Digital Battery Power Meter DC 12‑84V Voltage Percentage Indicator Waterproof / Non‑waterproof Lithium Battery Capacity Tester For Car E‑bike Battery Monitor

HW‑B06‑302 Battery Power Meter Voltage Indicator

📌 Product Overview

This battery power meter adopts dual‑display design for battery level and real‑time voltage. The upper section uses 8‑segment color bar graph (2 red bars, 6 green bars) to show remaining battery capacity, while the lower 3‑digit LED tube displays real‑time battery voltage with automatic decimal point shift for improved reading accuracy. It supports multiple battery types including lithium battery packs, lead‑acid batteries, car batteries and electric‑vehicle batteries. Built‑in reverse‑connection protection, it will not be damaged under reverse wiring condition. Two‑wire simple connection, easy installation for battery status monitoring projects.

📋 Product Specifications

Item	Parameter
Voltage Tolerance	±1%
Power Display Level	8‑level (10%,25%,40%,50%,60%,75%,90%,Full)
Operating Current	5‑15mA
Working Temperature	-40℃ ~ +85℃
Refresh Rate	About 300ms per update
Display Type	0.56″ three‑digit LED digital tube
Display Color	Red
Wire Length	15cm
Standard Version Dimension	48 * 29 * 22mm
Waterproof Version Dimension	57 * 33 * 27mm
Standard Mounting Hole	46 * 27mm
Waterproof Mounting Hole	55 * 31mm
Standard Version Weight	14g
Waterproof Version Weight	27.2g

✨ Core Features

✅ Dual display for battery power bar and real‑time voltage value, intuitive reading ✅ 8‑level power indicator with red‑green color bar, clearly reflect remaining capacity ✅ Built‑in reverse‑connection protection, anti‑burn when positive and negative wires reversed ✅ Wide compatibility, fit for lithium, lead‑acid, automobile and e‑vehicle batteries ✅ Two‑wire wiring mode, simple connection, convenient for field installation ✅ Red LED digital tube, clear display under different ambient brightness ✅ Two optional versions: standard type and waterproof type for different scenarios

⚠ Important Usage Notice

Kind reminder: If there are version differences or images have not been updated, please refer to the actual product. Thank you!

🛠 Application Scenarios

• Electric vehicle battery real‑time monitoring
• Lithium battery pack capacity indicator
• Lead‑acid battery voltage detection
• Car battery status display
• DIY battery power monitoring equipment