Can I use a 3.7V battery for a 3.3V board?

[macanrezaiiii]

@anon35827816

Yes. When freshly charged, the voltage will be significantly above 3.7V; more like 4.1V or so. That's 0.8V above the voltage you're supposed to apply to a 3.3V board. Not a good idea.

He said Not a good idea.