DC 7–55V Smart Battery Level Indicator (JX-4615N-A2) – LCD Voltage & Capacity Meter

Specification:

1. Model: JX-4615N-A2
2. Voltage Range: DC 7V to 55V
3. Display: LCD (Green Backlit)
4. Battery Type: Compatible with Li-ion, LiPo, Lithium, and Lead Acid batteries
5. Functions: Battery capacity bar + real-time voltage display
6. Input Pins: VCC, GND
7. Dimensions: Approx. 60mm x 25mm
8. Case Material: ABS plastic
9. Installation: Panel mount / adhesive mountable
10. Weight: Approx. 20g

Description:

This DC 7–55V Smart Battery Monitor is a compact and reliable LCD module that displays both battery capacity (via bar graph) and voltage level in real-time. Ideal for lithium, lead-acid, or LiPo battery systems, it helps you visually monitor battery health at a glance. The green backlight and simple 2-wire connection make it perfect for DIY, solar, e-bike, UPS, and portable power applications.

Application:

1. E-bike battery level display
2. Solar power systems
3. Lead acid or lithium battery-powered devices
4. Power banks and UPS setups
5. Portable electronics and tools

How to Set the Battery Type (Gel, Lithium, Lead-acid):

1. Power On the module by connecting it to your battery (7–55V DC range).

2. Press and Hold the "TEST" button (the red circle with the power icon) for about 3 seconds.

3. The display will enter battery type selection mode.

4. Short press the "TEST" button to cycle through the battery types:

P1: 3.7V Lithium battery (Li-ion, Lipo)

P2: 3.2V LiFePO4 battery

P3: 2.0V Lead-acid battery (AGM, Gel, Flooded)

P4: Custom voltage settings (manual configuration)

5. Once your desired battery type is displayed, wait 5 seconds or long press the button again to save and exit.