Portable Buck-Boost ZK-4KX Case
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Description
🔋 Portable Adjustable DC Bench Power Supply (Battery Powered, CC/CV)
This is a compact, battery-powered adjustable DC bench power supply built around the ZK-4KX buck-boost converter module. It provides constant voltage (CV) and constant current (CC) control in a portable enclosure powered by 18650 lithium cells.
Perfect for makers, electronics hobbyists, and field troubleshooting where a wall outlet isn’t available.
⚙️ Features
• Adjustable output voltage (0.5V–30V depending on input)
• Adjustable current limit (CC mode for safe testing)
• Short-circuit protection
• Portable 18650 battery operation
• USB charging / UPS functionality
• Banana plug outputs for universal compatibility
• 5.5×2.1mm barrel compatibility
🔌 Typical Use Cases
• Powering ESP32 / Arduino projects
• Router or small DC device backup power
• Testing LED strips and modules
• Prototyping circuits safely
• Field diagnostics
• Portable lab supply for makers
🔋 Power Capability
Designed for approximately 10–15W continuous output when battery powered (depending on configuration and cooling).
Great for low to medium power electronics projects.
🛠 Build Notes
• Uses 1S (parallel) 18650 configuration
• Center-positive barrel standard
• Polarity reversible via banana terminals
🎯 Why This Design?
Commercial bench supplies are bulky and require AC power.
This build provides a compact, adjustable, battery-powered alternative that fits on a workbench or in a tool bag.
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License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.
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