12V 24V 36V 48V Battery Indicator, Waterproof Universal LED Display Ba-ttery Meter Gauge for Lithium, LiFePO4, Lead-Acid (48V Pb-Acid Battery Indicator)

This battery indicator works with general 12V, 24V, 36V, and 48V lead-acid, Lithium, and LiFePO4 storage batteries. A 10-bit ADC MCU measures battery voltage and power level, featuring a powerful battery level testing system and unique design. It automatically enters sleep mode after 30 seconds of no operation, helping to save energy. Charger indicator: Five-segment LED indicator displays 10% to 100% battery power level. It lets you know when to charge the battery: when battery capacity is 10%, only 1 LED bar stays lit; when capacity is 20%, 1 LED bar flashes as a reminder; when capacity is 30%, 1 always-lit bar and 1 flashing bar serve as a reminder. Operational errors are no longer a concern! Understanding the worries during installation, this battery monitor features advanced built-in reverse polarity protection. It effectively shields the core components from damage due to miswiring, providing comprehensive safety protection. Used for: This product is suitable for use in a wide range of fields, including various lead-acid batteries (such as AGM, Calcium, GEL, MF, EFB, SLA, VRLA, WET, etc.), automobiles, trucks, RVs, motorcycles, electric bicycles, tricycles, boats and yachts, golf carts, sightseeing vehicles, electric forklifts, solar photovoltaic systems, wind power generation systems, UPS uninterruptible power supplies, home energy storage battery cabinets, communication base stations, security monitoring systems, medical and emergency equipment, children's toy vehicles, and models. The battery capacity indicator is not merely for "checking how much power is left." Its core value lies in: 1) Over-discharge protection: It issues a warning when voltage or capacity drops to a set threshold, prompting users to recharge promptly to avoid permanent damage caused by deep discharge. 2) Usage optimization: It helps users reasonably arrange electrical appliance usage based on battery status. 3) Safety enhancement: It prevents equipment shutdowns or accidents (such as failure of vehicle lighting during nighttime driving) due to sudden battery depletion