I am currently coding on a Seeeduino Stalker v2.3 - water proof kit.
It is sold with a solar panel to recharge the battery. Unfortunately, I will not have a lot of light where my sensor will be installed and I would like to power the board with a charger from 110V-220V plug and keep the battery only for potential power shortage.
my questions are :
what is the best option for connection and charger ?
I have a previous Arduino Uno charger (9V-1A), would it work with some linear regulator ? what wiring should I use ?
any recommendation for a Li-Ion battery that could I buy and that would last longer than this 3.7 V at 1000mA ?
Thank you for your help