New to eBikes - where to start?

Hey everyone!

Just got my first eBike – a commuter-style hardtail, and I'm already loving the extra boost on my 10-mile round trip to work, which includes a few decent hills. I'm totally new to eBikes and want to make sure I'm taking care of it properly from the get-go. Besides the usual chain lube and tire pressure, what are the absolute must-know maintenance tips for eBike newbies, especially regarding the battery and motor? Any specific tools I should invest in early on?