Description
The Discharge UPS Protection Board (Model: TDJL3.7V12VPOWER) is a compact, high-efficiency battery management and step-up boost module engineered to provide an uninterrupted power supply (UPS) for low-voltage electronic devices. Operating from a wide DC input range of 5.0V to 12.0V, it supports simultaneous battery charging and discharging, seamlessly switching to battery power to deliver a stable 9V or 12V output (9W/12W power rating) during mains power interruptions.
Designed specifically for use with 3.7V lithium or lithium-polymer batteries up to 15Ah capacity, this module features built-in short-circuit protection and operates reliably across extreme industrial temperature ranges (-40°C to +85°C). It is an ideal drop-in power solution for DIY backup power supplies, portable instruments, routers, network equipment, and continuous monitoring systems.
Note: Product images are for reference only; actual component layout or board silk-screening may vary slightly based on manufacturing batches.
Key Features
- Simultaneous Charge & Discharge: Advanced circuitry supports uninterrupted power flow by charging the backup battery while simultaneously powering the connected load.
- Selectable / Fixed Step-Up Output: Converts low-voltage power inputs (DC 5.0V–12.0V) into a steady, boosted output at 9V or 12V.
- High Battery Compatibility: Fully compatible with standard 3.7V single-cell lithium-ion or lithium-polymer battery packs up to 15,000mAh (15Ah).
- Compact PCB-Mount Footprint: Small, lightweight form factor optimized for direct integration into custom enclosures and compact electronic projects.
- Robust Safety Protections: Built-in short-circuit defense safeguards both the module and connected circuitry against electrical faults.
- Extreme Temperature Tolerance: Engineered to perform reliably in harsh environmental conditions ranging from -40°C to +85°C.
Benefits
- Uninterrupted Power Continuity: Prevents system reboots and data loss by providing instant backup power switching during power outages.
- Space Optimization: Tiny physical footprint allows effortless integration into tight router housings, mini-UPS builds, and portable enclosures.
- Cost-Effective DIY Backup: Easily turn standard 3.7V lithium cells into a professional-grade mini uninterruptible power supply.
Applications
- Mini UPS & Router Backups: Perfect for keeping Wi-Fi routers, modems, and network switches powered during sudden power cuts.
- Portable Instrumentation: Reliable DC power conversion for field-testing gear and portable electronic instruments.
- IoT & Smart Home Devices: Continuous power source for remote sensors, security cameras, and automated micro-controllers.
- DIY Battery Power Packs: Ideal core module for custom rechargeable power banks requiring regulated 9V or 12V outputs.
Package Includes
- 1 x Charging Step-Up Booster Module Fixed 12V (UPS Protection Board)
Specifications
| Parameter | Specification |
|---|---|
| Item Type | Uninterruptible Power Supply (UPS) Step-Up Protection Board |
| Model Number / Type | TDJL3.7V12VPOWER |
| Input Voltage Range | DC 5.0V – 12.0V |
| Output Voltages / Power | 9V / 12V (9W / 12W Power Output) |
| Supported Battery Type | 3.7V Lithium-Ion / Lithium-Polymer Batteries (Up to 15Ah) |
| Power Source | Battery Powered / External DC Input |
| Mounting Type | PCB Mount |
| Operating Frequency | 50 Hz |
| Protection Features | Short-Circuit Defense, Simultaneous Charge/Discharge Safeguards |
| Operating Temperature | -40°C to +85°C |
| Shipping Weight | 0.01 kg |
| Shipping Dimensions | 12 × 7 × 2 cm |
