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Chargeasap Flash Pro / Flash Pro Plus Review

Chargeasap Flash Pro / Flash Pro Plus Review
Graphene battery tech unlocks a new era of super-fast-charging power banks. Find out whether the Chargeasap Flash Pro and Flash Pro Plus are worth your money.

Should I Buy The Chargeasap Flash Pro / Flash Pro Plus?

Pros
  • Unbeatable recharging speed
  • High-capacity (25,000mAh)
  • Range of outputs
  • 5-year lifespan
Cons
  • Expensive
  • Bulky and heavy
  • Attracts fingerprints
  • No charger or cable supplied
Our Verdict
  • The fastest charging speeds and excellent functionality make these graphene-composite power banks the most capable we've ever tested - if you can afford them.

Price When Reviewed

  • $299 (Flash Pro); $319 (Flash Pro Plus)
Our biggest problem with high-capacity power banks is that they're always empty when you want to use them, simply because they can often take too long to recharge - by the time you remember to do so, it's usually too late and you're walking out the door. But for power banks that have graphene-composite technology inside, this gripe is a non-issue: graphene-composite can be charged at much lower temperatures than lithium-polymer, which means it can also charge significantly faster.

Fully charging a standard 25,000mAh lithium-polymer power bank could take three or four hours if it has a well-specced Power Delivery input and compatible charger, but nearly a full day without.

For such a power bank, you'd likely pay somewhere in the region of £20/$20 to £50/$50 - maybe £100/$100 tops, if you're paying for fancy extra features or buying from a designer brand.

Compare this to the Chargeasap Flash Pro and Flash Pro Plus. Using their 100W USB-C Power Delivery 3.0 inputs, these 25,000mAh graphene-composite power banks are said to go from zero to 100% in 70 minutes, or to 80% in 45 mins.

In our tests, the Flash Pro actually got to 99% in less than 50 mins, and at 70 mins it was trickle-charging at about 20W and still showing 99%. Five minutes later it hit 100% and charging stopped automatically. During charging, a high-pitched squeal could just be heard, though it wasn't loud enough to be annoying unless you were sitting right next to it.
Chargeasap Flash Pro / Flash Pro Plus Review

You'll pay a lot more than for lithium-polymer here, with these banks costing $299 (approx £220) and $319 (approx £235) respectively (shipping is free). You'll also need to purchase a 100W USB-C charger and compatible cable to achieve these speeds, since they are not supplied in the box. We used the UGreen GaN X 100w (£79.99/$79.99) and SyncWire 100W USB-C to USB-C Cable (£11.99/$12.99) for testing.

To be fair, it's not unusual to pay more for new and emerging technologies and, although this isn't a completely new technology, graphene-composite power banks are by no means commonplace. Both Flash Pro and Flash Pro Plus contain five lithium-polymer graphene-composite battery cells that have been designed in partnership by Tesla and Panasonic.

Graphene-composite batteries have a lifespan four times longer than lithium-polymer, rated for 2,000 cycles, which means they could keep going at full-pelt for five years or more. There's also a dual NTC thermistor inside to monitor and control the temperature, and full FC, CE, ROHS and MSDS certification - when you're talking about crazy charging speeds such as these, safety is a priority. You'll also get a two-year warranty, and since these 92.5Wh banks fall under the 100Wh limit they are safe to take onboard a flight in your hand luggage.

These power banks have more to offer, too, with the ability to charge up to five (Flash Pro) or six (Flash Pro Plus) devices at once, and a neat 1.3in OLED display that gives you real-time data on battery percentage, temperature, and input/output readings in Watts, Volts and Amps. There's also passthrough charging, which means you can charge all those devices and the power bank itself at once.

At least in terms of functionality and performance, Flash Pro and Flash Pro Plus are the most capable power banks we've ever tested.
Chargeasap Flash Pro / Flash Pro Plus Review

What Is The Difference Between Flash Pro And Flash Pro Plus?

Aside from a $20 price difference and the different colour aluminium housings (Flash Pro is black; Flash Pro Plus is grey), the key thing to know here is that Flash Pro is designed with Android users in mind, while Flash Pro Plus is aimed at Apple users.

Both feature four USB ports: three USB-C PD 3.0 ports rated at 100W (also acts as a 100W input), 60W and 20W, and a 50W USB-A port that supports Quick Charge 3.0 and SVOOC, meaning it will support the proprietary fast-charging standards of the likes of OnePlus, Oppo, Huawei and Vivo. These USB ports operate in exactly the same way, whether you're charging an Android phone or an iPhone or any other device.

The difference comes in the wireless charging capability. The Flash Pro has a single Qi charging pad on its top surface that will charge an Android phone at up to 15W, and an iPhone at up to 10W. The Flash Pro Plus instead has a MagSafe pad that can charge an iPhone 12 or 13 at up to 15W, but an Android or older iPhone at a maximum of 10W. Flash Pro Plus additionally has a magnetic Apple Watch charger that operates at 5W, while Flash Pro is not compatible with Apple Watch at all because it has only a single-coil wireless charger.

If you're charging a Samsung device, note that wireless charging does not yet support Samsung's 15W protocol and maxes out at 10W. And neither Flash Pro nor Flash Pro Plus is compatible with Samsung Galaxy watches. In my testing with a Samsung Galaxy Z Flip 3, a message flashed up onscreen purporting that fast wireless charging was not supported, and the Flash Pro's wireless output measurement never went above 5W.
Chargeasap Flash Pro / Flash Pro Plus Review

We mentioned that you can use all these outputs at once, but do note that if you choose to do so you will not get the maximum output from every port. The 100W USB-C port will instead operate at 60W, and the 60W port will instead operate at 45W. The third USB-C port, the USB-A port and the wireless pads are not limited.

We often focus on how fast power banks are able to deliver a charge, but when it comes to low-power devices such as activity trackers and earbuds the opposite is also important. Whereas some power banks will fail to detect their draw and automatically switch off mid-charging, both Chargeasap devices support low-power devices.

How Efficient Are Flash Pro And Flash Pro Plus?

While they charge much faster than standard lithium-polymer power banks, these Chargeasap devices are no more efficient. As with most banks, you can expect to get somewhere around 70% efficiency, give or take a few percent. With a 25,000mAh capacity, this means roughly 17,500mAh is available to your devices.

To work out how many times this would charge your device, just divide by the battery capacity of your own device. My Galaxy Z Flip 3, for example, has a 3,300mAh battery, so I can expect around 5.3 charges from the Flash Pro or Flash Pro Plus.

Over time, energy stored within a power bank is lost. Chargeasap claims that over a period of 395 days, the average discharge rate is around 12mAh per day. Our testing period was not long enough to confirm this.
Chargeasap Flash Pro / Flash Pro Plus Review

Design And Build

It's fair to say that we're impressed with the performance and functionality of the Flash Pro and Flash Pro Plus, but there is room for improvement.

Our review samples were not provided in sealed retail boxes and had clearly been handled previously, which unfortunately meant our first impressions were somewhat marred by the fingerprints and dirty marks visible on the casing. This was particularly noticeable on the OLED display and wireless charging pad, which we also noted lacked grip in use - while the Flash Pro Plus benefits from magnetism, it's quite easy to knock a wirelessly charging smartphone off the Flash Pro.

These thoughts were immediately followed by some dismay at the design. When it comes to devices as powerful and capable as these it should certainly not be all about the design, but when you're paying $300 you would also like something that looks good.

The aluminium housing - which is durable and also helps to dissipate heat - is a cut above the matte black plastic you often find housing a power bank, and Chargeasap gets major Brownie points for the OLED display. But the blocky and rectangular design is oversized, awkward in the hand, and heavy - and the white type found on either (matte black plastic) end denoting the device specifications makes it look cheap. This is a legal requirement, and necessary for ease of use, but some power bank manufacturers do a better job of making that information appear less in your face.

As a guide, most 25,000mAh power banks weigh between 350- and 400g. There is so much tech crammed inside here that the Android model weighs 577g and the Apple version 583.5g. At 158.5x87x28.5mm they are no shrinking violets, either. Chargeasap refer to the Flash Pro and Flash Pro Plus as 'pocket-sized' devices, but you're going to need deep pockets and a seriously heavy-duty belt to keep your trousers from hitting your ankles.

Conclusion

We can overlook our gripes with the design and build of the Chargeasap Flash Pro and Flash Pro Plus because the super-fast-charging graphene-composite battery tech and the range of high-performance outputs make them the most capable power banks we've ever tested - even faster than we anticipated.

They are expensive, sure, but with four times the lifespan of a standard lithium-polymer battery you won't find yourself buying a new one any time soon. It would seem better value if a mains adapter and cable were included, given that most people won't have 100W versions lying around their homes.

Specs

  • 25,000mAh/92.5Wh power bank
  • 5x Panasonic lithium-polymer graphene composite battery cells
  • 0-100% in 70 mins @ 100W
  • circa-70% efficiency
  • aluminium housing
  • 1.3in OLED display
  • 1x 100W USB-C PD 3.0 input/output
  • 1x 60W USB-C PD 3.0 output
  • 1x 20W USB-C PD 3.0 output
  • 1x 50W USB-A output (Quick Charge 3.0 and SVOOC)
  • 15W Qi charger (Flash Pro only)
  • 15W MagSafe wireless charging and 5W Apple Watch charger (Flash Pro Plus only)
  • 190W maximum power output
  • support for low-power devices
  • passthrough charging
  • 158.5x87x28.5mm
  • 577g (Flash Pro), 583.5g (Flash Pro Plus)
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About Wanni Arachchige Udara Madusanka Perera

Hey, I'm Perera! I will try to give you technology reviews(mobile,gadgets,smart watch & other technology things), Automobiles, News and entertainment for built up your knowledge.
Chargeasap Flash Pro / Flash Pro Plus Review Chargeasap Flash Pro / Flash Pro Plus Review Reviewed by Wanni Arachchige Udara Madusanka Perera on Saturday, March 12, 2022 Rating: 5

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