Recently, TRUSVOLT, a subsidiary of NANFU Group, launched the TRUSVOLT Air 5K dual-sided magnetic new national standard power bank.
The product innovatively adopts a dual-sided magnetic architecture with wireless charging on one side and magnetic attachment on the other. While the back supports 15W magnetic wireless fast charging, the front features a unique hidden U-shaped magnetic area that can easily attach magnetic accessories such as magnetic stands, magnetic selfie sticks, and magnetic card holders, meeting the diverse needs of street photography, daily video streaming, and office creation.
In terms of appearance design, it uses a sturdy and lightweight 5-series aluminum alloy, featuring an anodizing process and a UV skin-friendly coating. Combined with a finger-joint edge arc design, the body thickness is controlled at approximately 8.7mm and the weight at around 120g.
The product also features a built-in ATL battery cell that has passed five safety tests, including nail penetration and crush tests. At the same time, connecting the product to a computer allows users to check the battery health, temperature, and cell information in real-time via a web page, complying with the 2026 new national standard requirements and providing users with greater peace of mind in daily use.
Below, ChargerLAB brings a detailed teardown of this product to take a look at the internal design and materials.
Product Appearance
The packaging box features a white background design, with a rendered image of the product in the Cherry Twilight colorway printed on the front.
The back of the packaging box is printed with detailed product specifications, core selling point icons, and manufacturer information.
Opening the package reveals all items, including the TRUSVOLT dual-sided magnetic power bank itself, a short C to C cable, and a product user manual.
The included short USB-C to USB-C cable is made of white high-density braided material, which is wear-resistant and tear-resistant.
The connectors at both ends of the data cable feature silver aluminum alloy shells with a fine touch. The front of one shell is laser-engraved with the TRUSVOLT brand logo.
Attached to the back of an iPhone 17 Pro Max as shown, the power bank uses the Cherry Twilight colorway, and the overall size of the product is very compact.
The front of the body features a clean and concise design, with a unique front magnetic identification mark printed in the center.
Actual tests show that the product can be attached to magnetic accessories. This dual-sided magnetic design allows it to attach to the back of a phone for wireless charging while simultaneously attaching accessories like a magnetic selfie stick or magnetic card holder on the front.
The back of the power bank is a wireless charging panel. The top is printed with a magnetic positioning ring and positioning magnet locations, while the bottom is printed with product technical parameters.
Close-up of the parameters on the back of the body is as follows:
Product Name: Power Bank
Model: S1051
Rated Energy: 19.6Wh. This product has 1 built-in 5000mAh battery
Wireless Charging Output: 15W Max
Input: 5V3A, 9V1.65A (15W Max)
Output: 5V3A, 9V2.22A (20W Max)
Total Output: 15W Max
Manufacturer: Shenzhen Chuanying Innovation Technology Co., Ltd.
Execution Standards: GB47372-2026; GB31241-2022; GB4943.1-2022
Production Factory: Huizhou Hairun Chuanghui Technology Co., Ltd.
Recommended Safe Service Life: 5 years
Code/SN: HR67DDG9F-04T00301HATLD
Production Date: 2026/09/15
The product has passed 3C certification
One side of the body near the bottom is equipped with a USB-C bidirectional fast charging port, featuring a striking yellow plastic core.
The other side of the body features a track-shaped power button in the same color as the body.
The glossy silver decorative panel at the bottom of the body is equipped with hidden LED power indicator lights.
When the power bank is attached to the back of an iPhone, pinching the power bank with fingers can lift the phone. The magnetic suction is strong, making it unlikely to fall off during daily use.
When the power bank is attached to the back of the iPhone, it does not block the camera lenses.
After attachment, it can be seen that the width of the power bank is moderate and does not exceed the phone's frame.
Product Dimensions and Weight
Using a caliper, the actual measured length of the power bank body is approximately 104.11mm.
The actual measured width of the power bank body is approximately 70.41mm.
The actual measured thickness of the power bank body is approximately 8.71mm.
The total length of the included USB-C braided short cable is measured to be approximately 17cm.
The actual measured weight of the power bank is approximately 122.8g.
Placing the power bank in the palm of the hand, the size is as shown in the picture.
Web Page Information Query
The product supports intelligent data interaction functions. By connecting the power bank to a laptop using the included USB-C data cable and opening the TRUSVOLT power bank intelligent management system web page, users can read the internal operating status and cell information of the power bank in real-time.
The web page can display the product model, current battery level, battery health, real-time cell temperature, cumulative charge and discharge cycles, battery pack voltage, current, and current power, among others.
The bottom of the page can also display single cell voltage, battery manufacturer, battery serial number, and abnormal status monitoring.
Product Fast Charging Protocol Test
Actual tests show that the product's USB-C port supports QC3+, FCP, AFC, PD3.0, DCP, and Apple 2.4A fast charging protocols.
Reading the USB-C port PDO, it is measured to support two fixed voltage gears of 5V3A and 9V2.22A.
After reviewing the product appearance, dimensions, intelligent information query, and fast charging compatibility, the following text officially begins the teardown.
Product Teardown
Prying open the wireless charging panel on the back along the seam reveals reinforcement structures on the inner side of the panel. The surfaces of the internal battery cell and PCBA module are covered with large areas of thermally conductive copper foil and graphite heat dissipation stickers.
Close-up of the wireless charging transmitting coil, which is tightly wound with multiple strands of Litz wire, fixed on the surface of a black magnetic isolation sheet, with high-temperature tape pasted at the lead wires for insulation and fixation.
The internal components are separated one by one.
Black foam tape is pasted on the front of the battery cell for cushioning protection.
The built-in battery cell comes from ATL New Energy Technology. The cell model is 506578B, with a nominal voltage of 3.92V, a nominal capacity of 5000mAh, and a rated energy of 19.6Wh.
Overview of the front of the PCBA module. The left side is equipped with a USB-C female port, lithium battery protection chip, lithium battery protection MOSFET, VBUS MOSFET, wireless charging main control MCU, wireless charging power stage, and filtering capacitors. The right side is equipped with the power bank main control SoC chip, inductors, and power button. The top also features LED indicator lights.
The back of the PCBA module features battery positive and negative pads, a wireless charging resonant capacitor switching MOSFET, and an NTC thermistor.
The power bank main control chip comes from iSmartWare, model SW6236. This is an A+A+C+C four-port multi-protocol power bank SoC.
The chip integrates 5A high-efficiency switching charging and a built-in 22.5W high-efficiency synchronous boost output with an efficiency of up to 95.73%. Additionally, the standby power consumption is very low, at less than 40μA@3.7V.
It supports fast charging on any of the four ports, with the two C ports supporting bidirectional input and output. It also supports multiple mainstream fast charging protocols such as PPS/PD/SCP/FCP/QC/AFC/PE/BC1.2, adapting to the fast charging needs of most devices on the market.
The iSmartWare SW6236 supports 3.6V/3.65V lithium iron phosphate batteries and 4.2V/4.3V/4.35V/4.4V/4.5V ternary lithium batteries. It features an I²C interface to set the charging current, output voltage, and output current limit.
It also supports intelligent plug-in recognition, small current mode, and wireless charging mode. Furthermore, it supports fast charging while charging and discharging in wireless charging mode.
The SW6236 has a built-in coulomb counter for precise power measurement and a built-in 12-bit ADC for high-resolution analog-to-digital conversion, supporting 3-5 LED power displays.
The chip also supports 188-segment digital tubes with fast charging indicators and wireless charging icon digital tubes, allowing users to easily understand the performance and status of the device. Additionally, it features multiple protection functions such as OVP/OCP/UVP/OTP/CTP and NTC temperature protection, ensuring reliability.
Two VBUS MOSFETs with the silk screen 8205A.
The built-in planar inductor in this product comes from JSZC, with the part number JSEL720D-2R2M.
The nominal inductance of this product is 2.2 uH, with a tolerance of ±20%. The DC resistance is 9.8 mΩ. This product supports high-current applications, with a maximum saturation current of up to 17.5A and a maximum rated current of 14.5A.
In terms of material structure, this product uses flat enameled wire winding and a composite magnetic powder formula. Thanks to its unique production process, under the same test conditions, it achieves low loss while significantly enhancing current carrying capacity, allowing it to easily meet the rigid temperature control indicators of the new national standard for power banks.
The information for JSZC JSEL720D-2R2M is shown in the figure.
A chip with the silk screen FAAH.
A chip with the silk screen LQAX.
An MCU from Generalplus, model GPM8F1016VK, adopts a QFN32 package. It is used for wireless charging main control and simultaneously implements intelligent management for the new national standard power bank.
A wireless charging power stage comes from SCT, model SCT63142. The chip integrates a four-MOSFET full-bridge power MOS, gate drivers, and dual 5V and 3.3V LDOs, adopting a QFN19 package.
The wireless charging resonant capacitor switching switch comes from Vergiga Semiconductor, model VS3622DE. It is a dual NMOS with an on-resistance of 10mΩ, a withstand voltage of 30V, and a current of 35A, adopting a PDFN3333 package.
The information for Vergiga VS3622DE is as above.
Close-up of four parallel wireless charging resonant capacitors.
The two built-in iCM CM100E-HDQN chips in the product are single-cell lithium battery protection chips that support external current-sensing resistors, adopting a DFN6 package.
The chip integrates high-precision voltage detection circuits and delay circuits. By monitoring the battery voltage and loop current in real-time, it drives the external charge and discharge control MOSFET, providing comprehensive safety protection for single-cell lithium batteries against overcharge, over-discharge, charge and discharge overcurrent, and load short circuits.
The CM100E-HDQN features extremely high detection accuracy and low power consumption. Its overcharge protection voltage is 4.425V (accuracy ±20mV), over-discharge protection voltage is 2.800V (accuracy ±50mV), and the charge and discharge overcurrent detection accuracy reaches ±1.0mV.
At the same time, the chip supports charger and load detection, overcharge self-recovery, and 0V battery charge prohibition functions. The typical normal operating current is only 2.2μA, and it is as low as 0.5μA in the over-discharge state, with an extremely simplified peripheral circuit.
The two lithium battery protection MOSFETs also come from iCM, model CMT1070DEV. They are dual NMOS with a withstand voltage of 16V and an on-resistance of 2.3mΩ, adopting a DFN3*3 package.
The information for iCM CMT1070DEV is shown in the figure.
Close-up of the USB-C female port, featuring a built-in yellow plastic core.
Close-up of the five LED indicator lights, covered with foam to prevent light bleeding.
Close-up of the power button on the side of the body.
Close-up of the NTC thermistor used for real-time monitoring of the cell temperature.
The teardown is completely finished. Here is a family photo of all the components.
ChargerLAB Summary
Finally, the bill of materials for the product is attached for your reference.
This TRUSVOLT Air 5K dual-sided magnetic new national standard power bank uses a 5-series aluminum alloy shell. The surface is treated with anodizing and a UV skin-friendly coating. The bottom features a glossy silver decorative panel with hidden LED power indicator lights. The product supports 15W wireless charging and a maximum 20W wired fast charging output capability.
Through teardown, ChargerLAB learned that the product has a built-in ATL battery cell with a capacity of 5000mAh. The battery protection circuit adopts a solution of two iCM CM100E-HDQN protection chips paired with CMT1070DEV lithium battery protection MOSFETs, and is equipped with an NTC thermistor for real-time monitoring of the cell temperature.
The wired charging and discharging part of the PCBA module uses the iSmartWare SW6236 power bank SoC chip, paired with a JSZC JSEL720D-2R2M planar inductor for boost conversion. The output end is equipped with two VBUS switch MOSFETs with the silk screen 8205A.
The wireless charging and new national standard intelligent interaction part is controlled by a Generalplus GPM8F1016VK MCU, paired with an SCT SCT63142 full-bridge power stage chip and a Vergiga Semiconductor VS3622DE resonant capacitor switching MOSFET.
In terms of internal structure, black foam is pasted on the front of the battery cell for cushioning protection. Reinforcement ribs are set on the inner side of the wireless charging panel. The surfaces of the battery cell and PCBA module are covered with large areas of thermally conductive copper foil and graphite heat dissipation stickers to assist in heat dissipation. Components such as inductors and filtering capacitors are reinforced with glue. The overall internal structure is compact, and the workmanship is solid.