Can I use this to charge multiple tools at once?

Yes. Multi-outlet design lets you run more than one device at the same time. Check your total power draw against the station's capacity to avoid overload.

What's the best way to keep this charged between jobs?

Standard 120V outlet charging works for home and shop use. Charge it fully before heading out so you're not caught with low capacity in the field.

Does this come with charging cables or adapters?

Unit ships as a power station assembly. Confirm what outlet types are included before relying on adapters for your specific tools.