Check the listing for details. 30A Solar Charge Controller PWM 12V24V Battery Regulator LCD Display APP 0Vstart. Color: Purple, Condition: New. Listed at 17.99 USD. 30A Solar Charge Controller PWM 12V24V Battery Regulator LCD Display APP 0Vstart 【Technical parameters】 Y&H 30A solar charge controller can automatically detect 12V/24V system voltage. 12V battery system: solar panel maximum power 360W, open circuit voltage (VOC) 15V-24V; 24 battery system: solar panel maximum power 720W, open circuit voltage (VOC) 30V-48V; built-in 5V/2A (max) dual USB output, for charging mobile phones, tablets and small fan appliances. outputs for charging cell phones, tablets and small fan appliances. 【Compatible with a variety of battery types, battery repair function】Solar controller is compatible with 12V/24V lithium-ion and lead-acid batteries, including FLD, GEL, LiFePO4, etc.; support for battery repair function, in the use of the battery 0V start and battery repair function must remember the voltage value of the battery at the time of charging. For example: the repaired battery is 12V, set bt12V and memorize it, and you can do 0V start after the battery is dead. 【APP Communication】 Through cell phone communication, you can view the cumulative power generation. Real-time power generation collection, daily sunlight utilization, power generation clearly recorded. Solar control parameters can be modified. 【Load Time-Slot Output】 In the load output mode time-slot output function, up to six time-slots of the day can be selected for output, and each time-slot can be switched on and off individually. (Only for Bluetooth, WIFI, 4G device settings) 【Multiple Protection】Solar voltage regulator has overcharge protection, overcurrent protection, overheating protection, short circuit protection, solar panel and battery reverse connection protection; Description：This controller is suitable for all kinds of lead-acid batteries (including open, sealed, gel and other batteries). If you charge a lithium battery, you must be familiar with its battery characteristics, and you must set the charging parameters before you can use it. For example: charge 12V lithium battery, As of output protection setting 9.5V, full protection 12.5V, start charging voltage 11.5V when the battery drops. PRODUCT FEATURES：1.The industrial-grade master control chip, AD sampling precision, temperature, level 16 charging current, discharge current, the cumulative output real-time display, screen shows at the same time, be clear at a glance.2.Automatic focusing MPPT tracking charging, high charging efficiency, non-stop detection during charging, bidirectional focusing tracking.3.large-screen LCD display, adjustable charging and discharging parameters. Ultra-wide charge and discharge adjustable, as long as you understand the characteristics of the battery set its corresponding charging parameters, you can charge a battery.When the output is off, the time can be adjusted, which is more convenient (on the market, there is no point adjustment).4.built-in overheating, overcurrent, short circuit, open circuit protection, reverse connection protection, when the fault is eliminated, the controller automatically recovers, does not damage the device.5.bidirectional MOS tube anti-backflow circuit, high-power charging mode, ultra-low heat. SYSTEM CONNECTION：1. Connect the battery to the charge regulator-plus and minus. The controller will automatically detect the battery voltage, the controllerautomatically set the corresponding charging parameters.2. Connect the photovoltaic module to the requlator-plus and minus.3. Connect the consumer to the charge regulator-plus and minus.The reverse order applies when deinstalling! An improper sequence order can damage the controller!A gentle reminder: When using Battery 0V start and battery repair function must remember to charge the battery voltage value of electricity. For example: repair battery for 12V, set bt12V and memory,after the battery no power can do 0V start. Parameter setting：MODEL BL915-30ACharge current 30ADischarge current 20A Equalization 12V/24VB1 LithiumB2 GelB3 Flood12.2V/24.4V14.2V/28.4V14.6V/29.2VMax Solar input18V solar panel for 12V battery, 36V solar panel for 24V