Name: 18650 Battery Step-Up Module | Type-C UPS Power Supply 5V/12V
Brand: Sun Cheong Computer Company Limited
SKU: 21PS002191-5V
Price: 186.0 TWD
Availability: InStock

Short Product Description

Never lose power mid-project again. This Type-C 18650 Battery Step-Up Module acts as an ultra-reliable Uninterruptible Power Supply (UPS) for your critical 5V or 12V electronics. Featuring seamless power failover, up to 96% boost efficiency, and a built-in battery tray, it is the ultimate compact power backbone for IoT devices, routers, and DIY engineering builds.

Key Features

Seamless UPS Failover: Automatically switches to battery power instantly when the main Type-C input is disconnected, preventing device reboots or data loss.
High-Efficiency Boost Output: Integrated 12A MOS achieves up to 96% conversion efficiency, providing a stable 5V (2A) or 12V (1A) output.
Comprehensive BMS Protection: Built-in safeguards against over-charge, over-discharge, over-temperature, and short-circuits ensure long-term battery health.
Ultra-Low Standby Draw: Operates at a low 25mA static consumption, which can be further reduced by removing the LED indicator for deep power-saving applications.
Expandable Capacity Setup: Supports multiple 18650 batteries wired in parallel, allowing you to easily scale your overall mAh capacity.
Compact All-in-One Design: Measures just 89x42x22.4mm with an integrated back-mounted battery box for space-saving integration into custom enclosures.

Full Product Description

Continuous Power for Your Critical Electronics

Power outages and unstable connections can ruin hours of hard work or disable vital security equipment. The 18650 Lithium Battery Charger & DC-DC Booster Converter is engineered to eliminate power interruptions. By combining a high-efficiency boost circuit with intelligent UPS switching, this module ensures your devices stay online, automatically transitioning to battery power the millisecond the main Type-C input is cut off.

Engineered for Efficiency and Safety

Running high-drain devices requires stable, clean power. Equipped with a built-in 12A high-current MOS, this step-up board delivers a rated 15W (with peaks up to 20W) with an impressive 96% conversion efficiency. You are fully protected against the most common electrical faults. The onboard Battery Management System (BMS) actively guards against over-charging, over-discharging, over-temperature, and over-current scenarios, preserving the lifespan of your 18650 cells.

Customizable for Advanced Engineering

Flexibility is built into the design. Need to conserve every drop of power for a remote, off-grid IoT sensor? Simply desolder the output LED indicator to slash the static power consumption by over 10mA. Building a larger power bank? Easily wire multiple 18650 cells in parallel to scale your capacity without interfering with the UPS logic. Whether you are running a 5V microcomputer or a 12V CCTV camera, this compact module is the silent, reliable engine driving your project forward.

Technical Specifications

Input Interface: Type-C USB (5V)
Output Voltage: Selectable: 5V or 12V (Note: Some variants include 9V option)
Output Current: 2A (at 5V) / 1A (at 12V) (Variants up to 3A at 5V under lighter loads)
Power Output: 15W (Rated) / 20W (Peak)
Battery Compatibility: 18650 Lithium-ion (Single slot included) (3.7V Li-ion, protection integrated)
Conversion Efficiency: Up to 96% (Boost circuit with high-current MOS)
Static Power Consumption: ~25mA (Can be lowered by removing LED)
Dimensions: 89 x 42 x 22.4 mm
Protection Features: Over-charge, Over-discharge, Over-temp, Over-current (Auto-recovery on 5V input)

Delivery Options

Local delivery within Hong Kong and in-store pickup.
Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
In-store pickup details (location and time) will be confirmed by email or phone message.
Delivery times are estimates and may be affected by weather or unforeseen circumstances.

FAQ Section

Q: The module entered protection mode and stopped outputting power. How do I reset it?
A: If the board triggers a safety shutdown due to a short-circuit or miswiring, simply plug a 5V power source into the Type-C port for a few seconds. This will instantly wake up the BMS and restore normal output.

Q: My 5V power supply takes a long time to drain when turned off, causing a delay in the UPS switchover. How can I fix this?
A: Some wall adapters use large output capacitors that slowly discharge. To ensure an instant UPS switchover, connect a 1K discharge resistor in parallel to the 5V input port on the module to drain residual voltage quickly.

Q: Can I use a battery larger than a single 18650 cell?
A: Yes. While the built-in tray holds one 18650 battery, you can wire multiple lithium cells in parallel to increase your total runtime capacity without affecting the charging or step-up functions.

Target Users / Applications

IoT & STEM Developers: Providing uninterrupted power for Raspberry Pi, Arduino, and remote sensor arrays.
Security Installers: Powering 12V CCTV cameras, access control systems, and network routers during grid outages.
Electronics DIY Hobbyists: Building custom portable power banks or modifying vintage electronics.