Genasun

Genasun makes compact, high-efficiency MPPT charge controllers for small solar systems on boats, RVs and remote equipment. eMarine carries the Genasun 4A and 5A input 12V MPPT controllers and the Genasun 8A Solar Boost controllers for 12/24/36/48V lead-acid and lithium batteries, which boost a low-voltage panel up to a higher battery voltage.

How to choose a Genasun controller

• Panel size: each model lists the panel wattage range it supports, for example 105-350W for the 8A Solar Boost.
• Battery chemistry: lead-acid and lithium versions are sold separately.
• Boost: the 8A Solar Boost charges 24V to 48V banks from a 12V-class panel, useful for electric outboards.
• Size: compact enough to mount near the panel.

Can a Genasun controller charge a 48V electric drive battery?

Yes, the 8A boost models charge 12V to 48V banks. See electric drives.

How does Genasun compare with other MPPT controllers?

See solar charge controllers.

Why choose a small MPPT controller?

Even small panels harvest noticeably more energy with MPPT than with a simple PWM controller, especially in heat and partial shade.