Best Power Banks for Samsung Phones in 2025

Key Considerations for Choosing a Power Bank for Samsung Phones in the UK

Samsung Galaxy phones (like the S25 series or Z Fold) rely on USB-C with Power Delivery (PD) 3.0 and Programmable Power Supply (PPS) for optimal fast charging—up to 25W for most models or 45W for flagships like the S25 Ultra. Prioritize power banks with at least 20W output (ideally 45W with PPS support) to avoid slow charging. Capacity-wise, 10,000mAh suits daily top-ups (2 full charges for a 5,000mAh battery), while 20,000mAh+ is better for travel. All recommendations below are widely available in the UK via Amazon, Argos, Currys, or brand sites, with strong user ratings (4.5+ stars) and safety certifications (e.g., CE for UK standards). Prices are approximate as of October 2025 and can fluctuate.

1. Anker Nano Power Bank (10,000mAh) – Best Overall Compact Charger

4.6 out of 5 Ratings

The Anker Nano stands out for its pocket-friendly design and seamless integration with Samsung’s USB-C ecosystem. It’s a go-to for daily commutes or quick top-ups, delivering solid performance without bulk.

• Capacity: 10,000mAh (enough for 1.5–2 full charges on a Galaxy S25)
• Max Output: 30W PD (supports PPS for up to 45% charge in 30 minutes)
• Ports: Built-in USB-C cable, 1x USB-C, 1x USB-A
• Price: Around $30
• Why for Samsung?: Tested on Galaxy S23/S24 series, it enables Super Fast Charging and recharges itself in about 2 hours via PD.
• Pros: Ultra-portable, durable build; Cons: No wireless option.

2. INIU Portable Charger (10,000mAh) – Best Budget Pick

4.6 out of 5 Ratings

Affordable doesn’t mean sacrificing speed— the INIU shines as a value champ, perfect for Samsung owners on a tight budget who need reliable fast charging for the Galaxy A-series or flagships.

• Capacity: 10,000mAh (1–2 full charges)
• Max Output: 22.5W PD/QC (up to 70% in 30 minutes on S25 Ultra)
• Ports: 1x USB-C, 2x USB-A
• Price: Under $20
• Why for Samsung?: Broad compatibility with PD 3.0 and QC 4.0, excelling in tests on older and newer Galaxy models like the S10 and S25.
• Pros: Includes travel pouch and cable; slim profile; Cons: Slightly slower than premium rivals.

3. UGREEN Nexode 20,000mAh 130W – Best for High-Capacity Power Users

4.5 out of 5 Ratings

For heavy users juggling a Galaxy S25 Ultra and accessories, the UGREEN Nexode offers marathon-level endurance with blistering speeds, making it ideal for travel or long days.

• Capacity: 20,000mAh (3–4 full charges)
• Max Output: 130W total (100W per USB-C port with PPS support)
• Ports: 2x USB-C, 1x USB-A
• Price: About $70
• Why for Samsung?: Handles multiple Galaxy devices simultaneously at full Super Fast Charging speeds, with quick recharges in under 2 hours.
• Pros: Versatile for laptops too; LED display; Cons: Bulkier than slims.

4. Baseus (25,000mAh) – Best Slim Design

4.4 out of 5 Ratings

The Baseus Blade 2 is a sleek powerhouse that slips into tight pockets, delivering efficient charging for Samsung’s foldables like the Z Flip 6 without the heft.

• Capacity: 12,000mAh (2 full charges)
• Max Output: 65W PD/PPS
• Ports: 2x USB-C
• Price: Around $80
• Why for Samsung?: Optimized for Galaxy S-series with PPS for 45W charging; tested to top up S24+ in under an hour.
• Pros: Laptop-friendly output; premium aluminum build; Cons: Higher price for capacity.

5. Belkin Boost Charge 20K – Best for Convenience

4.6 out of 5 Ratings

Belkin’s integrated cable design eliminates cable clutter, making it a hassle-free choice for Samsung users who value plug-and-play simplicity on the go.

• Capacity: 20,000mAh (2.5–3 full charges)
• Max Output: 30W PD
• Ports: Built-in USB-C cable, 1x USB-C, 1x USB-A
• Price: About $50
• Why for Samsung?: Proven on S24 Ultra for near-full charges in 75 minutes, with reliable PPS compatibility.
• Pros: Rugged and drop-proof; multi-device support; Cons: Output caps at 30W for phones.

Why These Stand Out

• Fast Charging Compatibility: All support PPS for Samsung’s Super Fast Charging, ensuring you hit 25W+ speeds without overheating. For example, the Anker Nano delivered 67% to an S25 Ultra in 30 minutes in Independent tests.
• UK-Specific Notes: These are stocked at major retailers like Amazon UK (Prime delivery) and Argos (in-store pickup). Look for CE-marked models to meet UK safety regs. Avoid cheap no-name brands to prevent fire risks.
• Battery Life Math: Real-world efficiency is ~70% due to conversion losses, so a 10,000mAh bank gives ~7,000mAh usable (1.4 full charges for a 5,000mAh Galaxy).

If your Samsung model is mid-range (e.g., A-series at 15-25W), start with the INIU for value. For flagships, go Anker or Samsung for 45W. Check current deals on Amazon UK or Samsung’s site, and always use a quality 5A USB-C cable for peak performance.