High-capacity premium-quality external power bank 20000 mAh 20 W with USB-C PD and USB-A QC white A1689H21 Anker

Short description

This is a compact premium-class high-capacity external power bank — 20000 mAh 20 W with USB-C PD and USB-A QC, white A1689H21 Anker. It combines advanced fast-charging technology with reliable performance and a clean modern design, ensuring a stable energy reserve for everyday use and travel. The power bank delivers fast, safe and efficient charging for smartphones, tablets and other USB devices.

Key features

• Large 20000 mAh capacity provides multiple full charges for smartphones and other devices.

• Maximum output power 20 W with USB-C PD and USB-A QC fast-charging support.

• Dual-port configuration allows charging two devices simultaneously.

• Two-way fast charging via USB-C PD speeds up recharging the power bank itself.

• Premium white casing made of durable, wear-resistant materials.

• Full protection suite against overvoltage, overheating, overcurrent and short circuits.

• Wide compatibility with USB-C and USB-A devices — phones, tablets, accessories.

• Stable performance under load and excellent energy efficiency.

• Ideal for travel, work outside the office and long, active days.

Technical specifications

• Capacity: 20000 mAh

• Battery energy: approx. 74 Wh

• Maximum output power: 20 W

• USB-C PD output: up to 20 W

• USB-A QC output: up to 20 W

• Two-way charging via USB-C

• Color: white

• Material: ABS + polycarbonate

• Model: A1689H21

• Dimensions: 11.99 × 7.34 × 3.14 cm

• Net weight: ~360 g

• Gross weight: ~368 g

Why buy / what makes it different

• Anker A1689H21 offers true high capacity — 20000 mAh allows multiple recharges without needing a wall socket.

• 20 W fast charging with PD/QC protocols ensures efficient and rapid charging for modern devices.

• Durable build, high-quality electronics and stable operation even during prolonged use.

• Ability to charge two devices at the same time increases real-world practicality.

• Perfect companion for travel, commuting, remote work and active daily routines.

Included in the box

• Anker A1689H21 external power bank

• USB-C charging cable

• User manual and safety instructions

Packaging

• Width: 7.34 cm

• Height: 11.99 cm

• Depth: 3.14 cm

• Net weight: 360 g

• Gross weight: 368 g

About the brand

Anker is one of the world’s most recognized energy-solution brands, specializing in power banks, chargers and wireless-charging technologies. The brand focuses on safety, efficiency and durability innovations, creating products that combine modern design, reliable power management and high performance. Anker products are trusted by professionals and everyday users alike for their stability and long-lasting quality.