Round LCD Battery Capacity Voltmeter – DC 7–100V Waterproof Voltage Indicator

See Your Battery State at a Glance.

This round LCD battery capacity voltmeter gives you a clear, color-coded view of your battery health in real time. The vivid rainbow arc display transitions from green (full) through yellow to red (critical) — so you know exactly where your charge stands without squinting at numbers. Precise, waterproof, and built for motorcycles, e-bikes, boats, and any 12V–48V DC system.

Smart Display. Reliable Protection.

Beyond just showing voltage, this battery voltage indicator actively monitors your system and triggers a low-pressure alarm when voltage drops to a critical level — giving you time to act before you're stranded. The wide-angle LCD color screen is readable in direct sunlight, and the adjustable backlight setting lets you dial in visibility for night riding or low-light conditions.

Key Features

• 🌈 Rainbow arc battery capacity display — color-coded from green (full) to red (critical) for instant status reads
• ⚡ Real-time voltage readout — DC 7–100V measurement range displayed on wide-angle LCD color screen
• 🚨 Low-voltage alarm — automatic alert when battery drops to a critical level
• 💡 Adjustable backlight — customizable brightness for day and night visibility
• 💾 Power-off memory save — retains settings after power is cut
• 💧 Waterproof construction — CE certified, built to handle rain and road spray
• 🔋 Multi-battery compatible — works with lead-acid, ternary lithium, and LiFePO4 (iron phosphate) batteries
• 🛥️ Universal fit — compatible with motorcycles, e-bikes, cars, boats, and ATVs
• 🔧 2 mounting options — handlebar clamp set or embedded panel-mount bracket included

Two Mounting Options — Choose Your Install Style

Select the Handlebar Set for a clean clamp-on mount that attaches directly to your handlebar or roll bar, or choose the Embedded version with a panel-mount bracket for a flush, integrated look on your dash or fairing. Both include all necessary hardware for a straightforward installation.

Specifications

• Model: DC 8–100V LED Digital Voltmeter (Model 5918)
• Measurement range: DC 7–100V
• Working current: ≤ 15mA
• Display: Wide-angle LCD color screen with rainbow arc indicator
• Low-voltage alarm: Yes
• Backlight: Adjustable
• Power-off save: Yes
• Waterproof: Yes (CE certified)
• Battery types: Lead-acid / Ternary lithium / LiFePO4
• Mounting: Handlebar clamp set / Embedded panel bracket
• Package contents: Meter head × 1 + accessories × 2

Stop Guessing. Start Monitoring.

A failing battery rarely gives you a second warning. This battery capacity voltmeter keeps you informed every ride so you can plan ahead, not react after the fact. Choose your mount style and add it to your build today.