Teeyong 40A MPPT solar controller

【RV dedicated MPPT controller】: Negative ground designed for RV. Better protection of LCD readings while protecting the controller, and modification of controller parameters is supported. 【Charge Smarter】:Due to an advanced digital power technology,the circuiit energy conversion effciency is as high as 98%.Automatically detects 12V or 24V DC system voltages. Compatible with various Deep Cycle battery options: Sealed, Gel, Flooded, and Lithium.