smartwatch, iPhone |
| Dimensions | 13 x 9.7 x 3.3 cm |
| Weight | 210 g |
| Country of Origin | China |
The CIO SMARTCOBY Pro SLIM is one of the thinnest and most portable power banks in its category, boasting a mere 0.6-inch thickness and a robust 10,000 mAh capacity. Despite its ultra-slim design, this power bank delivers up to 35W output, allowing it to charge a wide range of devices, including smartphones, tablets, and even some laptops like the MacBook Air. Its lightweight, card-sized build makes it perfect for travel, business trips, or everyday commuting, easily fitting into small bags or pouches.
Equipped with three charging portsâtwo USB-C and one USB-Aâthe SMARTCOBY Pro SLIM provides exceptional versatility for simultaneous device charging. The pass-through function enables users to charge the power bank itself while powering other devices, making it highly efficient for environments with limited outlets. Its rapid charging capability, including PPS support for Galaxy smartphones, ensures a full charge in just 90 minutes, saving precious time on busy days.
Key Features:
- Ultra-Slim Design: Only 0.6 inches thick, perfect for portability
- High Power Output: 35W compatibility for fast charging of smartphones, tablets, and laptops
- 10,000 mAh Capacity: Charge smartphones 1.5 times or more, and tablets or PCs 0.5 times
- Three Charging Ports: Dual USB-C and one USB-A for simultaneous charging
- Pass-Through Charging: Charge the power bank and devices simultaneously
- Scratch-Resistant Build: Textured surface prevents visible wear and tear
- Digital Charge Indicator: Clear display with animated visuals for remaining battery levels
The CIO SMARTCOBY Pro SLIM is perfect for minimalist tech enthusiasts who prioritize portability without compromising power. Its ultra-thin design and 35W fast charging capability make it an excellent choice for commuters, business travelers, and anyone seeking a compact yet powerful power bank for daily use.
| Brand | Philips |
| Model | DLP4350CW |
| Battery Capacity | 10,000 mAh |
| Number of ports | 2 |
| Compatible Device | Smartphone, Tablet |
| Dimensions | 15 x 14.4 x 4.7 cm |
| Weight | 237 g |
| Country of Origin | China |
The Philips Power Bank offers an impressive blend of functionality and convenience, making it a top contender for portable charging needs in 2025. With a built-in Type-C cable and a foldable AC plug, it seamlessly transitions between being a wall charger and a power bank. Its compatibility with international power plugs (including UK, Europe, and Australian adapters) makes it the ideal travel companion for globetrotters. Compact and lightweight, it fits comfortably in your bag and even doubles as a carry strap for added convenience.
One of the standout features of this power bank is its ability to charge up to three devices simultaneously with PD/QC 3.0 rapid charging support and a maximum output of 20W. The pass-through function allows users to charge the power bank itself while powering other devices, adding to its efficiency. The durable, braided Type-C cable design ensures longevity and slip resistance, while the real-time LCD display keeps you informed of battery levels and charging status.
Key Features:
- Dual Functionality: Foldable AC plug lets it function as both a wall charger and portable power bank
- Built-in Durable Type-C Cable: Doubles as a strap for convenient carrying
- Simultaneous Charging: Charge up to three devices with PD/QC 3.0 support
- Pass-Through Charging: Charge devices and the power bank simultaneously
- LCD Display: Real-time updates on battery status and charging progress
- Travel-Ready Design: Compact size and lightweight with international plug compatibility
The Philips Power Bank shines with its built-in Type-C cable, foldable plug, and multi-device charging capabilities, making it a versatile choice for international travelers. Its thoughtful design and pass-through function ensure you stay charged at all times, whether at home, in transit, or abroad.
| Brand | UGREEN |
| Model | PB312 |
| Battery Capacity | 20,000 mAh |
| Number of ports | Â 3 |
| Compatible Device | Smartphone, Tablet, Android, iPhone, iPad |
| Dimensions | 13.18 x 6.6 x 1.65 cm |
| Weight | 435 g |
| Batteries Include | 2 Lithium Polymer batteries |
The UGREEN Portable Power Bank is a reliable and versatile choice for users seeking high-capacity charging solutions. With a robust 20,000 mAh capacity, it can charge an iPhone 15 Pro up to 4.5 times, a Galaxy S24 Ultra 3 times, and an iPad mini 6 nearly 3 times. Its sleek, lightweight design makes it perfect for travel, work, or everyday use, keeping your devices powered without constantly seeking outlets. The battery level is clearly displayed via an LCD, providing accurate information at a glance.
One of its standout features is the ability to charge up to three devices simultaneously through its combination of two USB-A and one USB-C ports. It supports fast charging protocols like PD, QC, PPS, and FCP, ensuring rapid charging speeds for smartphones, tablets, and other gadgets. The pass-through function lets you charge both the power bank and connected devices simultaneously, while the low-current mode caters to smaller gadgets like earphones and smartwatches, enhancing its versatility.
Key Features:
- Large 20,000 mAh Capacity: Multiple charges for smartphones and tablets
- Fast Charging: 22.5W for USB-A and 20W for USB-C with PD compatibility
- Simultaneous Charging: Charge up to three devices at once
- Pass-Through Function: Charge the power bank and devices simultaneously
- Low Current Mode: Ideal for wearables and smaller electronics
- Clear Battery Display: LCD shows precise battery levels
The UGREEN Portable Power Bank is perfect for tech-savvy users who want flexibility and efficiency. Its multiple fast-charging ports, large 20,000mAh capacity, and pass-through function make it ideal for charging smartphones, tablets, and even laptops simultaneously, making it a powerhouse for busy professionals and gadget lovers alike.
Buying guide for choosing the Best Portable Power Bank in Japan
Selecting the right portable power bank can be challenging with the variety of options available on the market. Whether youâre a traveler, a student, or someone constantly on the go, having a reliable power bank is essential. Hereâs a comprehensive guide to help you make an informed decision and invest wisely.
Battery Capacity Matters
Battery capacity, measured in milliampere-hours (mAh), determines how many times a power bank can recharge your device.
- 10,000 mAh: Ideal for casual users who need to charge a smartphone 1-2 times.
- 20,000 mAh: Suitable for frequent travelers and those with multiple devices. Can charge phones 4-5 times or tablets 2-3 times.
- 30,000+ mAh: Best for heavy users, such as professionals and outdoor enthusiasts who require multiple device charges over several days.
Pro Tip: Always consider your device’s battery size to estimate how often it will be recharged.
Fast Charging Compatibility
Look for power banks that support fast charging protocols such as:
- Power Delivery (PD): Common for iPhones, iPads, and laptops.
- Quick Charge (QC): Great for Android devices.
- PPS (Programmable Power Supply): Efficient for Samsung and modern devices.
These technologies can reduce charging time significantly, which is a lifesaver during busy days.
Number of Output Ports
Choose a power bank with multiple ports if you have several devices:
- Single Port: Basic users
- Two or More Ports: Ideal for charging smartphones, tablets, and accessories simultaneously
Many models now offer USB-C, USB-A, and even built-in cables for convenience.
Portability and Weight
Ensure your power bank is portable enough for your lifestyle.
- Compact (under 10,000 mAh): Lightweight and pocket-friendly
- Mid-sized (10,000-20,000 mAh): Still portable but offers more power
- Large (20,000 mAh+): Heavier but perfect for power-intensive trips
Brand Reputation and Warranty
Invest in reputable brands with a proven track record for quality and reliability. Look for power banks that come with a warranty for peace of mind.
By considering these factors, you’ll be better equipped to select the perfect portable power bank for your needs in Japan in 2025. Investing in a high-quality, feature-rich model will keep your devices powered and your digital life seamless wherever you go.
Conclusion
Choosing the right portable power bank in Japan is all about finding the perfect balance between capacity, charging speed, portability, and features that suit your lifestyle. With advancements in technology, today’s power banks offer impressive charging capabilities, sleek designs, and essential safety features to keep your devices powered on the go. Whether you’re a busy professional, frequent traveler, or casual user, investing in a reliable power bank ensures you’ll never be caught with a dead battery. Use our buying guide to make an informed choice and stay connected wherever life takes you.
The information provided in this article has been published after analysis of the available data from different resources. If you have any questions, please do not hesitate to contact us. And, if you are planning to buy any other accessories like wireless earphones or best wireless mouse you can check our Electronics Products and Travel & Outdoor Products category articles on the Sakuron Japan website.
â Our editorial team reviewed this article and approved it according to our editorial policy.
You can also check the Amazon bestseller portable power bank list:
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