charmast 20000mAh Portable Charger (22.5W) w/ Built-In Cables

What people love (and don’t love)

What people love

Built-in cables (USB-C, Lightning, mini USB) make it convenient and reduce the need for extra cords.
High 20000mAh capacity with fast 22.5W charging supports multiple devices and long usage.
Sturdy, slim, and compact design suitable for travel and daily carry.
Reliable performance over time with consistent charging and power retention.
Works well with various devices including iPhones, Android phones, tablets, and iPads.

What people don’t love

Some users find it a bit heavy for everyday carry.
Wish it had a built-in plug for wall charging.

Great travel-friendly power bank with built-in cables and fast charging, though a bit heavy for daily use.

Summary based on customer review evidence.

Check price on Amazon

Quick facts

Brand: charmast
Price: USD 31.99
Rating: 4.50 (5685 reviews)

If you’re tired of packing extra cords (or realizing you forgot one at the worst time), the charmast 20000mAh Portable Charger simplifies your everyday carry with built-in USB-C, Lightning, and Micro-USB cables. It’s designed for travel, commutes, and emergency kits—delivering multiple phone recharges from a single compact battery pack.

You can view the current price and full details on Amazon here.

Need speed as well as capacity? With 22.5W PD fast charging, it’s made for quick top-ups when you’re heading to a meeting or boarding a flight. A digital display shows the exact remaining battery percentage, so you can plan recharges confidently instead of guessing from four blinking lights.

It also works as a mini charging hub: with multiple outputs, you can keep a phone, tablet, earbuds, and more powered at the same time—handy for work travel and family trips. The navy finish and included travel pouch make it easy to toss in a backpack or carry-on.

20,000mAh capacity for 3–4 full phone charges—ideal for travel, camping, and emergencies
Built-in USB-C, Lightning, and Micro-USB cables to reduce cable clutter
22.5W PD fast charging for quicker top-ups (up to 50% in 30 minutes per listing)
Digital display shows exact remaining battery percentage (0–100%)
Designed to power multiple devices at once with up to 6 outputs
Compact size (6.3 x 2.85 x 0.75 in) and 12 oz for packable portability

What’s in the box: 20000mAh portable charger, travel pouch, and user manual.