I Misunderstood, the link you sent for the battery says 1.5amps max not watts, I'll get a few of those batteries and find the smallest 2.5 watt panel I can that has a good rating and go from there
Thanks again for the info, hopefully this works out
So I have a 3.5 watt 6volt panel that does 600Ma and this buck converter D-PLANET [4-PACK] 5A DC-DC Adjustable Buck Converter 4~38v to 1.25-36v Step Down Power Supply High Efficiency Voltage Regulator Module I also have a 18650 3.7 Lithium Ion battery that is 2200Ma, I have the buck converter...
Or can I just use this and get rid of the Buck Converter?
Mudder 20 Pieces TP4056 Charging Module Battery Charging Board with Battery Protection 18650 BMS 5V Micro USB 1A 186 50 Charge Module
Thanks for the info but way to large all the way around, I'm thinking smaller something I can hang off a branch, with the 3 batteries I start out with about 3.6 volts and after 34 hours it goes to about 2.6 volts and shuts down so basically I loose 1 volt and some amp hours but I have no idea...
I am trying to figure out the best battery and solar panel to use with a small transmitter I have to pick up the animal sounds in the back yard (Birds,etc) This is what I have as far as specs
Output Power: 100 mW
Equivalent Noise: >= 30 dB
Power Supply Voltage: DC 3.0 V - 5.0 V
Operating...
Starting to understand it a bit more, it says max charging is 1.5watts so I could get away with a panel that puts out 1.5 watts and a converter then right? trying to be around 4 inch panel if possible