If you have ever searched for a power bank for a laptop, you have probably noticed the confusing part: not every big battery pack can actually charge a MacBook, Windows laptop, Nintendo Switch or phone properly. Some power banks have plenty of capacity but not enough wattage. Others are fast enough for a laptop but too bulky for everyday carry.
That is why the best laptop power banks in Australia are usually not just the biggest ones. The better buys are USB-C power banks with enough output for laptops, enough capacity for travel, and enough ports to charge more than one device when you are out of the house.
In this guide, we are focusing on practical Amazon Australia options and the specs that matter most when you want one charger for a laptop, phone and handheld gaming device.
Quick Answer: What Power Bank Do You Need For A Laptop?
For many laptop users, the practical sweet spot is a 20,000mAh USB-C PD power bank with around 65W or more of single-port USB-C output. That is enough for many ultraportables and MacBook Air-style laptops, while larger MacBook Pro, gaming and workstation laptops may need 96W, 100W, 140W or higher for best results.
If you want a more laptop-friendly option, look for:
- 65W single-port USB-C output or higher for many laptops and MacBook Air-style devices.
- 87W to 100W+ single-port USB-C output if you want more headroom for larger laptops, faster charging or multi-device use.
- 20,000mAh capacity for a good balance of size and battery life.
- USB-C Power Delivery, often shortened to USB-C PD.
- A screen or percentage display so you know how much battery is left.
- At least two ports if you want to charge a laptop and phone at the same time.
A small 10,000mAh power bank can still be great for phones, earbuds, handheld gaming and emergency top-ups, but it is usually not the first choice if your main goal is charging a laptop.
Best Overall Pick: Anker 20,000mAh 87W Power Bank
The Anker 20,000mAh 87W Power Bank on Amazon Australia is one of the more interesting options right now because it hits the laptop-friendly sweet spot without going into oversized travel-station territory.
The Amazon Australia listing describes it as a 20,000mAh portable charger with a built-in USB-C cable, two USB-C connections and one USB-A port. It has up to 87W total output, with up to 65W available to a single device, which is the key detail for laptop buyers. It is also positioned for MacBook, iPhone, Samsung, Nintendo Switch and other USB-C devices.
When checked for this article, the Amazon listing displayed strong buyer-activity signals. Amazon activity badges, prices and stock can change constantly, so treat that as a snapshot rather than a permanent product claim.
Why It Makes Sense
- 20,000mAh capacity is large enough for laptop top-ups and multi-device days.
- 65W single-port USB-C output is the important laptop-charging detail.
- Built-in USB-C cable means one less cable to forget.
- Digital display is helpful for checking remaining battery.
- Works as a practical all-rounder for laptop, phone, tablet and Switch users.
Best for: people who want one portable charger for a MacBook Air, USB-C laptop, iPhone, Samsung phone, tablet or Nintendo Switch.
Watch out for: if you have a power-hungry gaming laptop or large workstation laptop, check the wattage on your original charger first. Some laptops may need more than 65W to charge properly while in use, and the number to compare is the power bank’s single-port USB-C output, not just its total output across all ports.
Best High-Power Upgrade: Anker Prime 20,000mAh 200W Power Bank
If you want more power than a standard 65W laptop power bank, the Anker Prime 20,000mAh 200W Power Bank is the kind of model to compare. It is aimed at people who want a higher-output portable laptop charger with a smart display and multiple ports.
This is likely more power bank than many phone-only users need, but it makes sense if you regularly carry a laptop, tablet and phone together. It is also the type of product to consider if you want faster charging or more headroom for larger USB-C devices.
Best for: frequent travellers, remote workers, students carrying multiple devices, and anyone who wants more wattage than a basic 65W pack.
Watch out for: higher-output models usually cost more and stock can vary by retailer. If you only need phone and original Nintendo Switch top-ups, a cheaper 20,000mAh model may be enough.
Best Budget Laptop-Style Option: 65W 20,000mAh USB-C Power Banks
If the Anker models are out of your price range, look for a 65W 20,000mAh USB-C power bank from other Amazon Australia brands. For example, listings such as the TOUGH ON 65W 20,000mAh Power Bank and VEEKTOMX 65W Laptop Power Bank show the type of specs worth comparing.
The important thing is not just the brand name. The important thing is whether the listing clearly states USB-C PD, 65W single-port USB-C output and 20,000mAh capacity. If it only says 20,000mAh but has a low output like 18W, 20W or 22.5W, it may be fine for phones but not ideal for laptops.
Best for: shoppers who want laptop-capable wattage at a lower price.
Watch out for: check reviews, warranty, weight and whether the product includes or requires a proper USB-C to USB-C cable.
Best For Phones, Tablets And Emergency Handheld Top-Ups: Lower-Watt 20,000mAh Power Banks
Not every power bank needs to be laptop-first. If you mainly want a portable charger for your iPhone, Samsung phone, iPad, AirPods or light handheld top-ups, a lower-watt 20,000mAh power bank can still be a smart buy.
For example, a UGREEN 20,000mAh Power Bank with 20W USB-C / 22.5W USB-A output is better framed as a phone, tablet and handheld-gaming option rather than a serious laptop charger. It has the capacity people like, but the lower wattage means it is not in the same class as 65W or 87W laptop-focused power banks.
For Nintendo Switch 2, choose a stronger USB-C PD power bank if you want reliable play-and-charge performance. Nintendo Support says commercially available AC adapters should have 54W or higher output, so 20W to 22.5W phone-style power banks are better treated as slower emergency top-up options rather than ideal Switch 2 chargers.
Best for: phones, iPad top-ups, earbuds, light handheld top-ups and everyday emergency charging.
Watch out for: do not assume every 20,000mAh power bank can charge a laptop well. Capacity and wattage are different things.
Power Bank Wattage Guide: What The Numbers Mean
The most common mistake when buying a laptop power bank is looking only at mAh. Capacity matters, but wattage decides how fast and how well the power bank can charge your device.
| Single-port USB-C output | Best for | Laptop use? |
|---|---|---|
| 18W to 22.5W | Phones, earbuds, small accessories | Usually no |
| 30W | Phones, tablets, light top-ups | Limited, only for some small USB-C laptops |
| 45W | Tablets, handheld gaming, some ultraportables | Maybe, but not ideal |
| 65W | Many MacBook Air-style laptops, many USB-C laptops, Steam Deck, tablets, phones | Yes, for many laptops |
| 87W to 100W+ | Larger laptops, faster charging, multi-device charging | Better choice for laptop-heavy users |
If your laptop came with a 65W USB-C charger, a 65W single-port USB-C power bank is the minimum spec you should look at. If your laptop charger is 96W, 100W, 140W or higher, consider a higher-output power bank and check the listing carefully. A power bank can advertise a high total output while still giving less power from one USB-C port.
How Many mAh Do You Need?
For laptops, 20,000mAh is the most practical starting point. It is large enough to be useful but still portable. Smaller 10,000mAh models are easier to carry, but they are usually better for phones and accessories.
| Capacity | Best use | Recommendation |
|---|---|---|
| 5,000mAh | Emergency phone top-ups | Too small for laptop buyers |
| 10,000mAh | Phones, earbuds, light tablet use | Good for everyday carry, not ideal for laptops |
| 20,000mAh | Laptops, handheld gaming, tablets, phones, travel | Best all-round choice |
| 27,000mAh and above | Heavy travel, multiple devices, larger laptops | Great if you accept extra size and weight |
If you fly often, also check the airline and product capacity rules. Many travel-friendly power banks sit below the common 100Wh limit, but you should always confirm the watt-hour rating on the listing or device before flying.
In Australia, CASA says spare batteries and power banks should travel in cabin baggage and should not be placed in checked luggage. Check the Wh rating before flying: under 100Wh is the common travel-friendly range, 100Wh to 160Wh generally requires airline approval, and over 160Wh is prohibited in passenger baggage. If a listing only shows mAh, the basic formula is Wh = V x Ah, or Wh = V x mAh / 1000. Use the voltage printed on the power bank or listing, and do not guess; where possible, rely on the Wh rating printed on the product.
Can A Power Bank Charge A MacBook?
Yes, a power bank can charge many MacBook models, but it needs the right USB-C output. For many MacBook Air users, a 65W USB-C PD power bank is a sensible starting point, but Apple lists different adapter wattages across MacBook Air and MacBook Pro models. Larger MacBook Pro models may be better matched with 96W, 100W, 140W or higher single-port USB-C output, especially if you want to charge while using demanding apps.
The Anker 20,000mAh 87W model is interesting because it is not just a phone power bank. It is clearly positioned as a laptop-capable USB-C charger, with enough single-device output for many common laptop charging scenarios.
Can A Power Bank Charge A Nintendo Switch Or Switch 2?
Yes, a USB-C power bank can charge a Nintendo Switch, and a higher-watt USB-C PD model is useful if you want to keep playing while charging. You do not necessarily need a huge laptop-grade battery for Switch use, but buying a stronger USB-C power bank gives you more flexibility if you also carry a laptop or phone.
If you already own a Switch 2 or are buying accessories for one, a 20,000mAh USB-C PD power bank can be a useful travel accessory. For reliable play-and-charge performance, look for a stronger USB-C PD model rather than assuming a 20W to 22.5W phone-style power bank will be enough in every situation.
What To Check Before Buying A Laptop Power Bank
Before you buy, check these details on the Amazon listing:
- Single-port USB-C output: this is the number that matters most for laptop charging.
- Total output: useful, but it can be split across ports when charging multiple devices.
- USB-C PD support: look for Power Delivery or PD in the listing.
- Cable rating: a weak cable can limit charging speed even if the power bank is powerful.
- Weight: 20,000mAh models are useful, but you will feel them in a smaller bag.
- Display: a percentage screen is better than four small indicator lights.
- Ports: two USB-C ports plus USB-A is useful if you carry old and new cables.
- Reviews: look specifically for laptop, MacBook, Steam Deck, Switch or travel reviews.
Safety note: check current recall notices before buying or using any lithium-ion power bank. The ACCC has warned about power bank fire and burn risks, and Product Safety Australia lists recalled Anker models A1257, A1647, A1681 and A1689. The Anker 20,000mAh 87W model discussed in this article is listed by Anker as model A1383, which is a different model, but shoppers should still confirm the model number on the Amazon listing and on the device before purchase or use.
Best Power Bank Picks To Compare
| Product type | Good option to check | Best for |
|---|---|---|
| Best overall laptop-friendly pick | Anker 20,000mAh 87W Power Bank | MacBook Air, USB-C laptops, phone, tablet, Switch |
| High-power upgrade | Anker Prime 20,000mAh Power Bank | Frequent travellers and multi-device users |
| Budget 65W alternative | TOUGH ON 65W 20,000mAh Power Bank | Shoppers comparing cheaper laptop-capable options |
| Another 65W laptop-style option | VEEKTOMX 65W Laptop Power Bank | MacBook, Steam Deck, tablet and phone users |
| Phone, tablet and emergency top-up pick | UGREEN 20,000mAh Power Bank with 20W USB-C / 22.5W USB-A output | Phones, tablets, light handheld top-ups and emergency charging |
Final Recommendation
If you want one power bank that can handle a laptop, phone and Nintendo Switch-family device, start with a 20,000mAh USB-C PD power bank with at least 65W single-port USB-C output. That specification gives many shoppers the best balance of charging power, portability and value.
For many people, the Anker 20,000mAh 87W Power Bank is the first model worth checking because it has the right mix of laptop-friendly output, capacity, ports and everyday convenience. If you need more power, compare it with higher-output models like the Anker Prime range. If you only need phone, tablet and emergency handheld top-ups, you can spend less by choosing a lower-watt 20,000mAh option.
The main rule is simple: for laptops, buy wattage first and capacity second. A 20,000mAh battery sounds powerful, but without enough USB-C output, it may still be the wrong charger for your MacBook or laptop.
Frequently Asked Questions
What size power bank is best for a laptop?
A 20,000mAh power bank is the best starting point for most laptop users. It gives you useful extra battery life without becoming too large for everyday carry.
How many watts should a laptop power bank have?
Look for at least 65W single-port USB-C output. If your laptop uses a higher-watt charger, consider an 87W, 100W, 140W or higher-output power bank.
Can a 20,000mAh power bank charge a MacBook?
Yes, if it has enough USB-C output. A 20,000mAh power bank with 65W USB-C PD is a good match for many MacBook Air-style and similar laptop charging needs, but larger MacBook Pro models may need more wattage for best results.
Is a 10,000mAh power bank enough for a laptop?
Usually not as a main laptop charger. A 10,000mAh power bank is better for phones, earbuds, tablets and small emergency top-ups.
Can I use a power bank for Nintendo Switch?
Yes. A USB-C power bank can charge a Nintendo Switch, and a 20,000mAh model is useful for travel, commuting and longer handheld sessions. For Switch 2, choose a stronger USB-C PD power bank if you want reliable play-and-charge performance.
