Battery level indicator is a device used to monitor the remaining charge of a battery and display its status in real time. This waterproof lead acid battery gauge is compatible with 12V/24V batteries, automatically displays the battery level, monitors charging and discharging, and provides low battery alerts. Easy to install, it is suitable for RVs, golf carts, forklifts, and other lead acid battery-powered equipment.
Specification
| Model |
ATO-RL-BI001-1 |
| Display Method |
LED |
| Operating Current |
≤100mA |
| Operating Temperature |
-20℃–75℃ |
| Operating Voltage |
DC 9-85V |
| Housing Material |
PC545 |
| IP Rating |
IP67 |
| Display Area Size |
25.5 * 7.6mm |
| Overall Dimensions |
53.1 * 31.1 * 34.8mm |
| Panel Cutout Dimensions |
36 * 24mm |
| Weight |
27.2g |
Feature
- Wide Voltage Compatibility: The waterproof lead acid battery indicator supports DC 9-85V, suitable for 12V, 24V, 36V, 48V, 72V, and 80V lead acid battery systems.
- Bright LED Display: 3-color LED battery level indication for clear, easy-to-read battery status.
- Wide Operating Temperature: The lead acid battery meter operates reliably in temperatures from -20°C to 75°C.
- IP67 Waterproof: Sealed housing protects against water and dust for reliable indoor and outdoor use.
- Low Power Consumption: Operating current of ≤100mA helps minimize battery drain.
- Durable & Compact Design: The battery level meter is made of PC545 housing material with a compact panel-mount design for easy installation.
Size (unit: mm)

Wiring

Application
- Golf Cart: Ideal for lead acid golf cart batteries, providing real-time battery level indication to help prevent unexpected power loss and improve charging management.
- Motorcycle: The waterproof lead acid battery indicator is suitable for 12V/24V motorcycle batteries, displaying the remaining battery capacity for convenient daily riding and battery maintenance.
- Electric Sightseeing Vehicle: Designed for electric sightseeing vehicles and shuttle carts, enabling operators to monitor battery status and schedule charging efficiently.
- Tow Tractor: The lead acid battery indicator is compatible with electric tow tractors and industrial utility vehicles, offering reliable battery level monitoring for warehouses, factories, and logistics operations.

Installation
Step 1: Prepare the Panel Cut-Out
Cut a 37 × 25 mm (1.46 × 0.98 in) rectangular opening in the mounting panel according to the installation dimensions. Ensure the cut-out is clean and accurately sized so the battery indicator fits securely without excessive clearance.
Step 2: Insert the Battery Indicator
Insert the LED battery indicator from the front side of the panel into the cut-out. Make sure the display is properly aligned and sits flush against the panel surface for a professional appearance and optimal visibility.
Step 3: Secure the Indicator
Align the mounting holes and fasten the indicator with the supplied screws. Tighten the screws evenly until the indicator is firmly secured. Avoid overtightening to prevent damage to the housing or mounting panel.
