Lithium cells voltage increase

[khaan_24]

i have 2 lithium cells 3.7volt each
and a charging module
my circuit need only 5 volt
but i want to recharge these cells as well
what can i do
how i connect these cells

[J-M-L]

you can find Balanced 2S Chargers

if you need 5V out, you then need to add a buck converter

[khaan_24]

and how i charge the cells?

[gilshultz]

You will have to purchase or build a Li charger.