Features: Low working power consumption.(5mA max) The battery monitor can quickly detect the capacity of lithium batteries/ lead-acid batteries. The small battery voltage reader with a screen protector, clear and bright green backlight LCD display from any angle. Reverse protections design, will not burn if connect reversely. Can be used for golf cart, RV, marine, boat-, mobile portable devices, Balance car, Electric Motorcycle, Vacuum cleaner, Measuring equipment, Medical-equipment, and Instrumentations, etc. Specifications: Material: plastics Size: approx 58.05x33.6x13.5mm/2.3x1.3x0.5-inch Type: for lithium battery/for lead acid battery(optional) Note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Battery Capacity Indicator