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Choetech B664

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Universal ultra-high capacity powerbank battery (50000 mAh or 185 Wh) with two outputs (microUSB + USB-C), support for popular fast charging technologies, and the ability to simultaneously serve four devices, featuring an intuitive digital info display and a built-in LED lamp for creating local diffused lighting. It stands out for its capability to deliver high power through the USB-C port (up to 65W in 20V/3.25A mode). Positioned as a mid-range product for 2023, it targets users who need a high-capacity yet relatively affordable mobile power source for quickly charging multiple gadgets at once, including any laptops with a USB-C power port. The Choetech B664 powerbank battery is also capable of charging smartphones, tablets, wireless speakers, smartwatches, action cameras, drone ba...tteries, mobile gaming consoles, and other gadgets. It can be a power source for home network equipment and a small LED lighting system that can help during a blackout. Fully supports accelerated charging for compatible gadgets using Quick Charge 3.0 and Power Delivery 2.0/3.0 technologies. These technologies enable the reduction of average smartphone charging times by 1.5-2.5 times. Supported devices can connect to 3 USB-A ports (2x22.5W and 1x10.5W) or USB-C (up to 65W). The capacity of this powerbank battery is sufficient for 6-7 charges of an iPhone 14.
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Choetech B664
Colour
Battery capacity50000 mAh
185 W*h
Real capacity31500 mAh
Battery typeLi-Pol
Charging gadgets / outputs
USB-C1 pcs
USB-A3 pcs
USB-C165 W
USB-A122.5 W
USB-A222.5 W
USB-A315 W
Power output (all ports)20 W
Power bank charging
Power bank charging inputsUSB-C
microUSB
Power bank charge power65 W
Features
Fast chargeQuick Charge 3.0
Power Delivery 3.0
Bundled cables (adapters)USB-C
Featuresinfo display
lamp
General
Body materialplastic
Dimensions138x75x75 mm
Weight1135 g
Official Websitechoetech.com
Added to E-CatalogJune 2023

Universal ultra-high capacity powerbank battery (50000 mAh or 185 Wh) with two outputs (microUSB + USB-C), support for popular fast charging technologies, and the ability to simultaneously serve four devices, featuring an intuitive digital info display and a built-in LED lamp for creating local diffused lighting. It stands out for its capability to deliver high power through the USB-C port (up to 65W in 20V/3.25A mode).

Positioned as a mid-range product for 2023, it targets users who need a high-capacity yet relatively affordable mobile power source for quickly charging multiple gadgets at once, including any laptops with a USB-C power port. The Choetech B664 powerbank battery is also capable of charging smartphones, tablets, wireless speakers, smartwatches, action cameras, drone batteries, mobile gaming consoles, and other gadgets.

It can be a power source for home network equipment and a small LED lighting system that can help during a blackout. Fully supports accelerated charging for compatible gadgets using Quick Charge 3.0 and Power Delivery 2.0/3.0 technologies. These technologies enable the reduction of average smartphone charging times by 1.5-2.5 times. Supported devices can connect to 3 USB-A ports (2x22.5W and 1x10.5W) or USB-C (up to 65W). The capacity of this powerbank battery is sufficient for 6-7 charges of an iPhone 14.

The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
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Model overview based on user reviews  
The Choetech B664 power bank is highly praised for its large capacity and fast charging speed, making it an excellent choice during power outages. Users appreciate its ability to power laptops for extended periods, with reports of 8-10 hours of operation. The power bank charges fully in about 2.5-4 hours with a 65W charger, although charging with lower wattage takes longer. It features a sturdy build quality and is considered reliable, with a favorable price-to-quality ratio. While the flashlight and display are noted as less informative, the overall performance and capacity make it a valuable backup power source. The power bank is slightly heavy but stands well on a table, and users are generally satisfied with its functionality and durability.
Pros

Cons

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0
1
6
wonderful model, really honored
25 December 2023 
Took it for charging my laptop in case of a blackout, input criteria was large capacity, min. 65w input and output. It arrived half-charged, drained it to zero, then charged to 100%. The laptop is HP, charger is 45w, supports charging through type c, charges with the included cable. The laptop worked from the power bank for a little over 6 hours with the battery charged to 10%. In principle, you can work 6-7 hours without electricity. Charging with 30w takes about 9-10 hours, additionally ordered a 67w charger to speed up the charging time.
Large capacity.
65w input and output
No through-charging. Dosit great, but not informative display.
wonderful model, really honored
25 August 2023 
Preparing for winter, in addition to the station, I bought this power bank so that the laptop works even during blackouts.

According to measurements, it is enough to charge the laptop twice while I'm using it (Dell Latitude 5430). I think it will charge an off laptop 2.5-3 times.

The working mode includes having 2 browsers open, loads of "heavy" web applications, VS Code, Docker with several containers, lots of apps written in Electron, screen brightness at maximum, YouTube music playing in the background, and video calls.

Under this load, the laptop itself lasts for 3-4 hours + 2 hours for charging. If the laptop is charged + 2 cycles of 5 hours (charge/discharge) = 12-14 hours of intensive continuous work for the laptop. Quite good as a backup when the station exhausts its resource.

Slightly warm when discharging, heats more during charging, but not hot. Charges incredibly long from a 20W block, planning to get another GAN charger with 65W output. This power bank seems to handle that.

The flashlight is for aesthetics, so you don't trip in the dark. Let it be.

The power bank itself is quite well assembled, heavy, stands very well on the table, and so far I have no complaints about the quality.

The display area of the power bank is large, but the only information shown is the charge level in percent. The same Baseus, which has a green round screen, shows voltage, amperage, charge level, and if I'm not mistaken, consumption in watts/hours on that tiny screen. But for its price, it's quite good with
Price/quality
Little informative screen
good model, done well
6 September 2025 
I took it to charge my laptop. Everything is great, I like it.
Large battery, flashlight with three modes, multiple outputs.
After a long downtime, it shows charging incorrectly. That is, it showed 60%, but in fact it was 30%
Pasha Warganovuse Choetech B664 few months
3 out of 7 user review(s) shown
4 more user review(s)