Actively monitors your battery's voltage any time the sun is up
Works with all sizes, types and brands of 12 Volt Lead-Acid Batteries including but not limited to: flooded (filler cap / maintenance-free / VRLA / SLA), gel, AGM (Optima / Odyssey / etc), starter, deep cycle and hybrid
Internal program adjusts its output several times a second - then quickly and correctly charges your battery based on this reading
Includes 15 watt amorphous silicon solar panel (1' x 3') - 20' DC solar panel connection, 4' DC cord with quick connector
Will not overcharge, regardless of how long connected - Maintains up to 4 batteries at a time