Solar Charge Controller for 12V and 24V Systems Overview This compact solar charge controller automatically manages charging and discharging between a photovoltaic panel and a battery, preventing overcharge and helping extend battery life. It includes an LCD display for easy monitoring and supports automatic system voltage detection. Key Features and Specifications Package includes: 1 x solar controller Size: 13.35 x 7 x 3.5 cm Material: ABS for durable, long lasting use Working voltage: Automatic identification for 12V and 24V systems Rated charging current: 20 A Rated discharging current: 10 A Standby current: less than 10 mA USB outputs: Dual USB port, 5 V 2.5 A LCD display for monitoring charge and discharge status Working temperature range: 35 to 60 C Voltage Settings Charge cut off voltage: B1: 14.4 V B2: 12.6 V B3: 14.6 V Discharge voltage: B1: 12.6 V B2: 10.5 V B3: 12.0 V Discharge cut off voltage: B1: 10.7 V B2: 9.0 V B3: 10.0 V Battery Compatibility B1: 12V or 24V lead acid battery automatic identification B2: Lithium ion battery B3: Lithium iron phosphate battery Why this controller helps Prevents overcharge and deep discharge by regulating charge and discharge cut off points, extending battery life. Provides clear status information on the LCD so you can monitor battery voltage and system activity at a glance. Dual USB outputs let you power or charge small devices directly from the controller. Compact, low standby current design minimizes parasitic drain when not actively charging. Installation and Use Notes For use only with photovoltaic panels. Install on a flat, ventilated surface to ensure proper cooling and reliable operation. Ensure correct battery type selection for proper charging parameters. Typical Applications Small off grid systems and solar generators for cabins or remote power RV and marine battery charging and management DIY solar panels for outdoor lighting, camping setups, and backup power What is included 1 x solar controller This controller provides straightforward charge regulation, multi chemistry battery support, and convenient USB outputs in a compact ABS enclosure suitable for small to medium 12V and 24V solar setups.