Waterproof Lead Acid Battery Indicator, 12V/24V

5 out of 5 based on 1 reviews | Write a review

$56.47

Lead acid battery indicator for sale. Compatible with 12V/24V batteries, IP67 waterproof. Automatically shows battery level at power-on, with delayed charge/discharge display and low battery warning. Features clear 3-color battery lights and screw-mounted design for easy installation. Ideal for RVs, electric vehicles, golf carts, forklifts, and other lead acid battery applications.

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SKU: ATO-BI-LA

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Delivery date: 6-12 days

Overview

Buy battery level indicator online. Waterproof lead acid battery gauge for 12V/24V batteries, automatically displays charge level, monitors charging and discharging, and provides low battery alerts. Easy to install and suitable for RVs, golf carts, and forklifts.

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

3-Color LED Display: Clear battery level display with three different battery light colors.
Power-on Display: The waterproof lead acid battery indicator automatically displays current voltage on power-up.
Low Battery Alert: Second yellow battery light flashing when battery drops to 20%.
Critical Alert: First red battery light and second yellow battery light flashing alternately at 10%.
Discharge Delay: 155s delay prevents the battery gauge rapid display changes when the battery undergoes heavy discharge.
Charging Delay: Displays charging progress with a running LED light, advancing one level every 200 s.
Auto Voltage Detection: The waterproof lead acid battery meter auto-detects 12V or 24V on power-up.
Installation: Screw-mounted design for easy installation.
Reverse Polarity Protection: The battery level meter triggers reverse polarity protection if wired incorrectly.
Battery Compatibility: Suitable for liquid lead-acid batteries.

Size (unit: mm)

Lead acid battery indicator size

Wiring

Lead acid battery gauge wiring

Application

Battery indicator application

Tips: How to install the waterproof lead acid battery indicator?

The battery level indicator comes with a screw-mounted design for easy and secure installation. Follow these steps:

Lead acid battery indicator installation

Existing reviews of Waterproof Lead Acid Battery Indicator, 12V/24V

Simple and practical

I installed the 12V version of this battery indicator on my RV, and it’s been very dependable. The three-color lights make it easy to check the battery level at a glance, and the low battery warning is very helpful. Installation was quick with the screw-mount design, and the IP67 waterproof rating gives me confidence for outdoor use.

From: Seraphina | Date: 12/02/2026

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