TP4056 18650 Lithium Battery Charger Module 5V 1A w/ Protection

TP4056 18650 Lithium Battery Charger Module – 5V 1A with Dual Protection

The TP4056 18650 Lithium Battery Charger Module is a compact, reliable charging board designed for 18650 lithium cells and similar single-cell Li-ion batteries. Supporting Micro USB, Type-C, and Mini USB input interfaces, this versatile module fits seamlessly into DIY electronics projects, custom power banks, portable devices, and maker builds. It features built-in overcharge and over-discharge protection, giving you peace of mind during every charging cycle.

Whether you're prototyping a custom power supply or maintaining a fleet of rechargeable cells, this module delivers stable 1A linear charging with high accuracy (±1.5%) and a clear LED indicator — red for charging, green for fully charged. Available in packs of 1 to 10 pieces for maximum flexibility.

Made in Mainland China.

Key Features

• Dual Function: Integrated charging + battery protection circuit in one compact board
• Universal Input Ports: Compatible with Micro USB, Type-C, and Mini USB connectors
• Adjustable 1A Charging Current: Suitable for standard 18650 lithium battery cells
• High Charging Accuracy: ±1.5% precision for consistent, safe charging
• LED Status Indicator: Red = charging in progress; Green = fully charged
• Built-in Protection: Guards against overcharge, over-discharge, and short circuit
• Wide Operating Temperature: -10°C to +85°C for reliable performance in varied environments
• Compact PCB Design: Easy to integrate into custom enclosures and DIY projects
• Multi-Pack Options: Available in 1–10 piece quantities to suit your project scale

Technical Specifications

What's in the Box?

• 1–10 × TP4056 18650 Lithium Battery Charger Module (with protection)

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Learn more: EPA guidance on lithium-ion battery handling

Frequently Asked Questions

Q: What type of batteries is this TP4056 charger module compatible with?

A: This charger module is specifically designed for single-cell 3.7V lithium-ion (Li-ion) batteries, including the popular 18650 lithium battery format. It charges to a full charge voltage of 4.2V, which is the standard for most 18650 and similar Li-ion cells.

Q: Does this module include overcharge and over-discharge protection?

A: Yes! This is a dual-function charging board — it combines the TP4056 charging IC with a built-in battery protection circuit. It safeguards your battery against overcharging, over-discharging, and short circuits for safer, longer-lasting battery performance.

Q: Which USB connector types are supported as input?

A: The module is available with your choice of Micro USB, Type-C, or Mini USB input connector. Select the variant that matches your existing charging cables and power sources before ordering.

Q: Can I use multiple modules at once to charge several batteries?

A: Absolutely. That's exactly why this product is offered in packs of 1 to 10 pieces. Each module independently charges one battery, making multi-pack purchases ideal for DIY projects, maker labs, or any setup requiring multiple lithium cells charged simultaneously.

Q: Is reverse polarity connection supported?

A: No — reverse connection is not supported. Always ensure the battery is connected with the correct polarity (positive to positive, negative to negative) before powering on. Incorrect wiring may damage the module or the battery.

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.