48v Volt Battery Indicator Meter Gauge 101814201 103200701 AutoConnection: Pin+ Battery+ Pin- Battery- C-single output for external useOnly when the battery is properly charged then the 10th LED (far right) will be lighted.As batterys state of charge decreases, successive LED lights up, only one at a time.When 2nd (from left) LED flashes, indicating energy reserve. When both 1st and 2nd LED flash, indicating empty, new battery is needed to replace old one.Battery indicator memorized the battery state is full when leaving factory. When use with a new battery, it should be powered on for at least 2 minutes to indicate the real battery state.Specification:Range indication: Green: 41~100%, Yellow: 21~40%, Red: 20% less.Forklift trucks, Golf Carts, RVs, Boats, Scooters and electric vehicle. etc.Item Description:48V Battery Indicator GaugeWaterproof, IP65Temperature Range: -40 Fahrenheit to 185 FahrenheitCase Style: Front Panel MountVoltage: 48VColour:blackMaterial:ABSPackage Contents:1 * Battery IndicatorOnly the above package content, other products are not included.Note: Light shooting 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.