charmast C2065 20,000mAh Portable Charger with Built-In Cables, 22.5W

Built-in charging cables and a digital battery display make it easier to power devices on the go and see how much charge remains. The 20,000mAh capacity and multiple outputs suit days when you need to charge more than one device. Choose it for cable convenience and shared charging, a smaller power bank may suit a lighter, single-device setup.

Tech specs

• Capacity: 20,000mAh
• Maximum output power: 22.5W
• Outputs: Six, for charging multiple devices
• Display: Digital percentage readout
• Built-in cables: USB-C and Micro-USB, plus an iPhone charging cable
• Color: Navy
• Dimensions: 6.3 x 2.85 x 0.75 inches
• Weight: 340 g

The percentage display gives a more precise view of remaining power than a basic set of indicator lights, making it easier to plan when to recharge the bank. Its built-in cables reduce the need to pack separate charging cords, while the 22.5W maximum output supports fast charging for compatible devices. It works with iPhone, Samsung Galaxy, Pixel, iPad, AirPods, Kindle, and many other phones, earbuds, and tablets.

Best use cases

For travel, commuting, or a full day away from an outlet, the 20,000mAh capacity provides a substantial reserve in a portable format. Use the built-in cables for a quick phone top-up, or connect multiple devices when traveling with a tablet, earbuds, or other personal electronics. The six outputs are useful when several devices need power at the same time, rather than taking turns on a single connection. For air travel, carry the power bank in carry-on luggage, not checked baggage.

Buyers often appreciate the travel-friendly design, charging options, and ability to power several devices before recharging the bank. Feedback on charging speed is mixed, and some buyers report reliability concerns, so individual experiences vary.

In the box

The package includes the 20,000mAh portable charger, a storage bag, and a user manual. For recharging the power bank, the built-in USB-C input takes about six hours, the built-in USB-A input takes about 12 hours. Recharging through USB-C requires a charger block and cable rated at 18W or above. These options make it practical to choose a recharging method that fits your setup.

Practical questions

Can it charge a phone and other devices at the same time? Yes. The six outputs are designed for charging multiple devices at once, including phones, tablets, and earbuds. The actual charging speed can depend on the devices connected.

How do you recharge the power bank? Use its built-in USB-C or USB-A input cable. The stated recharge time is about six hours through USB-C or 12 hours through USB-A, USB-C recharging requires an 18W-or-higher charger block and cable.

Can you bring it on a flight? The manufacturer says to pack the power bank in carry-on luggage. It should not go in checked baggage.

Should you buy it?

The charmast C2065 is suited to travelers and everyday multi-device users who want a generous 20,000mAh reserve, built-in cable convenience, and a clear battery percentage display in one pack. Its combination of several outputs and compatibility with common phones and tablets makes it a practical choice when charging flexibility matters more than carrying the smallest possible power bank.