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Battery discharging then charged every night

Battery discharging then charged every night — Potential Sustain protection or SOC setting

SolarEdge · ESS Systems

Was bedeutet Battery discharging then charged every night ?

The battery undergoes a cycle of discharging and then recharging each night. This behavior might be related to the system's Sustain protection settings or the minimum State of Charge (SOC) configuration.

Häufige Ursachen

  • The 'Sustain protection' feature is active and managing battery levels.
  • The 'Minimum SOC' level is set too low.
  • Sustain voltage levels are set too low, causing the battery to drop and then recharge.

Reparaturschritte & Checkliste

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

  1. 1

    Consider increasing the 'Minimum SOC' level in the ESS menu by 5% and observe the behavior.

  2. 2

    If comfortable, adjust the sustain voltages in VEConfigure. Use caution, especially with lead-acid batteries, as these levels are designed to prevent damage.

  3. 3

    Review the system's daily energy usage patterns to ensure the SOC settings are appropriate.

  4. 4

    Consult the manual's section on 'Sustain' for detailed information on these settings.

Alle Codes in diesem Handbuch durchsuchen (12)
Verifizierte technische Daten. Zuletzt aktualisiert: April 2026

Verwandte Fehlercodes

ESS Relay test PendingESS Relay test Pending — Feed-in disabled until test completesInput current-limit settingInput current-limit setting — Loads must be on AC-out for limiter to workLoads powered by grid, not battery or solarLoads powered by grid, not battery or solar — Check battery SOC, limits, and relay test
Quelle: SolarEdge ESS Systems
Open Manual (Page 33)Mehr Codes in diesem Handbuch suchen