GitHub - sparkfun/Photon_Battery_Shield: Battery Shield for the Spark Photon. Has a charging circuit, as well as a fuel gauge.
![Telechemistry: monitoring chemical reactions via the cloud using the Particle Photon Wi-Fi module - Reaction Chemistry & Engineering (RSC Publishing) DOI:10.1039/C9RE00043G Telechemistry: monitoring chemical reactions via the cloud using the Particle Photon Wi-Fi module - Reaction Chemistry & Engineering (RSC Publishing) DOI:10.1039/C9RE00043G](https://pubs.rsc.org/image/article/2019/RE/c9re00043g/c9re00043g-f1_hi-res.gif)
Telechemistry: monitoring chemical reactions via the cloud using the Particle Photon Wi-Fi module - Reaction Chemistry & Engineering (RSC Publishing) DOI:10.1039/C9RE00043G
![Particle Photon WiFi IoT Communications Module - IoT Devices & Sensors | Relay Controllers, Current Monitoring & Vibration Sensors Particle Photon WiFi IoT Communications Module - IoT Devices & Sensors | Relay Controllers, Current Monitoring & Vibration Sensors](https://media.ncd.io/sites/2/20170721142836/Photon-wBox.png)
Particle Photon WiFi IoT Communications Module - IoT Devices & Sensors | Relay Controllers, Current Monitoring & Vibration Sensors
GitHub - chrisb2/battery-monitor: Particle Photon based 12v car battery monitor. Useful for alerting you that the battery is becoming discharged.
Particle Photon Battery Test with 4-20 mA I2C sensor publishing to google sheets - Hardware - Particle
![Particle PWRSHLD Photon Power Shield Contains Battery, Charging Circuit Make Your Photon Portable : Amazon.sg: Electronics Particle PWRSHLD Photon Power Shield Contains Battery, Charging Circuit Make Your Photon Portable : Amazon.sg: Electronics](https://m.media-amazon.com/images/I/710PTdUdzUL._AC_UF894,1000_QL80_.jpg)