DC Step Up Booster Module – Simultaneous Charge & Discharge for 18650 Lithium Batteries

The DC 5V–12V Step Up Booster Module is a compact, high-efficiency power conversion board designed for makers, hobbyists, and electronics engineers. Whether you're powering a camera, building a portable power supply, or prototyping a custom UPS circuit, this versatile boost converter module delivers stable, regulated output voltage with simultaneous charging and discharging capability — all in a tiny SMD package.

Key Features

Flexible Output Voltage: Available in DC 9V or DC 12V output configurations to suit a wide range of applications
Wide Input Voltage Range: Accepts DC 5.0V–12.0V input, compatible with USB power banks, wall adapters, and battery packs
Simultaneous Charge & Discharge: Supports charging the connected 18650 lithium cell while supplying power to the load — ideal for UPS-style circuits
Dissipation Power: Up to 9W (9V model) / 12W (12V model)
Compact Form Factor: 50 × 20 × 6.3 mm — easy to integrate into tight enclosures and DIY builds
Broad Operating Temperature: -40°C to +85°C, suitable for demanding environments
SMD Construction: Clean, surface-mount design for reliable, low-profile performance
Multi-Use Applications: Cameras, power supply modules, portable devices, DIY electronics projects, and more

Specifications

Input Voltage	DC 5.0V – 12.0V
Output Voltage	DC 9.0V or DC 12.0V (per selected variant)
Dissipation Power	9W (9V) / 12W (12V)
Operating Temperature	-40°C to +85°C
Dimensions	50 × 20 × 6.3 mm
Package Type	SMD
Condition	New

Available Options

1PCS DC 5V
5PCS DC 5V
1PCS DC 9V
5PCS DC 9V
1PCS DC 12V
5PCS DC 12V

Who Is This For?

This boost converter module is perfect for electronics enthusiasts, DIY project builders, and engineers who need a reliable, miniature power solution. Use it as a drop-in UPS module for Raspberry Pi projects, a power booster for cameras, or a regulated supply for custom portable devices powered by 18650 lithium cells.

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Learn more: EPA guidance on lithium-ion battery handling

Frequently Asked Questions

Q: What does this DC Step Up Booster Module do?

A: This step-up (boost) converter module takes a lower DC input voltage (5V–12V) and steps it up to a stable higher output voltage — either 9V or 12V depending on the variant you choose. It is designed for use with 18650 lithium battery cells and supports simultaneous charging of the battery while powering an external load, making it ideal for UPS (Uninterruptible Power Supply) style circuits, cameras, and portable electronics projects.

Q: Can this module charge the 18650 battery and power a device at the same time?

A: Yes! One of the standout features of this module is its ability to support simultaneous charge and discharge. This means you can have a power source (such as a USB adapter or power bank) charging the 18650 battery while the module simultaneously supplies regulated voltage to your connected device — a key requirement for reliable portable UPS builds.

Q: What applications is this booster module suitable for?

A: This module is well-suited for a wide range of applications including camera power supplies, DIY portable power packs, Raspberry Pi UPS circuits, custom electronics prototypes, and any project requiring a compact, regulated boost converter powered by an 18650 lithium cell.

Q: How many pieces do I receive and what variants are available?

A: You can choose from single-piece (1PCS) or 5-piece (5PCS) bundles, each available in DC 5V, DC 9V, or DC 12V output configurations — giving you flexibility whether you need one module for a single project or several for batch builds.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.