Hi,
I'm fairly new to using rechargeable batteries in my projects. Generally they are all powered by DC adapters or single use batteries.
In this project I'm making a Bluetooth speaker. I'll be using an Arduino to contol some basic functions such as lighting and wireless commands.
My question is how do I attach a battery charger to a battery and the rest of the circuit? Do I add a diode in front of the charger to stop any "backwards" current into the charger? Could that even happen? Similarly, can I power the circuit and charge the battery at the same time by hooking them up in parallel?