OBDResource LED Battery Capacity Monitor for 12–72V Systems — Waterproof 10‑Segment Gauge

This battery capacity meter is built to give clear, instant readouts of remaining charge for golf carts (Yamaha, EZGO, Club Car), motorcycles, electric mowers, forklifts and other battery-powered vehicles. The unit supports selectable voltages (12V, 24V, 36V, 48V, 60V, 72V), provides reverse-connection protection, and uses a 10-segment LED bar (1 red, 2 yellow, 7 green) to communicate state-of-charge in roughly 10% increments. It’s designed for simple installation—either flush-mounted or surface-mounted—and is rated IP65 for dust and water resistance.

How does the LED bar display make battery level easy to read?

The meter uses a 10-segment LED bar that flashes at startup to confirm initialization and then shows approximate remaining capacity in 10% steps. Color coding (green/yellow/red) gives an at-a-glance sense of charge state so you can decide when to recharge or swap batteries.

• 10-segment display: 7 green, 2 yellow, 1 red for clear charge bands
• Auto-identifies battery level after power-up with three startup flashes
• Shows rough capacity in 10% increments for quick decisions

Which battery types and voltages does this monitor support?

This gauge is compatible with many common battery chemistries and can be switched to match the vehicle’s system voltage. It works with lead‑acid, lithium‑ion, lithium iron phosphate (LiFePO4), and multi‑cell lithium packs from 12V up to 72V, making it versatile across vehicle categories.

• Selectable voltages: 12V, 24V, 36V, 48V, 60V, 72V
• Supports lead‑acid and lithium chemistries including LiFePO4
• Suitable for golf carts, motorcycles, mowers, forklifts and small EVs

What installation and protection features should I know about?

The unit offers two wiring approaches—key-switched or keyless—so it can be wired with or without an ignition circuit. It includes reverse-connection protection to prevent damage if wiring polarity is accidentally swapped, and comes with mounting accessories for either insert or panel-cut installation.

• Two installation styles: slot insert or panel cutout (37x25 mm / 1.5x1 inch)
• Reverse connection protection prevents damage from incorrectly hooked leads
• Plug-and-play wiring—no external power source required

How accurate and durable is the meter for outdoor vehicle use?

The meter emphasizes low power consumption and automatic sleep to minimize drain on the battery while remaining ready to display current charge. IP65 water resistance, heat tolerance, and a robust enclosure make it suitable for regular outdoor use on carts and utility vehicles.

• IP65 rating protects against dust and water spray
• Low-power design with automatic sleep to reduce battery drain
• High test accuracy and stable performance in typical vehicle environments

Who is this product for? This OBDResource battery capacity monitor is intended for owners and fleet managers of small electric vehicles who want a reliable, easy-to-read capacity indicator without complex installation. It’s ideal for golfers, groundskeepers, landscapers, fleet operators, and hobbyists who use Yamaha, EZGO, Club Car carts, electric motorcycles, lawn equipment, or warehouse EVs and need a rugged, multi-voltage gauge that works with both lead‑acid and lithium battery systems.