High-wattage USB-C batteries
High-wattage USB-C batteries

USB-C batteries-After more than 40 hours researching 23 USB-C power banks and testing 14 of them,

we found that the ZMI USB PD Backup Battery & Hub is the best choice for operating any USB-C device when you are away from an outlet:

The 45W power output comes from charging smartphones, tablets and even laptops. Plus it can work as a USB hub and connector,

which means that you will carry one thing less in a laptop bag when you’re away from your desk.

Fastest USB-C batteries to any device

It fits your laptop bag better than a pocket, but it is the fastest power bank that can be recharged and can charge everything from smartphones to laptops. It also works as a USB hub.

ZMI USB PD Backup Battery & Hub batteries can charge a USB-C batteries laptop, including some of the laptops we have chosen, such as MacBook Pro, Dell XPS 13 or Asus Chromebook Flip, as fast as any other power bank, which is smaller and lighter Of competitors.

It has enough capacity to charge most 13-inch laptops at least once or smartphone five or more times. And when the power bank itself is drained, it can be recharged at almost the same speed, reducing hours of time when it needs to be connected compared to most other competing devices.
 It also has two USB-A ports to charge other devices, most other competitors only have one, and when you don’t need to charge, you can use ZMI as a USB hub instead, saving you the hassle of needing a USB-C to A mouse. Or your drive or camera.

Jackery SuperCharge 26800 USB-C batteries

Same speed, but fewer features

It quickly charges USB-C batteries laptops and anything smaller, stores a lot of power, and includes a 45W wall charger. But it lacks the ports and additional features found in other batteries.

Jackery SuperCharge batteries offer the same 45W fast charging as our best pick, and it is also able to recharge with this speed as well. But you will give up the advantages of ZMI’s standout

Such as: the ability to act as a USB hub and C-to-USB A hub while traveling, and its two additional outputs, Jackery only has one USB-A port, so it won’t be the same quality to charge a full bag of devices, but for those sacrifices, you get a charger A 45-watt wall guarantees a 30% shorter recharge period, and this is a valuable accessory that is not found in any of our other options.

RAVPower 10000mAh Portable Charger with Type-C Port

For USB-C smartphones and tablets only

This compact power bank has a maximum power of 15 watts allowed by the USB-C standard. It also has an additional Micro-USB port and a USB-A port, so you can use whatever cables are at your fingertips.

If you don’t need to charge a laptop, RAVPower 10000mAh Portable Charger with Type-C Port Batteries is the best choice. It will charge phones and tablets at the speed allowed by the standard USB-C, 15 watts complete. In our tests, it can also recharge at this speed as well, which reduces recharge time by up to 30% compared to other competitors. It also has a USB-A port for slow charging of another device and a Micro-USB port as a second charging option, two features that many power banks lack.

What size should you get?
Why should you trust us?
How do we choose and test?
The powerful and equipped choice for laptop computers: ZMI USB PD Backup Battery & Hub
Defects but do not prevent handling
Our second choice for laptops: Jackery SuperCharge 26800
Our selection of mobile devices: RAVPower 10000mAh portable Charger with Type-C Port
What are we looking for?

The size you should have


If you have a laptop that is powered by a USB-C port and you want to charge it without looking for an electrical outlet, you should choose our largest and best-equipped choice for laptop computers. If you are just looking to power your USB-C smartphone or tablet, you can save some money (and some size and weight) by getting our option for mobile devices instead.

Type-C ports can come in three basic power types, with more powerful outputs that match older, less powerful types.

Old charging: up to 12W, which is the same as the traditional USB-A.

USB-C standard: Up to 15W, the shared maximum USB-C portable device. It provides almost 25% faster charging than most USB-A chargers that have been used in recent years.

Connecting power: at least 30W, up to 100W, 8 times faster than modern USB-A chargers or batteries. 30W laptops require about 90W of power, depending on the model, to charge at top speed; newer power banks can support 45W charging, which will give reasonably fast charging to most mid-size laptops like the 13-inch MacBook Pro Or Dell XPS 13, and you’ll charge larger devices, albeit at a slower speed.

Why USB-C batteries:


Inserting a higher capacity will recharge the battery faster, which reduces the time by 30%, which helps during travel or if you have limited time to stop at the plug.

How to test:


The speed with which a battery charges a device is our primary concern, but how quickly the device recharges is just as important, because large batteries can take a long time to recharge, and most of the times we had times when we forgot to charge a power bank we needed to fill it as quickly as possible. A good USB-C battery pack uses Type-C outputs for both input and output; some of the cheaper models still rely on Micro-USB to recharge the package.

We also requested larger battery packs for faster charging at the fastest power savings. For bulky batteries like those made to charge a laptop, the difference that PD shipments can provide can be noticeable: a 92-watt battery, enough to fully charge a 13-inch laptop, takes more than 10 hours to charge without the need for a PD, but can fill up as Only up to four hours with PD.

To test the power input,

we started with a fully discharged battery pack, designed it with a super-fast USB-C charger, and checked the power level using the power saving analyzer. Since these devices tend to attract the most power when they are at their lowest charge,

we have started using the beam battery level at zero to test the maximum power input. We also monitored the battery temperature. Most of them get a little hotter while charging, but the overheating may be a warning sign that something is wrong with this package or design.

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