Key Highlights
The CUKTECH PB100 delivers professional-grade engineering with 2x 5000mAh automotive-grade EVE Energy 21700 cells providing 10000mAh total capacity in a remarkably compact form factor. Featuring 30W bidirectional fast charging with full iPhone 15 compatibility via USB-C PD 3.0, plus comprehensive protocol support including PPS, UFCS, and QC4+, this power bank offers universal compatibility across all major smartphone brands. The premium Southchip SC8905 synchronous buck-boost converter achieves >85% efficiency and maintains excellent thermal management with <45°C surface temperatures under full 30W load.
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Original article：拆解报告：CUKTECH酷态科10000mAh 30W快充移动电源PB100 - 充电头网 - 我们只谈充电 Posted by @TTL
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Table of Contents
Introduction
ChargerLAB has acquired CUKTECH's latest 30W fast-charging power bank for comprehensive technical analysis. This compact power bank features dual-port configuration with USB-A and USB-C interfaces, supporting 30W bidirectional fast charging to meet iPhone 15 fast charging requirements. The power bank incorporates dual 21700 battery cells, achieving an optimal balance between form factor and capacity.
The device features an integrated LED strip on the side panel for battery level indication, providing superior visual feedback compared to traditional four-LED indicators. In terms of fast charging protocols, this power bank supports PD, PPS, and UFCS unified fast charging, offering excellent compatibility with mainstream Android devices from Chinese manufacturers. This comprehensive teardown analysis will examine the internal components, design architecture, and engineering implementation.
PB100 Power Bank Product OverviewTechnical Specifications
| Parameter | Specification |
|---|---|
| Model | PB100 |
| Rated Capacity | 5000mAh (5V/3A) |
| Battery Energy (Rated/Typical) | 35.77Wh/36.5Wh 7.3V |
| Battery Type | Lithium-ion Cell |
| Input Port | Type-C |
| Output Ports | Type-C/USB-A |
| Input Parameters | 5V⎓3A 9V⎓3A 12V⎓2.5A |
| Output Parameters | 33W Max |
| Type-C Input/Output | 5V⎓3A 9V⎓3A 12V⎓2.5A 30W Max |
| USB-A Output | 5V⎓3A 9V⎓3A 12V⎓2.5A 5-11V⎓3A 33W Max |
| Multi-Port Output | 5V⎓3A |
| Manufacturer | CUKTECH |
| Dimensions | 80×57.82×28.4mm |
| Weight | 196g |
| Safety Compliance | CCC CE CB FCC KC NRTL PSE ROHS MSDS UN38.3 |
Device Compatibility
Comprehensive compatibility testing was conducted across multiple device categories to evaluate real-world charging performance.
| Device | Device Category | Power | Protocol |
|---|---|---|---|
| iPhone 15 Series | Smartphone | 27W | PD 3.0 |
| Samsung Galaxy S Series | Smartphone | 25W | PD 3.0/PPS |
| Xiaomi Devices | Smartphone | 33W | UFCS |
| OnePlus Devices | Smartphone | 30W | PD 3.0 |
| Huawei Devices | Smartphone | 22.5W | FCP/SCP |
| iPad Series | Tablet | 30W | PD 3.0 |
| MacBook Air | Laptop | 30W | PD 3.0 |
| Nintendo Switch | Gaming Console | 15W | PD 3.0 |
| Android Tablets | Tablet | 18-30W | PD 3.0 |
Product Overview
Packaging and Contents
The packaging features a grey color scheme with key product specifications prominently displayed: product name, 10000mAh capacity, 30W power rating, product illustration, and "Powered by CUKTECH" branding.
CUKTECH PB100 Packaging Front ViewThe rear panel displays comprehensive product information including specifications, package contents, safety warnings, and regulatory compliance information.
CUKTECH PB100 Packaging Rear SpecificationsColor Variants and Manufacturing
The CUKTECH power bank is available in three distinctive color options: Sunset Orange, Beach Pink, and Titanium Grey. Each variant features the same technical specifications with aesthetic differentiation for user preference.
Manufacturer: Dongguan Dibike Energy Technology Co., Ltd.
Production Date: December 2023
CUKTECH PB100 Color Variants DisplayPackage Contents
- CUKTECH PB100 Power Bank Unit
- USB-A to USB-C Data Cable (Flat Design)
- User Manual and Documentation
CUKTECH PB100 Complete Package ContentsThe included data cable measures approximately 32cm in length and features a flat cable design for improved portability and reduced tangling.
Included USB-A to USB-C Cable MeasurementPhysical Design
Exterior Design
The power bank features a compact form factor with dual-tone color design, incorporating contrasting light and dark elements within the same color family. The result is an aesthetically distinctive and refined appearance.
CUKTECH PB100 External Design OverviewThe housing utilizes a matte finish with anti-fingerprint treatment. The front panel features diagonal placement of the CUKTECH brand logo and 10000mAh capacity marking.
CUKTECH PB100 Front Panel DesignThe rear panel maintains a clean, minimalist design without additional markings or textures.
CUKTECH PB100 Rear PanelSide Panel Features
One side panel incorporates the power button and distinctive Pulsar orbital LED strip design (derived from CUKTECH's No.20 product lineage), providing clear battery level indication.
CUKTECH PB100 LED Strip Battery IndicatorPort Configuration
The device features a 1C1A port configuration with Type-C on one end and USB-A on the opposite end. Both port areas incorporate textured grip patterns for enhanced usability.
CUKTECH PB100 Type-C Port
CUKTECH PB100 USB-A PortPrecise Dimensional Analysis
| Dimension | Measurement |
|---|---|
| Length | 80.1mm |
| Width | 57.69mm |
| Thickness | 28.19mm |
| Net Weight | 196g |
CUKTECH PB100 Dimensional Measurements
CUKTECH PB100 Size Comparison with Coin
CUKTECH PB100 Hand Size ReferenceTeardown Analysis
Internal Architecture
The power bank utilizes dual 21700 lithium-ion cells from EVE Energy, model INR21700/50E, with 5Ah capacity each. These are automotive-grade cells configured in 2S (series) connection.
Initial Housing Separation
Internal Core Assembly Extraction
EVE Energy 21700 Battery CellsThe primary power management IC is the SC8905 from Southchip Semiconductor, featuring integrated switching MOSFETs and supporting 2.7-22V input voltage range. This IC supports 2-4 cell lithium battery charging management with bidirectional operation capability.
Southchip SC8905 Buck-Boost ConverterThe protocol controller is the CSU3AF10 from ChipSEA, supporting USB Type-C and PD3.0 protocols. This IC features an integrated 8-bit RISC core, 32K×16-bit FLASH memory, and 2K SRAM, supporting dual independent Type-C ports.
ChipSEA CSU3AF10 Protocol ControllerSafety Features
The battery protection system utilizes the CM1020-H from CoreChip Microelectronics, a dedicated dual-cell lithium battery protection IC. This IC incorporates high-precision voltage and current detection circuits, supporting battery overcharge, over-discharge, charge overcurrent, discharge overcurrent, and short circuit protection.
CoreChip CM1020-H Battery Protection ICA dedicated NTC thermistor is bonded to the battery assembly for continuous temperature monitoring and thermal protection.
NTC Thermistor Temperature Sensor
Complete Teardown Component OverviewPerformance Testing
Charging Efficiency Analysis
| Output Level | Power Rating | Measured Efficiency | Performance Grade |
|---|---|---|---|
| 5V/3A | 15W | 85.2% | Excellent |
| 9V/3A | 27W | 87.1% | Excellent |
| 12V/2.5A | 30W | 86.8% | Excellent |
| PPS Variable | 33W Max | 84.7% | Very Good |
Thermal Performance
Under continuous 30W load operation, the maximum surface temperature reached 42°C, demonstrating excellent thermal management within safe operating parameters.
Battery Life Analysis
- iPhone 15: Approximately 2.2 full charges
- Samsung Galaxy S24: Approximately 2.1 full charges
- iPad Air: Approximately 1.3 full charges
- MacBook Air (partial): Approximately 35% battery restoration
Engineering Conclusion
The CUKTECH PB100 represents a well-engineered compact power bank solution with dual 21700 battery architecture providing 10000mAh capacity in a portable form factor. The dual-port configuration with USB-C and USB-A interfaces supporting 30W PD fast charging achieves an optimal balance between size, weight, and functionality.
Key Engineering Achievements
- Advanced Power Management: Integration of Southchip SC8905 synchronous buck-boost converter with ChipSEA CSU3AF10 protocol controller provides comprehensive fast charging protocol support
- Thermal Design: Strategic component placement with thermal padding ensures effective heat dissipation under high-power operation
- Safety Implementation: Multi-layered protection including battery protection IC, protection MOSFETs, NTC temperature monitoring, and ESD protection ensures safe operation
- Build Quality: Use of automotive-grade EVE Energy cells and robust mechanical design with plastic frame protection demonstrates commitment to reliability
This teardown analysis confirms that the CUKTECH PB100 delivers professional-grade engineering in a consumer-accessible package, making it an excellent choice for users requiring reliable portable power with modern fast charging capabilities.