A Tesla Powerwall 3, 15kW of solar, and a main switch rated 40A. The charger was the easy part. The supply was the job.

Dual-inverter solar, a sonnen battery, and a 63A main that predates both. Adding a 32A charger to a board like this comes down to one question: what gives way? Plus where the Amber setting actually lives in the Evnex app.

You can have both a Tesla Powerwall and an EV charger — but the wiring decisions matter, and most installers overlook them. Here's how to add an EV charger to a home with battery storage without draining your Powerwall.