Discover why your Growatt ARK battery shows low voltage after winter storage and how to fix it.
Low voltage in batteries after storage can be caused by self-discharge, temperature effects, or insufficient charging before storage.
To prevent low voltage, ensure the battery is fully charged before storage and maintain optimal storage conditions.
The Growatt ARK battery system incorporates a Battery Management System (BMS) designed to protect the battery from operating outside of its safe voltage range. When the battery voltage drops below a certain threshold, the BMS engages low voltage protection to prevent damage to the cells. This can occur due to insufficient charge during periods of inactivity, such as winter storage. Additionally, the BMS monitors the individual cell voltages; if an imbalance is detected, it may trigger a fault to safeguard the battery's integrity. Factors like temperature fluctuations can also impact the voltage readings, as colder temperatures can cause a natural drop in voltage.
After winter storage, the Growatt ARK battery may display a low voltage warning via the LED indicator, which could be blinking or showing a specific color pattern. The monitoring app may also show alerts indicating low battery voltage and reduced energy production from the system. Homeowners might notice that the inverter is not functioning optimally, leading to decreased energy output from the solar array.
Always consult a licensed electrician or certified solar installer when working with electrical systems to ensure safe handling and compliance with local codes.
To avoid low voltage issues in the future, ensure the battery is regularly charged and maintained, even during periods of low solar production. Implement a routine check-up schedule to monitor the battery's health and BMS status. Additionally, consider installing a solar array with optimal positioning to maximize sunlight exposure, especially during winter months.