AAA Battery Card

The AAA battery card efficiently provides 5V@500mA from two alkaline or rechargeable batteries.
Availability: In stock
  • Buy 5 for $21.51 each and save 10%
  • Buy 10 for $20.32 each and save 15%
  • Buy 50 for $19.12 each and save 20%

Dry battery is one of the most commonly used power supply, convenient, small size, and easy to access. It is widely used in a variety of small electronic equipment, such as remote control, razor, clock, and toy car, etc. As early as 1800, the prototype of battery was invented. It finally became what it is now after a long history of development and evolution.

According to the size of dry battery, there are several different models. The most commonly used models are AA and AAA. Dry batteries has tow sides, positive and negative. When using, it should be placed into the battery holder correctly as the icons tells. Whit this, it is quite easy to maintain wireless mobile power for various electronic projects.

AAA battery Card efficiently provides 5V-800mA from two alkaline or rechargeable batteries. It is based on the PS7516 high efficiency PWM DC/DC converter, allowing the output to remain 5V regulated for input voltages down to 1.9V, depending on the load current.

Longan Cards is a unique open source development platform designed by Longan Labs. As a plug and play development platform, Longan Cards allows you to quicky build wide array of prototypes and applications in no time. A full set of Arduino libraries and plenty of example codes are available to play with Longan Cards platform.

NOTE: AAA battery is NOT included.


  • • Output: 5V@500mA
  • • 2xAAA Battery
  • • Power indicator LED
  • • Power ON/OFF switch
  • • Featured PS7516 DC/DC converter
  • • Connection: Goldfinger / Cable
  • • Dimension: mm


Longan Cards:

Longan Cards is a unique open-source development platform designed by Longan Labs. As a plug and play development tool, Longan Cards allows you to quickly build wide array of prototypes and applications in no time. A full set of Arduino libraries and plenty of example codes are available to play with Longan Cards system.

↑ Longan Cards system consists of Cards and Boards. There are many gold finger antennas on Card and several gold finger sockets on Board. They are combined together through sockets interpolation, which is intuitive and easy to use. With this unified and flexible interface, you can realize a variety of ideas. Many more Boards with different themes would luanch to help people explore more fun.

↑ Longan Cards modules are classified into many types. Firstly, the main control cards which are the heart of Cards system, run the code and take charge of the exchange of data between modules. Besides Carduino, you can also use MicroBit, Arduino and other development board through connection board. The sensor cards can detect data of surrounding such as temperature and air pressure, etc. The inputs cards allows you to do some operations, such as buttons, knobs, etc. The output cards give feedback in various forms, such as buzzers, motor drives, etc. The communication cards can transmit data in many ways, such as Bluetooth and 4G network. The power cards supply power for electronic projects, including batteries, DC, etc. And other cards, mainly do some auxiliary work, such as expansion, code downloading, etc.

↑ STEM is an acronym for science, technology, engineering, and math. STEM education began in the United States in the 1990s. It is an interdisciplinary teaching method that combines STEM content and real life situations, which helps stimulate students’ original curiosity and thirst for knowledge and novelty. Longan Cards contains dozens of modules, involving a wide range of knowledge in the process of use, including electronic circuit, mechanical structurenature, programming, science of nature, daily wisdom, and humanities, etc. It is a powerful tool for STEM education at fields of electronic prototyping, science experimentation and DIY project.

Write Your Own Review
You're reviewing:AAA Battery Card