Running out of charge is the worst. Your phone dies, your smartwatch buzzes a low-battery alert, and your earbuds are already flat. That’s where a Cygnett 20,000mAh Power Bank comes in clutch.
These high-capacity portable chargers are built for your day, your night, and everything in between. Whether you're charging your iPhone, Samsung Galaxy, iPad, or even your MacBook, you’re covered.
With USB-C fast charging, multiple charging ports, and smart features like digital displays and pass-through charging, they’re made for serious power users. You can even throw them in your bag on your next flight. That’s power you can rely on.
Is a 20000mAh Power Bank overkill?
Not even close. A 20000mAh Power Bank is ideal for long weekends away, festivals, work trips, long-haul flights, and power outages. It’s perfect if you use multiple devices daily. Think smartphones, tablets, smartwatches, AirPods, and when using a powerful 20000mAh Power Bank even USB-C laptops like the latest MacBook models.
It’s also a great pick if you’re constantly on the move with no time to stop and recharge. And for families? You’ll love having one Power Bank that can top up a few devices at once.
How much can a 20000mAh Power Bank charge?
With 20,000mAh battery capacity and up to 118W of USB-C output, you can expect:
- Around 3-4 full charges for your smartphone (based on iPhone 17 Pro Max)
- Up to 4 full charges for Android phones
- Up to 2 full recharges for an iPad Air
- Up to 1 full recharge for a MacBook Air
- Up to 70% recharge for a MacBook Pro 14" model (varies by usage and screen brightness)
- Around 2 full recharges for gaming consoles like the Nintendo Switch (depending on the model and usage)
- Multiple top-ups for Bluetooth earbuds and Apple Watches
How fast does a 20000mAh Power Bank charge?
It depends on your device and your Power Bank’s output (measured in watts).
Mobile phones usually need around 18W to 30W for fast charging, while tablets and iPads often perform best around 30W to 45W. USB-C laptops like a MacBook Air typically need at least 45W, and a MacBook Pro might require 60W or more for solid performance.
For the fastest and most reliable charging, look for a Power Bank with a higher wattage. At Cygnett, we have 20000mAh phone and laptop Power Banks with USB-C ports that offer up to 118W. With this, you’ll cover everything from Android devices to high-powered laptops.
Picking the Power Bank that fits your life
So, what should you look for in a 20000mAh Power Bank? Here’s a quick guide:
- Multi-device charging: Look for Power Banks with a mix of USB-C and USB-A ports so you can charge older and newer devices together
- Battery tracking: A digital display makes it easy to see how much battery you’ve got left
- Size and feel: Some Power Banks are slim and travel-friendly, while others are chunkier but pack more features
- Charging while recharging: Pass-through charging is great when you need to power your phone while topping up the Power Bank
- In-the-box extras: Many Cygnett Power Banks include a USB-C cable, which saves you the hassle of buying them separately.
- Solar charging: Need off-grid power? Our ChargeUp Outback 20,000 mAh Outdoor Solar Power Bank comes with a built-in solar panel, so you can charge your devices with sunlight wherever you are.
How long does it take to recharge?
This depends on your charger and cable and the input of the Power Bank you are using. With a powerful USB-C wall charger and USB-C to USB-C cable, most of our 20000mAh Power Banks can fully recharge in around 2 to 3 hours. If you’re using a standard phone charger or an older USB-A adapter, it’ll take longer.
Want to stay topped up during a recharge? Some models support pass-through charging, so you can keep using the Power Bank while it's plugged in.
Can I bring a 20000mAh Power Bank on a plane in Australia?
Yes, you can. Most airlines in Australia follow international guidelines that allow Power Banks up to 100Wh in carry-on baggage. A 20,000mAh Power Bank is around 74Wh, so you’re all good.
But here’s the tip. Always pack your Power Bank in your carry-on, never in checked luggage. And double-check the airline’s policy before you fly, as rules can vary across carriers and can change all of a sudden.
Plus, many airlines now ban the use of Power Banks in-flight. And not all aeroplanes have charging ports. If you don’t want to get caught with a dead battery before landing, make sure to fully top up all your devices prior to boarding or before leaving home.
Safe charging without the stress
While Cygnett Power Banks are equipped with safety features, it doesn't hurt to take some safety precautions. Here’s how to use your Power Bank safely and efficiently:
- Only use a wall charger that matches the Power Bank’s input wattage for faster, safer recharging
- Unplug once fully charged to avoid unnecessary heat build-up
- Don’t stack the Power Bank between soft items like pillows or clothes while charging. It needs airflow to stay cool.
- Avoid using all ports at once for extended periods, as this can raise internal temperature
- Store it in a cool, dry place and keep it partially charged (around 50%) when not in use for long periods
- Avoid drop damage or crushing, especially while travelling with it in a packed bag
- Never attempt to open or tamper with the Power Bank’s casing or internal battery
- Do not let children use Power Banks
- Do not expose to high temperatures, direct sunlight, or open flames.
Never run flat again
Own every moment without worrying about a low battery. Cygnett’s 20000mAh portable Power Banks give you serious power, all-day confidence, and smart charging that helps you stay in control. Grab one now and power through work, weekends, and everything in between without missing a beat.
Looking for something smaller? We’ve got 5000mAh and 10000mAh Power Banks that are perfect for quick top-ups. Want wireless charging convenience? We’ve got magnetic wireless chargers and MagSafe-compatible wireless Power Banks, too.
And there’s more. Complete your setup with our wall chargers, charging cables, and in-car chargers. Checkout online or grab them in-store at leading tech retailers across Australia and beyond. Wherever you’re headed, Cygnett keeps you charged and ready.
