UGREEN has launched a new 20000mAh power bank with a built-in cable. Building upon the design of its Super Power Block series, this product adds the increasingly popular built-in USB-C cable design. It supports bi-directional fast charging, allowing you to plug and charge without needing an extra cable, meeting consumer demands and enhancing the user experience.
Beyond the Built-in USB-C Cable
In addition to the built-in USB-C fast charging cable, the product features an extra 1A1C port configuration. It supports 67W PD, Xiaomi 67W Surge wired fast charging, and 33W UFCS fast charging. With excellent compatibility, it meets the fast charging needs for Xiaomi series flagship phones, laptops, and other devices. The large 20000mAh capacity ensures long battery life. The battery cells are from the top-tier brand SunPower (Changhong Sanjie), backed by mandatory 3C certification, guaranteeing reliable quality. Let’s proceed with a detailed teardown of this power bank to examine its internal construction and craftsmanship.
UGREEN Super Power Block 67W Fast Charging Power Bank Unboxing
The front of the packaging box features the UGREEN brand, product name, image, and key selling points.
The back of the box is printed with the power bank’s parameters, precautions, and manufacturer information.
A close-up of the parameters on the packaging box. The specifications will be detailed again in the product showcase section below.
The box contains the power bank, a data cable, user manual, warranty card, and a precautions guide.
The included data cable is USB-C to USB-C. The connector housing and stress relief are molded as one piece, with a matte surface for easy plugging and unplugging. The UGREEN brand is displayed on the front.
The measured cable length is approximately 52.5cm.
Using the ChargerLAB POWER-Z KM003C, the cable is tested and found to contain an E-Marker chip. It supports power delivery up to 50V 5A and USB 2.0 data transfer capabilities.
The power bank retains the design language of the Super Power Block series while adding the built-in braided USB-C cable. The overall aesthetic remains professional, and the built-in cable design caters to current market demands, enhancing practicality.
The top surface of the unit is printed with the UGREEN brand and “67W 20000mAh Power Bank” name.
The side features a power button and a digital display screen.
The button is made of metal, adding a touch of refinement. The display shows the remaining battery percentage, helping users plan their power usage effectively.
In addition to the 1A1C fast charging ports, the top of the unit features the new built-in USB-C cable design.
Furthermore, the built-in USB-C cable is braided, making it more reliable and durable. The other side of the unit has a recessed slot for storing the cable connector, facilitating easy portability.
It can also be used as a carrying strap, adding further convenience for daily travel.
The built-in USB-C cable has a flat design. The connector housing is matte for easy grip, printed with “67W” and “IN 2/OUT 3” identifiers on the front.
The back of the unit is printed with the power bank’s label information.
Close-up of the power bank’s parameters:
- Model: PB550
- USB-C / Built-in USB-C Input: 5V3A, 9V3A, 12V3A, 15V3A, 20V3.25A 65W Max
- USB-C / Built-in USB-C Output: 10V2.25A, 5V3A, 9V3A, 12V3A, 15V3A, 20V3.35A 67W Max
- USB-A Output: 10V2.25A, 5V3A, 9V2A, 12V1.5A
- Total Output: 5V6A, 9V5.22A, 10V4.5A, 12V4.67A, 15V3A, 20V3.35A
- Lithium-ion Battery Rated Energy: 72Wh (14.4V 5000mAh)
- Total Cell Capacity: 20000mAh
- Rated Capacity: 11520mAh (TYP 5V 6A)
The power bank has passed mandatory 3C certification. Certificate number 2025010914782063 is verifiable, and it is approved for air travel.
The measured length of the power bank body is 139.11mm.
The measured width is 80.42mm.
The measured thickness is 26.92mm.
The length of the built-in USB-C cable is approximately 18cm.
A visual representation of the power bank’s size in hand.
The measured weight of the product is approximately 394g.
The built-in USB-C cable is tested and supports FCP, SCP, AFC, QC3.0, PD3.0, DCP charging protocols, as well as Xiaomi’s 67W proprietary fast charging protocol.
The PDO messages reveal it also has five fixed voltage profiles: 5V3A, 9V3A, 12V3A, 15V3A, 20V3.35A, and two sets of Xiaomi proprietary voltage profiles: 3.6-11V6.1A and 3.6-20V3.25A.
The USB-C port is tested and supports FCP, SCP, QC3.0, PD3.0, DCP charging protocols, as well as Xiaomi’s 67W proprietary fast charging protocol.
The PDO message results are identical to those of the built-in USB-C cable.
Finally, the USB-A port is tested and supports UFCS, FCP, SCP, AFC, QC3.0, DCP, and Apple 2.4A charging protocols.
The UFCS fusion fast charging is measured to have one voltage profile: 5.5-11V3A.
UGREEN Super Power Block 67W Fast Charging Power Bank Teardown
The casing is initially opened along the seam. The shell is made of PC+ABS flame-retardant plastic. Foam padding is attached inside for impact protection of the battery cells.
The other part of the casing houses the PCBA module and the battery pack composed of four 21700 cells. The individual cell voltage sense wires are connected via a socket.
The PCBA module uses a two-board design. The lower board is fixed with screws. The battery pack is connected to the upper board via spot-welded nickel strips.
The battery cell voltage sense wires are soldered to the cells with nickel strips and secured with high-temperature resistant insulating tape. A thermistor for monitoring cell temperature is also visible and fixed with adhesive.
The battery pack and PCBA module are removed. The other half of the casing contains plastic partitions and support plates to secure the battery pack.
A small magnet is embedded in the side of the casing to attract and secure the built-in USB-C cable connector. High-quality insulating paper is also applied, showing attention to detail.
The solder joints of the built-in USB-C cable cores and the pin headers connecting the two boards are reinforced with adhesive for protection.
A cushioning pad is placed at the bottom of the battery pack, with high-quality insulating paper around the edges.
The battery pack consists of four 21700 lithium-ion cells, all with the same part number.
Close-up of the cell markings. Model: INR21700-5000, from SunPower (Changhong Sanjie). Nominal voltage 3.6V, nominal capacity 5000mAh, energy 18Wh, charge limit voltage 4.2V. Certified by CCC and CE.
The top side of the upper PCB board features a lithium battery protection IC and protection MOSFETs. A balancing circuit is located in the top right area.
The other side features pin header sockets on both sides.
The battery protection IC is from iCM Creatic, model CM1341-FKT. This is a dedicated protection chip for 4-series Li-ion/LiFePO4 batteries. It includes high-precision voltage detection and current detection circuits.
By monitoring the voltage of each cell, charge/discharge current, and temperature, it enables protection functions including overcharge, over-discharge, balancing, wire break, low-voltage charge disable, discharge overcurrent, short circuit, charge overcurrent, and over-temperature protection. The discharge overcurrent protection delay is adjustable via an external capacitor; other protection delays are built-in.
The lithium battery protection MOSFETs are from AGMsemi, model AGM308AP. NMOS, 30V rating, 6.2mΩ Rds(on), in PDFN3.3*3.3 package.
Close-up of the balancing circuit.
The other board’s front side features the buck-boost inductor, filter solid capacitors, thermistor, digital display, power button, etc. Capacitors and inductors are reinforced with adhesive.
The other side features two power bank SOC chips, buck-boost switching MOSFETs, and VBUS switch MOSFETs for the ports.
The battery-side filter solid capacitors are from TK (Toko), specification 25V 100μF.
The main power bank SOC chip is from Injoinic, model IP5385. This is the first fast charging power bank SOC chip integrating the UFCS fusion fast charging protocol. It integrates QC2.0/QC3.0/SCP/UFCS output fast charging protocols, AFC/FCP input/output fast charging protocols, TYPE-C PD2.0/PD3.0 input/output protocols, TYPE-C PD3.0 PPS output protocol, and is compatible with BC1.2 and Apple devices. It combines a synchronous bidirectional buck-boost converter, lithium battery charge management, battery level indicator, and other multi-functional power management into a single SOC. It provides a complete power solution for fast charging power banks.
IP5385 can simultaneously support USB-A x2, USB-C x3 (total three USB ports), and one Lightning port. Any single port can support fast charging. When two or more output ports are used simultaneously, only 5V input/output is supported. Thanks to the high integration and rich features of IP5385, very few external components are required in application. Only one inductor is needed to achieve the bidirectional buck-boost function, effectively reducing the overall solution size and BOM cost.
IP5385 supports 2~4 series cells. The synchronous switching buck-boost system can provide up to 65W input and output power. It automatically enters sleep mode under light load conditions.
The four paired synchronous buck-boost switching MOSFETs are all AGM404AP1 from AGMsemi. These are NMOS, rated 40V, 4.4mΩ Rds(on), in PDFN3.3*3.3 package.
Close-up of the other two AGM404AP1 synchronous buck-boost switching MOSFETs.
The other power bank SOC chip also uses the Injoinic IP5385.
The four paired synchronous buck-boost switching MOSFETs also use AGM404AP1.
The cores of the two buck-boost inductors are reinforced with adhesive and insulated with heat-shrink tubing.
The filter solid capacitor for the built-in USB-C cable side is from TK, specification 25V 100μF.
The E-Marker chip for the built-in USB-C cable is placed on a small board. It’s marked 332D, actual model HUSB332D from Hynetek. This is Hynetek’s latest USB Type-C electronic marker chip (USB eMarker). It supports USB Type-C Specification 2.2, USB Power Delivery Specification 3.1, USB4 2.0 specification, and Thunderbolt 3/4 specifications. It also supports the USB PD3.1 EPR (Extended Power Range). The HUSB332D has passed USB-IF certification, TID: 9125.
Information on Hynetek’s HUSB332D.
The filter solid capacitor at the USB-C port is also from TK, specification 25V 100μF.
The eight MOSFETs used as VBUS switches for the ports share the same part number.
The VBUS switch MOSFETs all use AGMsemi AGM308AP.
Close-up of the thermistor.
Close-up of the power button, SMD mounted.
Close-up of the USB-C port.
Close-up of the USB-A port.
The digital display is housed in a plastic shell for reinforcement.
A view of all disassembled components.
ChargerLab Teardown Summary
Finally, here is a core component list for the UGREEN 67W Built-in Cable Fast Charging Power Bank for easy reference.
Building upon the Super Power Block series design, UGREEN’s power bank adds a built-in USB-C cable, maintaining its professional aesthetic while meeting consumer demand for this feature in the series. The use of a braided cable for the built-in wire demonstrates UGREEN’s attention to detail and enhances durability.
Both the built-in USB-C cable and the USB-C port support 65W PD fast charging input and 67W PD output, along with Xiaomi’s 67W Surge fast charging. This bi-directional fast charging allows for quick recharging of the power bank itself and rapid charging of devices. It aligns perfectly with the needs of Xiaomi users, meeting the fast charging requirements for devices like the new Xiaomi 15S Pro. Additionally, it supports fast charging for laptops, tablets, and other devices, and complies with the latest regulations for air travel. With this power bank, you can travel worry-free.
Through the teardown, ChargerLab identified that the power bank uses four INR21700-5000 cells, which have passed mandatory 3C and CE certifications, ensuring safety and reliability. It employs a Creatic CM1341-FKT lithium battery protection solution, balancing circuit, and a thermistor for protection and temperature monitoring.
Two Injoinic IP5385 SOC chips handle the fast charging control for the ports. MOSFETs from AGMsemi, models AGM308AP and AGM404AP1, are used. Capacitors are used for filtering, components are reinforced with adhesive, and the battery cells are insulated and cushioned for protection.
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