The Manager30 Battery Management System can efficiently use up to 520W of solar, but larger arrays may be connected as long as panels meet system requirements.
Panels must be unregulated, nominal 12V, operate between 9–32V VOC, and be wired in parallel. Oversizing beyond 520W won’t increase peak charging capacity but helps maintain reliable performance under shading, poor angles, or heat-related efficiency loss.
For best results, use matching panels, avoid mixing technologies, and ensure quality cabling and connections.
REDARC recommends seeking the support of a qualified auto electrician or technician.
Important
For your safety, REDARC recommends installation by a qualified auto electrician or technician. Our trusted REDNetwork is made up of professional auto electrical businesses certified by REDARC to install the complete of REDARC solutions. Find Your Local Installer
This information is applicable to the following products:
- Manager30 Battery Management Systems (BMS12030S3, BMS12030S3-xx)
REDARC’s Manager30 is capable of utilising up to 520 watts of solar efficiently. However, there is no hard limit on the total amount of solar you can connect provided it meets the required system specifications.
Solar input requirements for the Manager30
To function correct, all solar panels connected to the Manager30 must meet the following criteria:
- Unregulated output: Do not use panels with built-in regulators.
- Nominal 12V panels: Operating voltage must fall between 9 to 32 volts (VOC).
- Parallel configuration only: When connecting multiple panels, wire them in parallel, not in series. Parallel wiring ensures voltage stays within the acceptable range while increasing total output current.
Installing more than 520 Watts of solar
While 520W is the maximum amount of solar that the Manager30 can fully utilise at one time, adding more than 520 watts can improve overall system reliability by compensating for the following potential shortfalls.
- Reduced solar panel output due to non-optimal angles.
- Partial shading from trees, racks or rooftop accessories.
- Temperature-related efficiency loss.
Oversizing a solar array can help ensure consistent charging performance.
Best practices for adding solar panels
When installing solar panels, follow these recommendations:
- Match panel specs: Use the same panel type, brand and VOC rating for optimal compatibility.
- Avoid mixing panel technologies: combining different technologies can reduce system performance.
- Use quality cabling and connections: maintain voltage integrity and prevent power loss.