Trend-Based Battery Percentage ---- Voltage updates in real-time (0.01V precise), while the battery percentage is calculated to update steadily. This deliberate design prevents misleading jumps from temporary power spikes, showing you only meaningful capacity changes. Compact, 5-Minute Snap-in Install ---- Its space-saving design fits anywhere. Simply cut a panel hole, snap it in, and connect two wires (red to +, black to -)—no brackets or tools needed. Permanent Memory ---- Set your battery type and voltage once. It saves forever, even after power loss. True “set it and forget it” convenience. Universal, No Programming ---- No complex setup. Select from three pre-set battery types (Lead-Acid, LiFePO4, 18650). One gauge fits golf carts, RVs, solar systems, and more. Clear, Tough & Reliable ---- High-contrast screen for clear viewing. IP65-rated front face resists dust and sprays. Durable housing operates from -20°C to 75°C. For harsh conditions, we recommend a sheltered install. ASIN B0GJBWSLSS Color Black Model RL-BI050A Brand Name NInE-ROnG Style Name NEW Unit Count 1.0 Count Item Weight 0.05 Pounds Part Number RL-BI050A Manufacturer NINGBO NINE-RONG ELECTRONIC TECHNOLOGY LIMITED Item Dimensions 2.52 x 1.34 x 0.62 inches Specification Met Ip65 Compatible Devices Golf Carts, RVs, Solar Systems, Lead-Acid Batteries, LiFePO4 Batteries, 18650 Lithium Batteries Included Components User manual *1 ; 5-core connector wire assembly*1 Upper Temperature Rating 75 Degrees Celsius Maximum Operating Voltage 48 Volts (DC) Minimum Operating Voltage 12 Volts (DC)