Battery connect

How can I properly connect the lithium ion battery to the Adruino. Would it be through soldering or using female header pin and in gnd and 5v pins on arduino?

Never solder a battery directly, they can blow up. Always use connectors.

Ok thank you, so just connecting the female headers to batter connectors will be just fine? :o

How can I properly connect the lithium ion battery to the Adruino. Would it be through soldering or using female header pin and in gnd and 9v pins on arduino?

How can I properly connect the lithium ion battery to the Adruino.

What voltage battery?