MPPT15 solar energy regulator CE RoHS ,PWM charging 12V/24V distinguish automaticlly 3 years warranty,Gel pb acid battery MPPT15 12/24V 10/15A solar energy regulatorMPPT15 15A solar controller (also known as intelligent solar charge controller, solar charge controller, PV controller) can intelligently regulate the working voltage of solar panels,letting the solar panels always work at Maximum ...