Renogy 40A 12V/24V Auto DC Input MPPT Solar Charge Controller Parameter Adjustable LCD Display Solar Panel Regulator fit for Gel Sealed Flooded and Lithium Battery Rover 40A w/ Bluetooth

DESCRIPTION 【Innovative MPPT Design】 Die-cast aluminium design ensuring excellent heat dissipation and Renogy Maximum Power Point Tracking technology with a high tracking efficiency of up to 99% and peak conversion efficiency of 98%. It is the best charging solution even in cloudy environments where the max power point of the solar panels will fluctuate all day. 【12V/24V Automatically Detect】 Automatically detects 12V or 24V DC system voltages and the LCD screen and multiple LED indicators display the solar charging and battery operation information customizable parameters and error codes. 【Full System Protection】 Meant to safeguard your system the self-diagnostic capability can assess and protect against reverse polarity battery overcharging battery over-discharging overload short-circuiting and reverse current. 【4-Stage Safely Charging】 Features 4-stage charging (Bulk Absorption Float and Equalization) of Lead Acid Batteries and 2-stage charging (Bulk and Absorption) for