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Adjusting the Amperage/Charge Rate on Your EV Charger

Adjusting the Amperage/Charge Rate on Your EV Charger

Make adjustments on-demand through the Emporia Energy app or automatically via advanced energy management features.

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Adjusting Charge Rate On-Demand via the Emporia Energy App

You can manually adjust the charge rate at any time in the app. There are two key settings:

  • Maximum Charge Rate – A permanent ceiling to ensure safe operation based on your electrical system

  • Real-Time Charge Rate – A dynamic setting that allows on-the-fly adjustments in single-amp increments (6A–40A for NEMA 14-50, up to 48A if hardwired)

To adjust the Maximum Charge Rate:

  1. Tap the Electric Pump icon next to your charger’s name

  2. Open Settings by tapping the Charger Settings tile on the bottom of the page

  3. Select Breaker

  4. Choose the appropriate breaker size

To adjust the Real-Time Charge Rate:

  1. Tap the Electric Pump icon next to your charger’s name

  2. Tap the Charger Settings tile on the bottom of the page

  3. Tap Charge Rate from the settings list

Automated Energy Management

The Emporia platform offers smart features to adjust charge rates for efficiency and cost savings automatically:

  • Excess Solar Optimization – Adjusts the charge rate to maximize solar energy usage

  • Peak Demand Management – Modulates charging to reduce peak demand charges

  • Load Management – Balances electrical load to prevent system overloads

Limitations to Consider

  • Vehicle Limitations – Some EVs have a maximum charge rate that cannot be exceeded

  • System Limitations – Your home’s electrical setup may impose restrictions

  • Installation Limitations

    • 40A max for NEMA 14-50 plug installations

    • Up to 48A if the charger is hardwired

PIN Requirement (NEC Compliance)

The National Electrical Code (NEC) requires a PIN to change the breaker size for safety. The installer sets this PIN. Contact them or Emporia Support for resets

Safety Note

Always ensure your charge rate matches your electrical system’s capacity. Incorrect settings may cause safety hazards—consult a professional for adjustments requiring a PIN

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