Introduction

The retractable fast car chargers have become popular among consumers thanks to their convenient pull-to-use design, adjustable cable length, and tangle-free storage — eliminating the need to carry extra cables. Responding to market demand, UGREEN has released several retractable charging products and extended this design to car chargers, launching three models with power outputs of 60W, 90W, and 145W.

In this teardown, we’ll take a closer look at UGREEN’s 90W retractable car charger. It features a 70cm retractable USB-C cable along with both a USB-A and a USB-C port, supporting up to 60W and 30W output, respectively. With a combined 60W + 30W output strategy, it can fast charge a laptop and a smartphone at the same time—greatly enhancing the user experience and charging efficiency during travel. Let’s dive into the internal design and build quality of this product.

Product Appearance

The front of the packaging box displays the UGREEN logo, product name, design image, and key features.

The back of the box shows the specification information.

The package includes the charger and some documents.

The outer shell is made of flame-retardant PC material, and its design is highly recognizable.

The UGREEN logo is printed at the center of the front side.

The back side is printed with "90W".

Model: EC603

Input: 12–24V⎓11A Max

Output:

USB-A: 5V⎓3A, 9V⎓3A, 10V⎓2.25A, 12V⎓2.5A

USB-C: 5V⎓3A, 9V⎓3A, 12V⎓2.5A

USB-C Cable: 5V⎓3A, 9V⎓3A, 12V⎓3A, 15V⎓3A, 20V⎓3A Max

Total Output Power: 90W Max

The top features one USB-A port and one USB-C port. Below them is a magnetic slot for storing the connector.

The retractable USB-C cable is located at the corner.

When not in use, the USB-C connector can be attached to the recessed magnetic slot for convenient storage.

The connector housing is made of PC material and coated with a silver-gray metallic paint.

The cable jacket is made of TPE.

The length of the power bank is about 103.68 mm (4.082 inches).

The width is about 55.24 mm (2.17 inches).

The thickness is about 33.2 mm (1.31 inches). 

The length of the cable is about 70 cm (27.56 inches).

That's how big it is in the hand.

The weight is about 92 g (3.25 oz).

The indicator lights inside the ports make it easier to use at night.

Simulating a 12V DC input, the ChargerLAB POWER-Z KM003C shows that the USB-C port supports QC3.0/4+, FCP, SCP, AFC, PD3.0, PPS, DCP, and Apple 2.4A charging protocols.

And it has three fixed PDOs of 5V3A, 9V3A, and 12V2.5A. It has one set of PPS, which is 5-11V3A.

The USB-C cable supports QC3.0/4+, FCP, SCP, AFC, PD3.0, PPS, DCP, and Apple 2.4A charging protocols.

And it has five fixed PDOs of 5V3A, 9V3A, 12V3A, 15V3A, and 20V3A. It has one set of PPS, which is 5-11V3A.

The USB-A port supports QC3.0, FCP, SCP, AFC, DCP, and Apple 2.4A charging protocols.

Simulating a 24V DC input, the USB-C port was found to support the same charging protocols as under a 12V DC input.

The PDO messages are also identical.

The supported protocols of the USB-C retractable cable are also the same as those under 12V DC input.

The PDO messages are also identical.

The USB-A port supports the same protocols under both input conditions.

Teardown

Next, let's take it apart to see its internal components and structure.

The decorative panel is removed to reveal that the internal structure is secured with screws.

After removing the screws and opening the black panel, the internal PCBA module is revealed.

The PCBA module is secured in place using screws and mounting posts.

The red and black input wires are soldered directly to the PCB.

After removing the top panel, a magnet is embedded in the recessed area, and a light-guiding plastic piece is positioned near the USB ports.

Remove the PCB and cable module.

Remove the small PCB of the input end.

The small PCB at the input end is used only to assist with soldering the positive and negative metal contacts and wires.

There are no components on either the front or back sides.

On the front of the PCBA module, components like inductors and capacitors are reinforced with adhesive. The retractable cable module connects to the PCB via a flat cable, and the solder joints are also secured with adhesive.

On the front side, there are two voltage regulation circuits with corresponding inductors and filter capacitors, as well as the protocol chip for the two ports.

On the back side, there are controllers for the two voltage regulation circuits, synchronous buck-boost MOSFETs, the protocol chip for the USB-C retractable cable, and the output VBUS MOSFET.

Close-up of the fuse.

The solid capacitor for input filtering has a specification of 35V 220μF.

The synchronous buck-boost controller used for the USB-C retractable cable is the PL5501 from Powlicon. It supports a wide input voltage of up to 32V and a continuous load current of 20A. It operates in buck, buck-boost, and boost modes using constant on-time control for excellent load and line regulation. The switching frequency is programmable at 150kHz, 300kHz, 600kHz, or 1.2MHz. The controller comes in a QFN 4x4-32 package.

The four synchronous buck-boost MOSFETs are from Adamant, model AD40N55D3. These are N-channel MOSFETs with a voltage rating of 40V and an on-resistance of 4.5mΩ. They come in a PDFN 3x3 package.

Close-up of the other two.

The matched buck-boost inductor is reinforced with adhesive at the core and insulated with a heat-shrink tube.

The specification of the solid capacitor for output filtering is 25V 220μF.

The protocol chip for the USB-C retractable cable is the IP2723T from Injoinic. This chip is USB-IF certified for PD3.0 PPS (TID: 3135) and is a multi-protocol fast-charging IC designed for USB output ports. It supports a wide range of fast-charging protocols, including USB Type-C DFP, PD2.0/3.0, PPS, HVDCP QC4, QC4+, QC3.0/2.0, FCP, SCP, AFC, MTK PE+ 2.0/1.1, Apple 2.4A, BC1.2, and Samsung 2.0A.

It provides a complete Type-C solution for one-way output applications such as adapters and car chargers. Additionally, the IP2723T features high integration and rich functions, requiring minimal external components during application, which effectively reduces the overall solution size and lowers BOM costs.

Here is the information about Injoinic IP2723T.

The VBUS MOSFET is from Vergiga, model VS3618BE. It is an N-channel MOSFET with a voltage rating of 30V and an on-resistance of 5.2mΩ. The package type is PDFN 3x3x3.

Here is the information about Vergiga VS3618BE.

The synchronous buck converter for the two ports is from Si-power, model SP1239EF, with a maximum output current of 3.4A. This device is designed to operate within a wide input voltage range of 8–30V. Its internal compensation circuit minimizes the number of required external components, all of which are standard and commonly used.

The SP1239EF can operate in CV and CC modes. Overcurrent protection is set via an external current-sense resistor. It is suitable for DC/DC switching power supply applications that require current limiting. The SP1239EF comes in an ESOP-8L package and requires very few external components to function properly.

The buck inductor is also reinforced with adhesive and covered with heat-shrink tubing.

The buck output filtering solid capacitor is rated at 25V 220μF.

The port protocol chip is from HYASIC, model HYC5322. It is a high-performance, highly integrated USB Type-C power delivery and Type-A dual-port controller. It integrates two ultra-low resistance path power switches, supports up to seven PDOs, and features programmable current and voltage settings, fully compliant with the USB PD 3.1 fast charging specification.

The HYC5322 also supports BC1.2 DCP, Apple 2.4A, QC2.0/QC3.0/QC3.0+, AFC, FCP, SCP, and PE+ 1.1/2.0 charging protocols. It includes comprehensive protection features such as OVP, UVLO, OCP, output short-circuit protection, CC or DP/DM over-voltage protection, and over-temperature protection. The HYC5322 comes in a QFN-28L package measuring 4mm x 4mm.

Close-up of the LED indicator light.

The plastic housing of the retractable cable module is secured with clips and a screw.

The flat cable is reinforced and protected with adhesive.

Here is an overview after opening the retractable cable module.

Close-up of the PCB slip ring.

The spool is equipped with three brushes to enhance current-carrying capacity.

Well, those are all components of the UGREEN Nexode Car Charger 90W with Retractable USB‑C Cable.

Summary of ChargerLAB

Here is the component list of the UGREEN Nexode Car Charger 90W with Retractable USB‑C Cable for your convenience.

Its design is stylish and highly recognizable. The included USB-C retractable cable uses upgraded high-strength TPE material, which has passed over 10,000 pull and bend tests. This ensures the cable is flexible, tangle-free, and much more durable. Under both 12V and 24V input conditions, the retractable cable and the two USB ports can each deliver up to 60W and 30W output, respectively, with a total power of 90W. The ports also have built-in indicator lights for convenient use at night.

After taking it apart, we found that it features two voltage regulation circuits. The USB-C cable uses a Powlicon PL5501 synchronous buck-boost controller paired with four Adamant synchronous buck-boost MOSFETs and is controlled by an Injoinic IP2723T protocol chip. The two ports use a Si-power SP1239EF synchronous buck converter along with HYASIC HYC5322 protocol chip for output control. The PCB is secured with screws, and components like capacitors and inductors are reinforced with adhesive.

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