Power arduino nano with battery

Hi everyone :smiley:

I'm working on a project and I need to power my arduino nano with a rechargeable battery because this project will be embedded.

I know that there is a lot of subject about it but I never found an answer for my problem.

I need a Lipo or Li -Ion battery, 7.4V or 11.1V, not too big. I heard that I will need a security circuit to avoid the battery to power while it is too low. I also need to have a circuit to charge it if possible.

I just want to avoid to use rechargeable AAA... but if I can't I will understand.

Do you know where Ican provide this kind of components?

Thanks you in advance for your help. Have a nice evening and sorry for my english, I'm French :smiley:

Sparkfun has several battery monitoring circuits you can use with Li cells. Adafruit as well.
Many multiple cell batteries are also smart now and will turn off and not allow overdischarge. Read carefully.