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
In our loggers, I use 2000mAh batteries in sunny spots, a 4400mAh battery in shady spots, and a 6600mAh battery in really problematic areas. This, combined with the larger panel, and reducing the transmit rate of the radio/cell module (this is the biggest power hog) should get you though anything.
And to answer the question above, the Voltaic Systems panels come with a small barrel-type connector. If you want to use those panels with a Mayfly, you’ll need to connect it to the JST header on the Mayfly, by either cutting and splicing your own homemade cable to the panel, or by ordering one of their barrel-socket-to-bare-lead cables, available on their website.