DC 12V 24V 36V 48V 72V Battery Capacity Voltage Meter with Alarm Battery Capacity Gauge Indicator Battery Indicator Monitors _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ DC 12V 24V 36V 48V 72V Battery Capacity Voltage Meter with Alarm, Battery Capacity Gauge Indicator, Battery Indicator Monitors, Lead Acid and Lithium Ion Battery Tester _x000D_ Features: _x000D_ Convenient to Use The battery voltage tester is equipped with a switched function button. You can press to check the cattery capacity or real-time voltage, and with alarm design, the battery meter indicator flashes when the battery capacity is below 20 percent _x000D_ Easy to read: the battery indicator is equipped with a clear LCD digital display, and has a waterproof PVC screen protector with bright backlight, which allows you to read the results from different angles, with low working current consumption and maximum 5mA _x000D_ For various batteries: the battery capacity indicator is compatible with 12V/ 24V/ 36V/ 48V/ 60V/ 72V/ 84V lead-acid batteries, ternary lithium batteries, polymer lithium ion batteries, series 3-15 lithium-ion batteries, storage batteries and water battery and more; Please note that they are not suitable for lithium iron phosphate batteries, 1. 2 Li- Batteries can be used in series and over 15 Li batteries in series _x000D_ Widely used: the voltage indicator for battery capacity can be used in different places, e.g. B. in the garden, home, office and more, reliably placed and used for a long time to meet your different requirements and make life more comfortable _x000D_ International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. _x000D_ _x000D_ Specification: _x000D_ Operating voltage: DC 12-84V _x000D_ Working current: