I have been making 9v battery circuits for amplifiers, but the one I wish to make will live inside a sealed enclosure, therefore if the battery runs out it cant be replaced. I need to make the battery a rechargeable one and build on an extra bit to the circuit to make it work, and also have another input to charge the battery.
Below I Linked the picture of the standard circuit I have been making, what do I need to add and how to create the scenario above?
**broken link removed**
Below I Linked the picture of the standard circuit I have been making, what do I need to add and how to create the scenario above?
**broken link removed**