Upgrade 40A 12V/24V MPPT Solar Charge Controller PV Battery Regulator PV 100VDC

【Get Up to 35% More Solar Energy—Keep Batteries Charging When Others Can’t】 Tired of slow charging and low battery levels during cloudy weather or weak sunlight?. MPPT efficiency: 99.50%. 【Works with Virtually Any Battery System—Now and in the Future】 This 40 amp solar panel regulator automatically detects 12V and 24V battery systems and supports LiFePO4, Lithium-Ion, AGM, Gel, Flooded, Sealed Lead-Acid, and fully customizable battery profiles.