What generator can charge a Stark?

You need an inverter generator — a regular one barely charges.

• Hyundai 3.3 kW holds a 3 kW load for 1.5–2 hours, charging about 1% per minute
• TSS 3 kW — a bit slower than 1%/min, but lighter

The charger is set to 1.8–3 kW.