1S Li-Ion Battery Charging Module 5V with LED Indicator

1S Lithium-Ion Battery Charging Module with 5V Input & LED Indicator

Take your DIY electronics projects to the next level with this compact and efficient 1S Lithium-Ion Battery Charging Module. Designed for single-cell lithium battery charging, this module delivers up to 93% output efficiency, features a built-in LED charging indicator, and includes multiple layers of onboard protection — making it a dependable choice for hobbyists, makers, and engineers alike.

Key Features

• High Efficiency: Achieves output efficiency of 93% or more for fast, reliable charging.
• 5V Supply Voltage: Works seamlessly with standard 5V USB power adapters and power banks.
• LED Charging Indicator: Red light signals active charging; blue light confirms the battery is fully charged.
• Low Power Consumption: Engineered for minimal standby draw — no anti-backwash current diodes required.
• Automatic Input Current Identification: Intelligently adapts to different adapters for optimized charging.
• Multiple Protection Mechanisms: Built-in overcharge protection, output short-circuit protection, and over-temperature protection keep both the module and your battery safe.
• NTC Switch Support: The two NTC points can be connected to a switch — triggering a short circuit stops charging automatically.
• Parallel Battery Support: Multiple batteries can be connected in parallel (not in series) for expanded capacity.
• Wide Operating Temperature: Functions reliably from -40°C to 85°C, suitable for demanding environments.
• Premium Build Quality: High-quality components with a clean, well-arranged PCB layout for durability and longevity.

Technical Specifications

Wiring Guide

• B+: Connect to the positive terminal of the battery.
• B-: Connect to the negative terminal of the battery.
• Note: Do not connect the battery in reverse. The current rating refers to the battery terminal current, not the 5V input current — the 5V input current will always be lower than the battery terminal current. Higher charging currents will generate more heat; ensure adequate ventilation.

What's in the Box

• 1x Lithium Battery Charging Module

Learn more: ENERGY STAR product efficiency guidance

Frequently Asked Questions

Q: What type of battery is compatible with this 1S lithium-ion charging module?

A: This module is designed specifically for single-cell (1S) lithium-ion and lithium-polymer batteries. Multiple batteries can be connected in parallel to increase capacity, but they must NOT be connected in series. Always ensure battery wires are not too thin or too long to avoid voltage drop or overheating.

Q: What does the LED indicator light mean on this charging module?

A: The module features a two-color LED indicator: a red light indicates the battery is actively charging, and a blue light indicates the battery is fully charged. This makes it easy to monitor charging status at a glance without any additional equipment.

Q: Is this lithium battery charging module safe to use in DIY projects?

A: Yes. The module includes multiple built-in safety features, including overcharge protection, output short-circuit protection, and over-temperature protection. The NTC terminal can also be wired to an external switch for additional safety control. Always follow correct polarity when connecting your battery — reverse connection is not supported and should be avoided.

Q: What power supply does this module require?

A: The module operates on a standard 5V input, making it compatible with common USB adapters and power banks. It automatically identifies the input current and adapts accordingly, so no manual configuration is needed for most setups.

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.