DFRobot USB Charger for 7.4V LiPo Battery - Boost Converter Module
DFRobot USB Charger for 7.4V LiPo Battery - Boost Converter Module - Image 2
DFRobot USB Charger for 7.4V LiPo Battery - Boost Converter Module - Image 3
SKU: SENS-2946
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DFRobot USB Charger for 7.4V LiPo Battery - Boost Converter Module

₹629.00 (Inclusive of all taxes)
Out of Stock

The DFRobot USB Charger is a compact boost-type module designed to safely charge 7.4V LiPo batteries via a standard 5V USB input. It integrates comprehensive protection circuits and is ideal for robotics, motor drivers, and portable electronics projects.

Features

  • High-efficiency boost converter for charging 7.4V LiPo batteries from a 5V USB source.
  • Comprehensive protection includes over-charge, reverse polarity, over-temperature, and adaptive input current limiting.
  • Compact footprint (37mm x 28mm) and lightweight design suitable for embedded applications.
  • Multifunction LED indicator provides clear visual status of charging and system operation.
  • Includes thermal management accessories: aluminum cooling fin and thermal conductive silicone pad.

Out of stock

Description

This USB charger module eliminates the need for bulky traditional power adapters by utilizing a standard 5V USB power source, such as a phone charger or power bank, to efficiently charge 7.4V lithium polymer batteries. It employs a boost converter topology to step up the input voltage, delivering up to 1A of charging current to the battery pack.

The module is engineered for reliability and safety, featuring a suite of protection mechanisms on both the battery input (BAT IN) and USB input (USB IN) ports. These safeguards ensure stable operation across a wide temperature range from -40°C to +85°C. Its compact form factor and micro-USB interface make it highly suitable for integration into mobile robots, drones, and other portable electronic systems.

Key Features

  • Boost-type USB charger specifically designed for 2S (7.4V) lithium polymer batteries.
  • Integrated all-round protection: over-charge, reverse connection, over-temperature, and adaptive input current limiting.
  • Multifunction LED status indicator for immediate visual feedback on charging state and faults.
  • Exposed charge input and battery port test pads facilitate easy circuit modification and real-time measurement.
  • USB connector features an ESD-protected shell for enhanced durability.
  • Optimized thermal design supported by included aluminum cooling fin and conductive silicone pad.
  • High-value build for reliable, long-term integration into portable power systems.

Applications

  • On-board charging system for mobile robotics and motor driver platforms.
  • Portable power bank and field-deployable electronic equipment with 7.4V battery packs.
  • Embedded USB charging function for DIY drones and RC vehicles.
  • Backup power and maintenance charging for instrumentation and data loggers.

Technical Specifications

Item TypeAccessory / Power Module
Model NameUSB Charger for 7.4V LiPo
Input Voltage5V DC (via USB Micro-B)
Output Voltage7.4V (2S LiPo)
Max Charging CurrentUp to 1A
Operating Temperature-40°C to +85°C
Module Dimensions (L x W)37 mm x 28 mm
Shipping Weight0.025 kg

Frequently Asked Questions

What input voltage and source does this charger require?

The module requires a standard 5V DC input, which is typically supplied via a USB Micro-B cable connected to a USB wall adapter, computer port, or power bank. It incorporates adaptive input current limiting to protect the source.

What protections are included for the battery?

The charger provides comprehensive battery protection including over-charge protection to prevent voltage exceedance and reverse connection protection to safeguard against incorrect polarity wiring. These features ensure the longevity and safety of your 7.4V LiPo pack.

Can this module be embedded into a project permanently?

Yes, its compact size and exposed test pads make it ideal for permanent integration. The included aluminum cooling fin and thermal pad assist with heat dissipation in enclosed spaces. It adds a convenient USB charging function to any project powered by a 2S LiPo battery.

How do I interpret the LED status indicator?

The multifunction LED provides visual feedback on the charging process and system status. Typical indications include steady or blinking lights for charging in progress, a solid light for charge completion, and specific blink patterns to alert of any fault conditions such as reverse polarity or over-temperature.

Package Includes

  • 1 x USB Charger for 7.4V LiPo Battery Module
  • 1 x 14x14x7mm Aluminum Cooling Fin
  • 1 x 14x14x0.5mm Thermal Conductive Silicone Pad

Additional Information

Weight 0.025 kg
Dimensions 3.7 × 2.8 cm

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