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TEARDOWNTeardown: Anker Zolo 55W 20000mAh Power Bank With Built-In Cables
Two series 10000mAh cells, twin buck-boost stages and a three-port protocol controller sit behind a power bank certified to China's 2026 national standard.
Oct 4, 2026 · Dangel Technology editorial
Anker's Zolo 55W power bank, model A110W, is among the company's first units to carry China's 2026 national-standard 3C certification. It pairs a 20000mAh-class capacity with 55W total output and lists UFCS, PD, QC, AFC, FCP, SCP and Xiaomi HyperCharge support. Two braided USB-C cables are built into the top of the case and can fast-charge two devices at once.
Nameplate data gives a 74Wh pack from two 10000mAh series cells at 7.4V, a rated 11500mAh at 5V/3A and a 45W maximum USB-C input. Each of the three USB-C paths is rated up to 55W and the USB-A port up to 33W, for 55W total. Measured size is 121.60 by 74.16 by 33.04mm at about 396.9g, with a roughly 14.5cm built-in cable.
POWER-Z KM003C testing found no E-Marker on the C1 cable, while C2 carries a Hynetek HUSB332D E-Marker rated to 240W. C1 supports PD3.0 and Xiaomi HyperCharge with fixed PDOs up to 20V/2.75A plus two PPS ranges; C2 and C3 add UFCS 1.2, QC3.0, FCP, SCP, AFC, DCP and Apple 2.4A.
Inside, a two-layer PCBA sits above an independent BMS board, and both shell halves carry graphite thermal pads. The pack uses two LIWINON C16280 cells of 10000mAh and 37.00Wh each. Conversion runs through two independent buck-boost paths, each built on a Southchip SC1815A synchronous buck-boost controller in QFN32 with four Leadteck LT7427FLQ 30V NMOS switches.
Protocol control comes from a Southchip SC2006A controller that supports three Type-C DRP ports, and system logic plus app interaction run on a Chipsea CS32F10CBW6 Arm Cortex-M3 MCU at up to 72MHz. Cell protection and gauging use a Chipsea CBM8570 front-end with two Leadteck LT3055FLXQ protection MOSFETs and an NTC thermistor.
Key points
- Model A110W: 20000mAh-class, 74Wh from two 10000mAh series cells, 55W total output
- Three USB-C paths rated 55W each, a 33W USB-A port and 45W maximum USB-C input
- C2 cable E-Marker Hynetek HUSB332D rated 240W; C1 cable has no E-Marker
- Two Southchip SC1815A buck-boost stages with Leadteck LT7427FLQ 30V NMOS switches
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.
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