USB Charger for 7.4V LiPo Battery

If you have any questions on this product please feel free to contact us.

*Disclaimer: The images are merely illustrative.

INTRODUCTION

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 (MOT03011, MOT02057 and etc.). 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

Зарядка для 7.4V 2S LiPo батарей от dfrobot или переделываем зарядку Baofeng UV-5R

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

• Product wiki
• More Documents

SHIPPING LIST

• USB Charger for 7.4V LiPo Battery x1
• 14*14*7mm Aluminum cooling fin x1
• 14*14*0.5mm Thermal conductive silicone pad x1