(Last Updated On: August 22, 2020)

Many mid-range power banks, which are power banks that have 10,000mAh power capacities usually have one or two charging ports to charge from. That’s the standard, and for the most part, portable chargers in general, no matter how high of a power capacity they have usually had two or three ports.

This Silicon Power QP75 portable charger has a 10,000mAh power capacity, and yet the charger can charge four devices at the same time. On top of that, this power bank even has two fast-charging technologies that allow you to fast charge certain compatible devices.

Power

Power Capacity:

The power capacity of this Silicon Power portable charger is nothing special, as it has a 10,000mAh power capacity. This power capacity is a good amount for charging smartphones, as most smartphones will be able to charge to full power about one or two times. That said, you may only get a single full charge for some phones and have a little left over capacity, as many phones do have larger batteries and therefore use more power capacity for charging.

Also, another factor to take into account is the fast charging from this power bank, as fast charging does lower the conversion of power during charging, and therefore you end up with less power to charge up your phone.

So if you’re charging smartphones like the Samsung Galaxy S20 with a 4,000mAh battery, a Galaxy S20+ with a 4,500mAh battery, or a Galaxy S20 Ultra with a 5,000mAh battery, then you’re going to end up with a single full charge and a little left over capacity. This is true if you’re using the fast charging from this Silicon Power portable charger.

The power capacity can also be useful for charging tablets, but you may end up using the entire power capacity from this power bank. So it’s best to stick to charging smartphones with this power bank.

Output Charging:

The charging from this Silicon Power QP75 power bank is impressive, and you won’t find many other 10,000mAh portable chargers on the market that can charge four devices at the same time.

The most notable part of the output charging is that there are two built-in cables, one is a Micro-USB cable and the other is a USB-C cable. The other two methods of charging are via a USB-C Power Delivery port and a USB-A Quick Charge port. So you’re able to fast charge Quick Charge compatible smartphones via the USB-A port and you can also fast charge Android smartphones and Power Delivery compatible iPhones via the USB-C Power Delivery port.

The most impressive part about having four output charging ports is that you’re able to charge four devices at the same time. That said, when it comes to fast charging, you can only fast charge a single device at a time, because the max output of this power bank is 15W only.

We were able to fast charge a Google Pixel via the Power Delivery port alone, and we were also able to fast charge an LG G7 via the Quick Charge 3.0 port alone. Charging other devices at the same time makes the fast charging go-to standard charging.

The two built-in cables have a 5V/2.1A charging speed.

Input Charging:

The recharging for this power bank can only be done via the USB-C Power Delivery port, and you’re able to recharge the power bank at Power Delivery speeds with a Power Delivery wall charger.

Design

Size and Weight:

Considering that this power bank can charge four devices at the same time, and has two fast charging ports, the size is perfect. It has a length of 5 inches and the thickness of the charger is about 0.6 inches. It’s lightweight, too, with a weight of 7 ounces.

The power bank is easily pocketable and you won’t have any trouble taking it anywhere.

Functional Components:

The power bank is easy to use. No matter what output port you’re using charging automatically starts, but there is a power button that you can use to check how much power capacity is left and to restart charging.

The two built-in cables fit right into the power bank and you have to pull them out of the power bank to use them.

Build

Structure and Material:

The build quality of this charger is great, and we don’t get a brittle feeling that most power banks that are made of plastic usually have. Instead, since this power bank does have some rubber built around it, it’s built better and can take a few light drops without taking much damage.

Tech:

Since this Silicon Power portable charger can charge four devices at the same time, we thought that it would heat up a bit, but that’s not the case. The charger does not heat up at all, even when charging four devices and this is because the max output is capped at 15W no matter how many devices you’re charging at the same time.

Reliability

We think that this Silicon Power QP75 portable charger is the most reliable 10,000mAh power bank that you can own. It has a great amount of power that can charge phones to full power about one or two times, it has Power Delivery and Quick Charge for fast charging, it has two built-in cables and it can charge four devices at the same time.

The power bank even comes with two USB-C to USB-A cables. However, one change that could make this power bank truly 100% reliable is if they replaced the Micro-USB cable with a Lightning cable as most Android smartphone users don’t have phones with a Micro-USB port anymore as USB-C ports are the norm.

Summary:

Power:

The charging power is great as the power bank uses Quick Charge and Power Delivery. You’re also able to charge four devices at the same time, thanks to the two built-in cables.

Design:

The power bank’s two built-in cables fit seamlessly into the power bank until you take them out, and the charger is slim and light, so it’s simple to fit the power bank into your pocket.

Build:

The charger does not overheat because of its low 15W max output and it has a great build due to its use of rubber that prevents shock damage in the case of fall.

Reliability:

This is likely the most reliable 10,000mAh power bank, but its reliability would be greater if it used a Lightning cable instead of a Micro-USB cable.

	Silicon Power 10,000mAh QP75 4 Output Power Bank Specs
Power Capacity	10,000mAh
USB-A Port	5V–6V/3A | 6V–9V/2A | 9V–12V/1.5A
USB-C Power Delivery Port	5V/3.0A | 9V/2.0A | 12V/1.5A
Built-in USB-C Cable	5V/2.1A
Built-in Micro-USB Cable	5V/2.1A
Max Output	18W
USB-C PD Input	5V/3.0A | 9V/2.0A
Size	5.7 x 2.9 x 0.6 inches
Weight	7.5 Ounces

Conclusion:

The market could use more of these types of Silicon Power portable chargers, as the charger has many ways to charge, uses fast charging, and it comes in a small form factor that is no problem to take anywhere.

View at Silicon Power