Powerwall devices & health

SolDial breaks your storage down to the individual Powerwall, so you can see how each pack is really doing.

Per-pack vitals

For each Powerwall you get its current charge, usable capacity, and a derived state-of-health relative to its rated capacity — useful for spotting a pack that's degrading faster than its siblings.

Capacity over time

Because SolDial captures nameplate and measured capacity, you can watch real-world capacity trend over months and quantify degradation rather than guessing.

Firmware

The app surfaces your Gateway firmware version so you always know what build you're on.

Powerwall 2 vs Powerwall 3

SolDial supports both generations. Each unit is rated at 13.5 kWh of usable energy, so per-pack health is measured against that same figure either way. A few differences are worth knowing:

• Capacity reporting. A Powerwall 2 system reports each pack’s energy separately, while a Powerwall 3 reports a single whole-system figure. SolDial reads the Powerwall 3 total correctly instead of multiplying it per unit — so a two-unit Powerwall 3 home shows about 27 kWh, not double that.
• Built-in inverter. Powerwall 3 has its own solar inverter built in, where Powerwall 2 pairs with a separate inverter. Where that detail is available it’s reflected in Solar & per-string detail.
• Local data. Both expose live data to SolDial over your home Wi-Fi through the Tesla Gateway once paired. The read format differs between the two generations, and SolDial handles each automatically.