Home › Forums › Mayfly Data Logger › Dying battery in winter solved by 3.5 W solar panel › Reply To: Dying battery in winter solved by 3.5 W solar panel
Hi, I note that the specs for the Mayfly state they only support a 2.5W solar panel. Here I see that you’re able to connect a 3.2W panel. How about a 6W panel (e.g., https://www.adafruit.com/products/1525) or 9W panel (https://www.adafruit.com/products/2747) or up to a 20-100W? We’re running Arduino Megas in the field hooked up to 12V marine grade batteries recharged via a larger 20-100W panel (e.g., https://www.amazon.com/ECO-WORTHY-20W-Solar-Panel-Polycrystalline/dp/B00PFGP0EA) and solar panel charge controller.
I should add that we’re powering a lot of sensors and components (Atlas Scientific specific conductance, BME280, Dallas 1-wire temp, XBee, FONA 808, Druck pressure transducer, LCD screen, real time clock, SD card, etc.).