USB Charger for 7.4V LiPo Battery

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

• Product wiki
• More Documents

SHIPPING LIST

• USB Charger for 7.4V LiPo Batteryx1
• 14*14*7mm Aluminum cooling finx1
• 14*14*0.5mm Thermal conductive silicone padx1