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Guide · updated 21 Oct 2026

How to connect your FoxESS battery to Battery Coach

Battery Coach reads your battery's daily totals from FoxESS Cloud: solar made, energy charged and discharged, and grid use. It can't change any settings. You give access with an API key from your own FoxESS account.

Steps

  1. Sign in to your FoxESS Cloud account at foxesscloud.com with the account that owns your inverter.
  2. Open User Profile, then API Management, and generate an API key.
  3. Copy the whole key.
  4. In Battery Coach, open your home's Battery tab, paste the key and choose Connect FoxESS.
  5. If your account has more than one inverter, pick the one with the battery. Your recent history loads straight away, then updates every night.

If it doesn't work

  • "Key not accepted": copy it again in full, with no spaces at either end.
  • No inverter found: your installer may have registered the system under their account. Ask them to add it to yours.
  • To remove access, delete the key in FoxESS Cloud, or choose Disconnect on the Battery tab.

Battery Coach does this from your own data and re-checks every month.

Check your plan and battery with Battery Coach

General information, not financial advice. Check plan details on the retailer's Energy Fact Sheet before switching.