This kind of brings me back full circle.
In my case this will be sealed in a case so disconnecting the battery is not an option. I still want to minimize battery drain when not in use, that’s why I though the switch on the battery lead was a descent option, the downside being you have to switch it on to charge. That’s not a deal breaker for my case.
I’m also trying to keep it as small as possible, so I’d rather not add any expansion boards if I don’t have to.
I need to learn more on controlling the sleep modes and what they effect and maybe using a momentary button rather that a latching On/Off switch to enter and exit sleep mode.