Answer
Jul 08, 2024 - 07:11 AM
The 100/15 MPPT is for use with up to 200 Watts of panels when used in a 12 volt battery system. To go to 400 Watts of solar you would need the MPPT 100/30. Also be careful about the idea of adding more panels later. All the panels need to be identical and it might be hard to find the exact same panels later.