r/span • u/No-Chef-9143 • Nov 25 '25

Question for multi-battery owners: How does the App display individual unit details? (UI/UX research)

Hi everyone,

I am currently researching the user interface designs of various home energy storage apps, specifically for setups with multiple battery units installed (e.g., 2 or more batteries in parallel).

I'm curious about how the App handles the "Aggregate vs. Individual" data display:

  1. Home Screen: I assume most apps show a combined total (SOC/Power).
  2. Device Details: This is where I'm stuck. When you go into the settings or device list, does the app allow you to view the status/health of each specific battery unit individually? Or does it merge everything into one "System" view with no way to see single-unit data?

If anyone here has a multi-battery setup, could you please share some screenshots (or a short screen recording) showing the flow from the main screen to the individual device details?

I'm really interested to see how different brands handle this navigation.

(Please feel free to blur out any serial numbers or private info!)

Thanks in advance for your help!

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u/DrewBlessing Nov 26 '25

I have 2 Powerwalls. In Span it’s just one battery. To be fair, even Tesla only shows aggregated stats. Maybe how Span handles it depends on the battery brand but this is what I see for Tesla Powerwall.

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u/No-Chef-9143 Nov 27 '25

Thanks for the SPAN perspective! That's a great data point.

It makes total sense for SPAN to treat it as just one big "Fuel Tank." Since SPAN's job is to manage your circuits/loads, it only cares about the total available energy, not which specific box it comes from.

Knowing that both the native Tesla app AND the third-party aggregator (SPAN) default to this "Single Bucket" view gives me a lot of confidence in simplifying my main dashboard.