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- SKU: 08292
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Super Mini 3.7V 4.2V Type-C USB Lithium Battery Charging Module with Protection
The Super Mini 3.7V/4.2V Type-C USB Lithium Battery Charging Module with Protection is a compact and reliable charging solution designed for single-cell 3.7V Lithium-Ion (Li-ion) and Lithium-Polymer (Li-Po) batteries. Based on the widely used TP4056 charging IC and integrated battery protection circuitry, this module provides safe and efficient charging through a modern USB Type-C interface. It features a constant current/constant voltage (CC/CV) charging algorithm, automatic charge termination, and built-in protection against overcharge, over-discharge, over-current, and short circuits, ensuring longer battery life and enhanced safety.
Its ultra-compact size makes it ideal for space-constrained electronics projects, including portable devices, DIY power banks, IoT products, wearable electronics, robotics, and rechargeable battery-powered applications. LED indicators provide clear charging status, allowing users to monitor the charging process easily. Simply connect a 5V USB Type-C power source and a compatible 3.7V lithium battery to begin charging safely.
Features
- Supports single-cell 3.7V Li-ion and Li-Po batteries
- USB Type-C input for convenient charging
- Fixed 4.2V charging voltage
- Constant Current/Constant Voltage (CC/CV) charging
- Built-in protection against:
- Overcharge
- Over-discharge
- Over-current
- Short circuit
- Automatic charge termination and recharge
- LED charging and fully charged status indicators
- Compact, lightweight design
- Easy to integrate into portable electronic projects
Specifications
- Input Voltage: 5V DC via USB Type-C
- Charging IC: TP4056 or equivalent
- Battery Type: Single-cell 3.7V Lithium-Ion (Li-ion) / Lithium-Polymer (Li-Po)
- Full Charge Voltage: 4.2V ±1%
- Charging Method: Constant Current / Constant Voltage (CC/CV)
- Protection Functions:
- Overcharge Protection
- Over-discharge Protection
- Over-current Protection
- Short Circuit Protection
- Charging Status Indicator: Red LED (Charging), Blue/Green LED (Fully Charged) (may vary by module version)
- Input Interface: USB Type-C
- Operating Temperature: -10°C to +85°C
- Module Size: Super Mini Compact Design
- Applications: DIY Electronics, IoT, Wearables, Power Banks, Portable Devices, Robotics
Applications
- DIY rechargeable electronics
- Portable battery-powered devices
- IoT and wireless sensor nodes
- Power banks
- Wearable electronics
- Arduino, ESP32, and Raspberry Pi battery projects
- Robotics and embedded systems
Package Includes
- 1 × Super Mini 3.7V 4.2V Type-C USB Lithium Battery Charging Module with Protection
Warranty Terms :
Branded products (Waveshare/ Raspberry Pi/ Radxa/ DWIN etc) are as per brand warranty terms. Generic products are eligible for replacement within 7 days of delivery based on following conditions.
Products are eligible for a replacement if there is physical damage during transit or a clear manufacturing defect. Any claim for damage/ wrong items/ replacement must be made within 48 hours of successful delivery of the product. Requests for refund of amount or exchange of product(s) will be reviewed on a case by case basis and HUBTRONICS carries final rights to take a final decision on refund, store credit or exchange.
What to take care of ?
Most of our products are technical in nature and require trained personnel to handle them. Any kind of mishandling can result in damage or malfunctioning of the product, it is not possible for us to provide a replacement or refund if the product is damaged due to technical or physical mishandling.
Who pays the return shipping cost?
Free of cost return pickup from delivery address is eligible for products categorized as manufacturing defect/ Damage in transit/ Wrong items delivered. We do not support return pickup for any B2B order or offline orders not placed on website. Buyer need to arrange return shipping for B2B orders.
What voids warranty?
Please note that replacement/ return or refund is not possible if the product is not compatible with your system/application. Please check all the technical details/ dimensions etc. before ordering and contact us for any kind of clarifications.
If product is soldered/ programmed at any point or physically altered in any way, it is not eligible for return/ replacement. If the item requires soldering for testing, please ensure that you use suitable clips or jig to test it without soldering. Any kind of soldering job makes the product ineligible for return or replacement.
Following items are not eligible for return under any circumstances
- Device Programmers / Dongles
- Soldering Consumables (Wire, Flux etc)
