1. 2. The battery equalizer will equalize or balance the battery voltage when it detect there are 20mv between two batteris 3. Reverse polarity protection, Low Voltage Disconnect to Provide longer Battery Life Time 4. Can be connected in series or in parallel for a long time in the battery, so as to automatically maintain the balance of the battery state. 5. Suitable for in autos, boats, golf carts, motorcycles, solar, trucks, RV's, electric forklift batteries, and any other battery groups Configuration. Battery nominal voltage :24V Optimizing current :0-5A Quiescent current less than 3mA Low voltage disconnect :10V Installation: Please connect the battery equalizer to battery as follows: 1.Red cable:Battert B positive or andpole 2.Black cable:Battery A negative or -pole 3.White cable:Battery B negative pole or Battery A positive pole (The pole which connected Battery A and Battery Bin series size: 70x70x27 mm color:Black Material:ABS Package Contents: 1 x Solar Battery Equalizer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store