DFRobot

USB Charger for 7.4V LiPo Battery

Name: USB Charger for 7.4V LiPo Battery
Brand: DFRobot
SKU: DF-DFR0564
Price: 8.8 AUD
Availability: InStock

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Still using a big, bulky, traditional power adapter to charge your lithium battery? DFRobot provides you with a compact and efficient 7.4V lithium battery...

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Still using a big, bulky, traditional power adapter to charge your lithium battery? DFRobot provides you with a compact and efficient 7.4V lithium battery USB charger, only the size and weight of an ordinary Gravity sensor. With just a mobile phone AC adapter (or power bank) and an Android data cable, you can safely and efficiently charge the 7.4V lithium battery up to 1A, which commonly used in various robots and motor drivers. The light-weight and micro USB interface features make it ideal for outdoor applications. In addition to serve as a charger, it can also be embedded in a variety of 7.4V lithium battery-powered projects, adding a USB charging function to it, eliminating the need for battery swapping and the use of traditional bulky power adapters.

Board Overview

USB Charger for 7.4V LiPo Battery Board Overview
Connection Diagram

Use a mobile phone AC adapter or power bank to charge lithium battery

FEATURES

High efficiency boost type USB charger, designed for 7.4 lithium battery
Charge input and battery port reserved pads for easy modification and measurement
All-round protection of battery and power supply
Multifunction LED status indicator, system status at a glance
USB ESD shell

APPLICATIONS

Robots and motor drivers
Lithium battery charger

SPECIFICATION

Charge input voltage (USB IN)：3-6V (5V, typical for USB IN)
Battery input (BAT IN): 7.4V 2s cells Li-polymer/Li-ion battery
Maximum charge current: 1A trickle charging, constant current, constant voltage three phases charging
Charge cutoff voltage: 8.4V±1%
Charge efficiency: >90%
Protections
 BAT IN: over charge/reverse connection protection
 USB IN: adaptive input current limitation, over heat/reverse connection protection
Operation temperature: -40℃～85℃
Dimension: 28.0mm*37.0mm/ 1.1 * 1.46 inches

DOCUMENTS

Jargon buster

Plain-language definitions for the technical terms used above.

Gravity: Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
LED: A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
LiPo: A LiPo (lithium polymer) battery is a rechargeable lithium battery widely used in portable projects because it is light and compact. LiPo cells need correct charging circuitry and careful handling to stay safe, so equipment that supports LiPo generally includes charging or protection hardware suited to that battery type.