![Need help choosing a battery and charging module for my Arduino robot - Robot Parts - RobotShop Community Need help choosing a battery and charging module for my Arduino robot - Robot Parts - RobotShop Community](https://www.robotshop.com/community/forum/community/forum/uploads/default/original/3X/b/4/b44107859bcd0c5005356b0dab7dd3af599c91be.jpeg)
Need help choosing a battery and charging module for my Arduino robot - Robot Parts - RobotShop Community
![Can i power this 'nodemcu esp8266 v3' using 7.4v or 8v power source in its microusb. actually i have two li-ion battery(3.7v) so , i am going to connect this battery in Can i power this 'nodemcu esp8266 v3' using 7.4v or 8v power source in its microusb. actually i have two li-ion battery(3.7v) so , i am going to connect this battery in](https://preview.redd.it/6qquknlzh5d71.jpg?width=640&crop=smart&auto=webp&s=7de29b2c2e1a091b8085f4beb46763febc4eedd2)
Can i power this 'nodemcu esp8266 v3' using 7.4v or 8v power source in its microusb. actually i have two li-ion battery(3.7v) so , i am going to connect this battery in
![7.4V Two Step Lithium Battery Charger Circuit - CC and CV mode | Battery charger circuit, Lithium battery charger, Battery charger 7.4V Two Step Lithium Battery Charger Circuit - CC and CV mode | Battery charger circuit, Lithium battery charger, Battery charger](https://i.pinimg.com/736x/a4/e5/a6/a4e5a6df0eed7f750ff2617bbad08f7d.jpg)
7.4V Two Step Lithium Battery Charger Circuit - CC and CV mode | Battery charger circuit, Lithium battery charger, Battery charger
![2S 7.4V 8A Peak Current 15A 18650 Lithium Battery Protection Board With Over-Charge Protection – Arduino Tech 2S 7.4V 8A Peak Current 15A 18650 Lithium Battery Protection Board With Over-Charge Protection – Arduino Tech](https://www.arduino-tech.com/wp-content/uploads/2018/07/6363d93a-b11e-44ab-8aa3-1d5dc7cb675e.jpg)