Features:
1. Dual display of power and voltage, clear at a glance, and more intuitive display.
2. Up 8 grid color bar display battery power, down voltmeter, voltmeter decimal point automatically shift.
3. The wiring is simple, only 2 wires need to be connected to use, and installation is convenient.
4. Equipped with reverse connection protection, even if the wires are connected in reverse, they will not be damaged.
5. Wider range of use, including lithium battery packs, automotive batteries, electric vehicle batteries, and various types of battery electric devices.

Parameter:
Specifications: Lithium battery 2S, 3S, 4S; Lithium iron phosphate 4S (optional)
Display color: red light, blue light (optional)
8-segment battery resolution: 10%, 25%, 40%, 50%, 60%, 75%, 90%, and 10%
Voltage meter accuracy: about 3%
Working temperature: -10~+65 ℃
Working humidity: 10~80% (without condensation)
Opening size: 45 * 26 * 18mm
Product size: 48 * 29 * 21mm

How to use:
Connect the positive and negative terminals of the display board to the positive and negative terminals of the tested battery, and the digital tube will display real-time battery power.

With undervoltage warning function, 12.5% light flashes when the battery is only left to the last bar. At this point, it is best to stop using and charge.

Package include:
Battery indicator* 1