battery voltage indicator display 5V to 7V
5V will shouw empty battery while n 7V it will show all bar lighting


Warm sound tips: This model is not waterproof. If it is used outdoors, please waterproof it, because electronic components should be used in a dry environment. 
Lithium lead acid battery NiMH battery display board. 
How to use: connect the positive and negative terminals of the display board to the positive and negative terminals of the battery under the test. Digital tube displays real-time battery. 
Power supply display parameter: 


Battery voltage is greater than N × 3.3v, clear 1 mains supply (Note: N is the number of battery segments) (the following data is a reference value, there will be about 2% error range, do not shoot with high accuracy)
Battery voltage is greater than N × 3.5 v, bright 2 grids 
Battery voltage is greater than N × 3.7 v, bright 3 grids 
Battery voltage is greater than N × 3.9 v, bright 4 grids 
Battery voltage is less than N × 3.3 v, a all four segments are off, which means that the battery is lower than 3.3 v. At this time, the battery is charged. 
Digital tube color: the frame is red, the display is yellow, green and blue. The battery is fully charged. 


4 v lead acid voltage range: 
The battery voltage is greater than 3.3 volts and the battery voltage is 1 grid. 
Battery voltage is greater than 3.5 volts, bright 2 grids 
Battery voltage is greater than 3.7 volts, bright 3 grids
Battery voltage is greater than 3.9 


volts , bright 4 grid 6 volts lead-acid voltage (you can use 2 strings lithium battery iron phosphate) 
Battery voltage is greater than 5.6 volts, 1 grid light 
Battery voltage is greater than 5.9 volts, bright 2 meshes 
Voltage the battery is larger than 6.2 volts, bright 3 grids 
Battery voltage is greater than 6.6 


volts , bright 4 grid 12 volt lead acid voltage range: (4 lithium series iron phosphate batteries can be used) 
Battery voltage is greater than 11.0 volts, and battery voltage there are 1 grids. 
The battery voltage is greater than 11.8 
volts , bright 2 grids The battery voltage is greater than 12.3 volts, and the battery voltage is 3 grids.
Battery voltage is greater than 13.1 v, bright 4 grid 


24 volt lead-acid voltage range: (8-series lithium-iron phosphate battery can be used) 
Battery voltage is greater than 22.3 volts, and the battery voltage is 1 grid. 
Battery voltage is greater than 23.5 v, bright 2 grids 
Battery voltage is greater than 24.7 v, light 3 grids 
Battery voltage is greater than 26.3 


volts , bright 4 grid 36 volt lead-acid voltage range: (12 series lithium iron phosphate batteries can be used) Note: 36 v lead acid will burn more than 43 
volts. The battery voltage is greater than 33.9 volts, and the battery voltage is 1 grid. 
The battery voltage is greater than 35.9 volts, bright 2 grids
The battery voltage is greater than 37.9 volts, and the battery voltage is 3 grids. 
The battery voltage is greater than 39.9 v, bright 4 grid 


48 v lead acid voltage range: (15 series lithium iron phosphate battery can be used) Note: 48 v lead acid will burn more than 59 v 
Battery voltage is greater than 43 v, light 1 grid 
Battery voltage is greater than 45.6 v, bright 2 grids 
The battery voltage is greater than 48.2 volts, and the battery voltage is 3 grids. 
Battery voltage is greater than 50.9 volts, bright 4 mesh