BS004 Lithium Battery Shield - Rechargeable 18650 Dual Cell - 3V/1A 5V/3A Micro USB - Power Bank Battery Charging Module - for Raspberry Pi, WiFi Router, arduino, ESP8266, ESP32

• Battery shield for Arduino raspberry pi esp-32 esp8266 with Switching Booster circuit is a portable mobile power supply.
• This is a battery shield for all kinds of MCU that operate at 5V or 3.3V it can make a regulated fixed 5v and 3.3V DC voltage to run the development board easily
• You can easily install the shield on your Arduino Uno and use your other shields too
• The shield has a tiny switching power supply that can make fixed regulated 5V DC and 3.3V DC even if the batteries voltage drops down
• The shield works with 2 18650 size batteries and has an ON/OFF switch
• 5V voltage output rated current is 2.2A, maximum support 3A current (not recommended for overload, easy to damage the module, speed up the service life), the output of current depends on the quality of the 18650 battery!
• Special attention: the installation of the battery must be determined positive and negative, the board has been clearly marked positive and negative! Installation errors will burn out the module!
• NOTE: Batteries are not included, please buy them separately.

Specification:

• Charging interface: MicroUSB (Android port); Batteries NOT Included
• Charging voltage: 4.5V~5.5V; Charging current: 580mA max; Lithium Battery Model: 18650; Discharge current: 1800mA
• Output interface: 2.5mm header and standard USB socket
• 5V output current: 3A max; 3V output current: 1.0A max
• Charging indicator: red light during charging, full green light