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The VS4524AU controller is a PWM charge controller with built in LCD display that adopts the most advanced digital technique. The multiple load control modes enable it can be widely used on solar home system, traffic signal, solar street light, solar garden lamp, etc. Specifications: Model:VS4524AU Nominal system voltage:12/24V auto work Battery input voltage range: 9V~32V Rated charge/discharge current:45A Max. PV open circuit voltage: 50VTerminals: 6AWG(16mm2)USB output: Max. 5V/2.4ABattery type: Sealed(Default) / Gel / Flooded /UserBoost charging voltage:Gel: 14.2V, Sealed: 14.4V, Flooded: 14.6VEqualize charging voltage:Sealed:14.6V/ Gel: No/ Flooded:14.8VFloat charging voltage:Sealed/Gel/Flooded:13.8V Low voltage reconnect voltage:Sealed/Gel/Flooded:12.6VLow voltage disconnect voltage:Sealed/Gel/Flooded:11.1VSelf-consumption:≤9.2mA(12V): ≤12.6mA(24V) Temp. compensation:-3mV/℃/2V(77℉) Working temperature:-13℉ ~ 131℉(Product can work continuously at full load) Extensive Electronic protections: PV short circuit protectionPV reverse polarity protectionBattery over voltage protectionBattery over discharge protectionBattery reverse polarity protectionBattery overheating protectionBattery reverse polarity protectionLoad overload protectionLoad short circuit protection Package List: 1 x VS4524AU Solar Charge Controller1 x English User Manual