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TEARDOWNTeardown: 65W 3-in-1 Power Bank With Retractable USB-C Cable
The AP03-10K packs a 10500mAh three-cell pack, a quasi-resonant GaN charger stage and a detachable retractable USB-C cable module rated to 65W.
Sep 28, 2026 · Dangel Technology editorial
The AP03-10K combines an AC adapter, a power bank and a captive retractable cable in a single body. Its nameplate lists a 10500mAh battery at 3.7V, or 38.85Wh, AC input of 100-240V at 50-60Hz with a 30W maximum on the USB-C input, and up to 65W output across two USB-C paths. The USB-A port is limited to 22.5W, and the unit carries CE, FCC and RoHS marks.
The enclosure measures 123.34mm by 47.19mm by 45.28mm and weighs 346.0g, with a captive cable about 70.5cm long. Testing recorded UFCS 1.0, PD3.0/PPS, QC3+, QC5, FCP, SCP and AFC support, with fixed PDOs up to 20V at 3.25A plus PPS ranges of 3.3-11V 4.5A and 3.3-21V 3.25A. Charging an iPhone 17 Pro Max measured 37.31W.
A colour display reports live input and output power, and a long press opens a menu with state of health, cycle count, cell temperature and the voltage of each of the three series cells. The retractable cable sits in a module that detaches through a 5-pin contact block, while the 3500mAh 18650 cells are tied together with laser-welded nickel strips.
The charger stage is a quasi-resonant flyback with synchronous rectification. A DK8065 controller integrates a 700V GaN switch, runs up to 200kHz with standby below 50mW, and pairs with a DK100R10VN synchronous rectifier carrying a 100V NMOS. A 600V 4A soft-recovery bridge and 400V bulk capacitors handle the mains input.
Power bank functions rely on a SW7201 four-switch bidirectional buck-boost controller rated to 100W for one to four cells, alongside SW6301 and SW6303 power bank SoCs that support multi-cell packs and UFCS. A PY32F030 microcontroller drives system logic and the screen, and a CM1332-DAT front-end protects the three-series pack.
Key points
- AP03-10K: 10500mAh at 3.7V (38.85Wh), 65W max USB-C output, 22.5W USB-A, 30W input
- 123.34 x 47.19 x 45.28mm, 346.0g, about 70.5cm captive cable; CE, FCC and RoHS listed
- PD3.0/PPS, UFCS 1.0, QC3+/QC5, FCP, SCP and AFC; iPhone 17 Pro Max measured 37.31W
- DK8065 GaN QR controller (700V, 200kHz, sub-50mW standby) and SW7201 buck-boost controller
Industry news compiled by Dangel Technology editorial from public reporting by Chongdiantou (charging industry media). Technical figures are reproduced as reported; verify specifications against the original source before design or procurement decisions.
Sourcing GaN USB-C chargers
Dangel Technology supplies GaN USB-C PD chargers from 20W to 600W on an OEM/ODM and private-label basis, with certification documentation arranged per model and destination market.