Ambient Weather Support

The Osprey uses a super capacitor as the energy storage device, and back up non-rechageable Lithium batteries. It is a better design because of the limited life of rechargeable batteries.

We recommend non-rechargeable Energizer Lithium Ultimate batteries over rechargeable batteries:

https://www.amazon.com/Energizer-Ultimate-Lithium-Batteries-Each/dp/B00003IEME

They operate between -40 °F and 140 °F (-40 to 60 °C).  They will not damage the weather station or the batteries because of the low charging current.