LED Digital DC Voltmeter & Battery Capacity Indicator Panel Meter
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৳ 150.00৳ 180.00 (-17%)
The 2-Wire LED Digital DC Voltmeter & Battery Capacity Indicator is a compact, plug-and-play panel gauge designed for real-time battery voltage and capacity monitoring [Makersbd]. Operating via a simple 2-wire setup, it features a crisp 3-digit red numerical voltmeter paired with a multi-segment color battery bar graph that updates instantly based on charge levels. With its built-in reverse-polarity protection and an auto-detecting voltage design (supporting 12V up to 60V systems), it is the ideal dashboard tracking module for electric bicycles, cars, motorcycles, golf carts, and custom solar power arrays.
Full Product Description
The 2-Wire LED Digital DC Voltmeter & Battery Capacity Indicator Panel Meter is a compact, plug-and-play monitoring gauge designed for real-time tracking of battery health and voltage levels [Makersbd]. This dual-metric dashboard module features a sharp, 3-digit red numerical digital readout paired with an 8-segment color battery bar graph (featuring two red low-power blocks and six green full-power blocks). Running on a highly efficient 2-wire installation setup, the module draws its operating power directly from the source it is measuring, completely eliminating the need for a separate auxiliary power supply line.
Engineered for extreme versatility, the panel meter automatically identifies standard system voltages across an expansive working range, providing out-of-the-box compatibility with 12V, 24V, 36V, 48V, and 60V battery configurations. The internal circuit board features hardwired reverse-polarity protection to prevent catastrophic component burnout if the power wires are accidentally reversed during installation. Its slim, flanged plastic chassis bezel is built for direct snap-in flush mounting, making it an excellent upgrade for monitoring electric bicycles, golf carts, motorcycles, marine watercraft, solar generator arrays, and custom lithium-ion DIY battery packs.
Key Product Features
- Dual Monitoring Layout: Displays precise numerical real-time DC voltage levels while simultaneously providing an intuitive visual interpretation via an 8-segment color bar graph [Makersbd].
- Plug-and-Play 2-Wire Interface: Operates utilizing only two wire leads (Positive and Negative), simplifying wiring configurations inside vehicle dashboards and control boxes.
- Auto-Detecting System Thresholds: Smart internal microprocessor automatically shifts its capacity calculations to match standard 12V, 24V, 36V, 48V, or 60V systems seamlessly.
- Onboard Reverse Polarity Protection: Safely safeguards the underlying microchips from short circuits and burnouts if the positive and negative terminals are connected inversely.
- Snap-In Flush Mounting Bezel: Features built-in structural retaining side clips that hold the gauge firmly inside rectangular cutout frames without requiring screws.
Technical Specifications
| Parameter | Specification Details |
|---|---|
| Product Type | 2-Wire DC Voltmeter & Battery Capacity Percentage Level Meter |
| Display Element Array | 3-Digit Red Numeric LED + 8-Segment Multi-Color Bar Graph |
| Operating Voltage Measurement Range | DC 12V – 60V (Withstands spikes up to 70V) |
| Measurement Precision Tolerance | Within ± 1% to 2% error thresholds |
| Internal Static Current Draw | Low operating footprint (< 15mA typical screen draw) |
| Voltage Refresh Interval | Approximately 300 ms (Milliseconds) per cycle |
| Operating Ambient Temperatures | -10°C to +65°C |
| Physical Dimensions Profile | Approx. 48mm x 29mm x 21mm |
| Chassis Cutout Installation Window | Approx. 45.5mm x 26.5mm |
Simplified Battery Segment Voltage Calibration Reference
The multi-segment bar graph updates its active visual blocks based on the following general percentage thresholds:
- 1 Bar Illuminated: Battery capacity sits at approximately 10% (Critical under-voltage / Red block).
- 2 Bars Illuminated: Battery capacity sits at approximately 20% (Low power warning / Red block).
- 3 Bars Illuminated: Battery capacity sits at approximately 33% (Green block).
- 5 Bars Illuminated: Battery capacity sits at approximately 66% (Green block).
- 8 Bars Illuminated: Battery capacity sits at a full 100% maximum charge (Green block).
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