If you have more than a few devices, and you do, let’s be honest, you’re going to need a portable battery. It’s not the sexiest tech purchase you’ll make, but it’s nice to know you’ll be ready if you need to charge your phone, tablet, or watch on the go. Of course, purchasing a portable battery can be a bit stressful. There are seemingly endless options, in a variety of sizes and price points. If you’re in the camp that needs an incredibly large cell with fast charging capability, the Chargeasap Flash Pro Plus might be for you. But at $300, you really need all that power.
Charge Sub Flash Pro Plus
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The Flash Pro Plus has a lot of power, but it’s not cheap.
- Brand: Chargeasap
- Battery capacity: 25,000 mAh (about 92.5 Wh)
- Ports: 3x USB-C, 1@100W, 1@60W, 1@20W, 50W USB-A
- weight: 583.5 g (1.28 lb)
- Dimensions: 15.85 x 8.7 x 2.85 (6.24″ x 3.4″ x 1.12″)
- Battery technology: Graphene
- Maximum fees: 190 watts max
- entrance : 100W USB-C PD 3.0
- Wireless charging: 15W (plus 5W Apple Watch charger)
- Huge capacity
- A mix of USB-C, USB-A, and wireless charging options
- Fast battery recharging via 100W USB-C PD
- Beautiful OLED display for stats
- Very expensive
- A bit bulky and heavy for everyday carry
- The Apple Watch pad cannot charge Samsung watches
Design, hardware and what’s in the box
The Chargeasap Flash Pro Plus is an absolute beast, as far as portable chargers go. Inside the box you get a nice carrying case, the charger itself, and unfortunately there are no cables included. It features a 25,000 mAh capacity, 4 total USB ports, and a sleek display to monitor charging speeds and remaining capacity. Not only can you charge up to 4 devices with USB-C/USB-A, but you can also wirelessly charge a phone and smart watch on top of the charger. This means you can charge six devices at once with this thing, which isn’t bad if you’re a fan of technology on the go. The model I received for review is somewhat aimed at Apple users, with Magsafe charging and a special place for the Apple Watch. Unfortunately, the charging pad itself can’t charge the Samsung Galaxy Watch, as Samsung uses a different charging coil than Apple. The “Android” version of the battery lacks the Apple Watch charger and costs $20 less. It’s nice to have the option.
The first of the three USB-C ports supports 100W USB-C Power Delivery 3.0, the second USB-C port supports 60W Power Delivery, and the third port supports 20W Power Delivery. Additionally, you also get a 50W USB-A port that is specially designed for 50W charging with Opp, OnePlus, and Vivo devices. It also supports Huawei’s own 22.5W fast charging and Qualcomm Quick Charge 3.0.
The Flash Pro Plus uses Panasonic’s graphene composite batteries which take just one hour and ten minutes to fully charge at 25,000 mAh capacity. It takes about 45 minutes to recharge the device from zero to 80% when used with a 100W USB-C charger. Fortunately, graphene batteries never exceed 60°C (140°F), and you won’t notice any swelling over time.
Testing and daily load
One of the most impressive aspects of this charger is the solid build quality. The all-metal design fits perfectly with the design language of 2022’s premium flagship smartphones. Of course, it’s also quite heavy and a bit bulky. Given the impressive capacity of this battery, you can probably expect a fair amount of heft. I didn’t find it too cumbersome to carry in my daily backpack at work or on the go, but it’s not slim. This is not the portable battery you would bring with you if you were going on a short day trip, unless you had five or six devices to charge on a regular basis.
In my testing, the Flash Pro Plus lived up to its advertised output for all wired ports. In terms of phones, I tested the battery with the Pixel 6 Pro, Galaxy Z Fold 3, OnePlus 9 Pro, Xiaomi Mi 11 Ultra, and iPhone 13 Pro Max. Even though Flash Pro Plus works as advertised, there are still several proprietary charging agreements that prevent you from seeing maximum output on all devices. For example, the OnePlus 9 Pro will only charge at the maximum rated speed when connected to one of OnePlus’ official Dash Chargers. While this is an issue, it’s not a problem specific to the Flash Pro Plus and isn’t something I hold against this device.
Temperatures remained low on the Flash Pro Plus while charging my phones, even when charging two or three phones at once. I also decided to test the battery by charging my 16-inch Macbook Pro M1 Max, which is a much different animal than a smartphone. The Flash Pro Plus was able to charge the laptop from 0 to 70% in about 30 minutes with peak wattage at the advertised 100W, but the capacity isn’t enough to fully charge such a large Macbook Pro. The temperature also rose noticeably when charging this laptop. The temperatures were never above a safe level, but I felt the device became warmer to the touch. You can easily monitor the temperature through the 1.3-inch OLED display on the front, which definitely helps alleviate these concerns.
Should you buy it?
The fast charging capability, port versatility, and wireless charging make this my favorite portable battery yet, but it also has some compromises. It’s a little more expensive than the impressive Zendure SuperTank Pro, and you can’t use the Apple Watch pad to charge an Android watch like the Samsung Galaxy Watch 4. You can also save $20 and get the Android version.
If you have a lot of gadgets and don’t want to be tied to a wall outlet, this is one of the best portable batteries on the market. On the other hand, they are incredibly expensive ($299-319 MSRP) and will add a significant amount of bulk and weight to your everyday carry. If you can get past those few minor issues and the hefty price, the Flash Pro Plus is a great option for power users on the go.
Buy it if…
- You often need to charge multiple devices at once while on the go.
- Fast battery recharging time is very important to you.
Don’t buy it if…
- You only need a smaller, cheaper battery to charge one or two devices.
- You don’t travel much.
