The 20,000 power bank that charges your iPad and phone at the same time

You know that moment? You’re on the train, you have one hour left before your deadline, your hotspot is draining your phone, your laptop is at 12% and… of course there’s no power outlet to be found.

That was the moment I decided enough was enough. I was done with small, flimsy power banks that could only charge my phone once. Enter the 20,000mAh dual USB power bank. And trust me — it was literally a game changer.

Why 20,000mAh Really Makes a Difference

Before I had this power bank, I was using one of those standard 10,000mAh models. Fine for a quick day, but definitely not built for people like me — someone who works on the go, doesn’t want to be constantly plugged in, and wants to charge multiple devices at once.

With 20,000mAh I can now:

• Fully charge my MacBook Air (that's easily 8,000 to 10,000mAh)

• Then fully charge two more smartphones

• Or for example: my phone three times and my iPad for half

Just for context, the average smartphone has a battery of around 3,000-4,500mAh. So do the math.

💡 Pro tip: Note that the actual output of a power bank is usually slightly lower than the stated capacity (due to energy loss during conversion). But with 20,000mAh you still have more than enough juice.

Dual USB ports = ultimate multitasking

What makes this power bank really special are the dual USB ports. And I don't just mean two ports that charge slowly. No, these are full-fledged outputs that can charge powerfully at the same time, even if you use both ports.

I use it like this:

• During meetings: laptop via USB-C and my work phone via the second USB

• On the road: charging my own phone and my girlfriend's tablet at the same time on the train or plane

• During a lecture: charge the presenter and iPad at the same time without stress

For anyone who works or studies on location: this really makes the difference between working in a streamlined way or constantly frantically checking your battery percentage.

Does it work with all your devices?

Yes, if you pay a little attention. This power bank supports Power Delivery (PD) and Quick Charge (QC) — which means you can charge many devices lightning fast, provided you use the right cable.

✅ Compatible with:

• MacBooks (Air and Pro)

• iPads (with USB-C or Lightning)

• Android phones (Samsung, OnePlus, Pixel etc.)

• iPhones (even older models, as long as you use Lightning)

• Nintendo Switch, e-readers and even some DSLRs

🧩 Please note: the cable you use is at least as important as the power bank itself. For fast charging, you need a USB-C to USB-C or USB-C to Lightning that supports PD.

How portable is 20,000mAh really?

I can hear you thinking: “20,000mAh? That must be a brick.” Surprisingly, it’s not that bad. Most of these power banks are a bit bigger than a smartphone, about 15 x 7 x 2.5 cm, and weigh around 350 grams. So:

• Fits nicely in your backpack or work bag

• In my case even in the inside pocket of my raincoat

• You can feel it, but it's not impractically heavy

Build quality is also a big plus. Mine has survived multiple coffee table knocks and a fall into a gravel path — without cracks or hassle.

One week of travel, zero stress

Let me tell you about that one week I went to Berlin for work. I had five days of meetings, co-working and sightseeing planned. No power outlets in sight. Thanks to this power bank:

• I had 4-5 hours of extra work time on my laptop every day

• My girlfriend and I were both able to charge our phones while we were cruising the city

• I could even use my iPad in the evening to read something without having to sit near an electrical outlet

I literally felt freer. No more “do I need to charge?” stress. No more hassle with extension cords or fighting for the one free plug in a coffee shop.

Who is this really recommended for?

If you recognize yourself in one of these types, then I say: do it.

• Students who often study or attend lectures on location

• Freelancers working from coffee shops, coworking spaces or even parks

• Travelers and digital nomads who want to stay flexible

• Tech enthusiasts who always have multiple devices with them and don't want to compromise

But also if you just always want to be “safe” in terms of power. Because let's be honest: there is almost nothing more annoying than an empty phone just when you have to check in, navigate or call that one customer.

It's more than just a power bank

You might pay a little more for it than a basic model, but you get a lot more in return. In mobility, in peace of mind, and in efficiency. It’s not a gadget — it’s a tool that literally makes your workday (or vacation) better.

🛍️ When purchasing, please note:

• Support for PD and QC (preferably both)

• At least one USB-C port

• Build quality and size (check reviews!)

• Cables included (saves hassle)

🔗 For example, check out these power banks on glode.nl that meet these specs. They have a nice selection with good value for money.

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