10 Best Power Bank Slim 20000mah Lightweight in the UK 2025
Updated on 02/08/2025
#1
Recommended
22% Off
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- Slim and lightweight design at 0.7 inches thick, making it easy to carry in bags.
- Equipped with two USB-C ports capable of delivering up to 100W power, suitable for charging laptops like MacBook Pro.
- 20000 mAh capacity allows for multiple charges: iPhone 16 Pro up to 100%, Galaxy S20 2.4 times, MacBook Pro 14 inch 0.88 times.
- Features two-way fast charging with USB-C and USB-A ports, plus a low current mode for devices with lower power requirements.
- Includes a USB-C to C fast charging cable and a 24-month warranty for added assurance.
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- Slim and lightweight design at 0.7 inches thick, making it easy to carry in bags.
- Equipped with two USB-C ports capable of delivering up to 100W power, suitable for charging laptops like MacBook Pro.
- 20000 mAh capacity allows for multiple charges: iPhone 16 Pro up to 100%, Galaxy S20 2.4 times, MacBook Pro 14 inch 0.88 times.
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#2
Value for Money
19% Off
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- Safe and reliable charging with over 38 million global users, backed by a 3-Year iNiu Care warranty.
- Compact design with 65W output and 20000mAh capacity, utilizing high-density TinyCell and HyperStack technology for portability.
- Charges MacBook Air 13" to 41% and iPhone 15 to 56% in just 25 minutes, supporting Samsung Super Fast Charging 2.0 for dual-device charging.
- Compatible with a wide range of devices, including phones, tablets, AirPods, Bluetooth headphones, fitness trackers, and smartwatches.
- Includes a 20000mAh power bank, a 100W USB-C to USB-C cable, a welcome guide, and lifetime technical support.
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- Safe and reliable charging with over 38 million global users, backed by a 3-Year iNiu Care warranty.
- Compact design with 65W output and 20000mAh capacity, utilizing high-density TinyCell and HyperStack technology for portability.
- Charges MacBook Air 13" to 41% and iPhone 15 to 56% in just 25 minutes, supporting Samsung Super Fast Charging 2.0 for dual-device charging.
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#3
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- Supports PD/QC fast charging for efficient power delivery, charging devices up to 50% in just 30 minutes.
- Features 4 output ports to charge multiple devices at once, with a fast recharging time of only 6 hours using a 9V/2A adapter.
- 20000mAh capacity allows for multiple charges on common devices, including 4-5 times for iPhone 8-15 series and 4 times for Samsung Galaxy series.
- Compact design at 11.2 * 6.95 * 2.75cm and weighing 310g, making it convenient for travel and easy to carry.
- LED display shows battery status clearly, ranging from 0 to 100% for easy monitoring.
- Airline-approved safety features protect against overcharge, overvoltage, overcurrent, short-circuits, and overtemperature.
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- Supports PD/QC fast charging for efficient power delivery, charging devices up to 50% in just 30 minutes.
- Features 4 output ports to charge multiple devices at once, with a fast recharging time of only 6 hours using a 9V/2A adapter.
- 20000mAh capacity allows for multiple charges on common devices, including 4-5 times for iPhone 8-15 series and 4 times for Samsung Galaxy series.
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#4
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- 26800mAh capacity provides multiple charges for phones and tablets, capable of charging an iPhone 7 up to 8.5 times and a Galaxy S8 up to 5 times.
- Bidirectional USB Type-C port supports fast charging and recharging, with a full recharge time of around 9 hours using a Type-C cable.
- Equipped with 3 input options (Micro USB, iOS, Type-C) and 4 USB output ports (1 USB-C and 3 USB-A) for optimal compatibility and charging speeds.
- Features a Smart & Safety System with LED indicators for battery level, built with a reliable lithium-polymer battery that supports various safety protections against overcharging and short circuits.
- Ultra-slim design measuring 162x91.8x15.5mm and weighing 338g for easy portability, coated with a rubber surface for protection and comfortable grip.
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- 26800mAh capacity provides multiple charges for phones and tablets, capable of charging an iPhone 7 up to 8.5 times and a Galaxy S8 up to 5 times.
- Bidirectional USB Type-C port supports fast charging and recharging, with a full recharge time of around 9 hours using a Type-C cable.
- Equipped with 3 input options (Micro USB, iOS, Type-C) and 4 USB output ports (1 USB-C and 3 USB-A) for optimal compatibility and charging speeds.
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#5
24% Off
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- Lightweight and compact design measuring 4×2.8×1 inches and weighing only 11oz for easy portability.
- Includes a built-in USB-C cable compatible with iPhone 15/16, Samsung, and other Android devices, eliminating the need for extra cords.
- Features an accurate LED digital display, providing a clear indication of remaining power to avoid missing charging opportunities.
- Can be fully recharged in approximately 7 hours when paired with a 22.5W USB-C Power Delivery charger (not included).
- Equipped with a 15-layer protection system to ensure safety with high-voltage protection, current regulation, and temperature control.
- Package includes 20000mAh power bank, USB-C cable, and user manual.
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- Lightweight and compact design measuring 4×2.8×1 inches and weighing only 11oz for easy portability.
- Includes a built-in USB-C cable compatible with iPhone 15/16, Samsung, and other Android devices, eliminating the need for extra cords.
- Features an accurate LED digital display, providing a clear indication of remaining power to avoid missing charging opportunities.
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#6
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- 20,000mAh capacity offers multiple charges for devices, including 3.6 charges for iPhone 15 and 2.9 charges for Samsung Galaxy S23 Ultra.
- USB-C port enables bi-directional 15W charging, allowing simultaneous charging of two devices.
- Equipped with PowerIQ and VoltageBoost technology for efficient and safe charging, including a low-power trickle-charging mode.
- Recharge the power bank through either USB-C or Micro USB ports, achieving a full charge in approximately 9 hours with a compatible charger.
- Includes Anker 325 Power Bank (PowerCore 20K), USB-C cable, welcome guide, and an 18-month warranty.
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- 20,000mAh capacity offers multiple charges for devices, including 3.6 charges for iPhone 15 and 2.9 charges for Samsung Galaxy S23 Ultra.
- USB-C port enables bi-directional 15W charging, allowing simultaneous charging of two devices.
- Equipped with PowerIQ and VoltageBoost technology for efficient and safe charging, including a low-power trickle-charging mode.
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#7
13% Off
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- Slim portable charger with a 20000mAh capacity includes 3 output cables and 1 fast-charging input cable for charging various devices like iPhones, Samsung phones, and Micro USB devices.
- Supports fast charging at QC4.0 (22.5W) and PD (20W), capable of charging phones up to 60% in 30 minutes and powering up to 4 devices simultaneously; features an LED display for battery level monitoring.
- Compact design with a capacity allowing multiple charges: 3.75 charges for iPhone 15 Pro Max, 1.5 charges for iPad, 2.4 charges for Samsung Galaxy S23 Ultra, and more; can also charge low current devices.
- Rechargeable in 5.5 hours via built-in USB-C cable (18W) or USB-C input, with an alternative USB cable option for a full recharge in 11 hours (10W).
- Meets strict aviation safety standards with built-in protections against overcharge, overvoltage, overcurrent, short-circuits, and over-temperature, ensuring safe operation.
- Versatile charging solution for small devices including MP3 players, cameras, AirPods, and sports watches.
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- Slim portable charger with a 20000mAh capacity includes 3 output cables and 1 fast-charging input cable for charging various devices like iPhones, Samsung phones, and Micro USB devices.
- Supports fast charging at QC4.0 (22.5W) and PD (20W), capable of charging phones up to 60% in 30 minutes and powering up to 4 devices simultaneously; features an LED display for battery level monitoring.
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#8
30% Off
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- Built-in Micro, Type C, Apple, and USB A cables, compatible with various smart devices including iPhones and Samsung Galaxy models.
- Charges up to 5 devices at once with maximum output of 5V/2.4A per port.
- Compact design with anti-slip surface and adjustable strap for easy portability.
- Ideal for travel, can be conveniently attached to bags for quick access.
- Includes built-in safeguards to protect against current overload, overheating, and overcharging.
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- Built-in Micro, Type C, Apple, and USB A cables, compatible with various smart devices including iPhones and Samsung Galaxy models.
- Charges up to 5 devices at once with maximum output of 5V/2.4A per port.
- Compact design with anti-slip surface and adjustable strap for easy portability.
- Ideal for travel, can be conveniently attached to bags for quick access.
- Includes built-in safeguards to protect against current overload, overheating, and overcharging.
#9
5% Off
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- Power bank features built-in cables for Micro USB, USB-C, and iPhone, eliminating the need for additional charging cables.
- Supports 20W PD fast charging for quick power replenishment with high-speed output options.
- Equipped with multiple outputs, including three built-in cables and two USB-A ports for versatile charging capabilities.
- Includes an LED digital display for accurate power level indication.
- Offers a high capacity of 20000mAh, sufficient for charging smartphones, tablets, and other USB devices multiple times.
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- Power bank features built-in cables for Micro USB, USB-C, and iPhone, eliminating the need for additional charging cables.
- Supports 20W PD fast charging for quick power replenishment with high-speed output options.
- Equipped with multiple outputs, including three built-in cables and two USB-A ports for versatile charging capabilities.
- Includes an LED digital display for accurate power level indication.
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#10
26% Off
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- Industry-leading safety with over 38 million users relying on high-grade materials and a 3-Year warranty.
- Built-in USB-C cable allows for easy charging of devices without the need for extra wires.
- Fast charging capability, charging iPhone 15 to 65% in just 25 minutes with PD 20W technology.
- Compact design at 10,000mAh, 25% smaller and 15% lighter than comparable models, ensuring portability.
- Innovative power indicator for real-time battery status updates.
- Includes a portable power bank and user manual, backed by a 3-year warranty for quality assurance.
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- Industry-leading safety with over 38 million users relying on high-grade materials and a 3-Year warranty.
- Built-in USB-C cable allows for easy charging of devices without the need for extra wires.
- Fast charging capability, charging iPhone 15 to 65% in just 25 minutes with PD 20W technology.
- Compact design at 10,000mAh, 25% smaller and 15% lighter than comparable models, ensuring portability.
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