LNEX 500A Shunt Battery Monitor 2.4" Color Screen — 8–100V, 16ft Cable, Programmable Alarms

The LNEX 500A Shunt Battery Monitor is a compact 2.4" color-screen system that tracks voltage, current and state-of-charge for 8–100V battery banks and alerts you with programmable high/low alarms.

Designed for RVs, boats, golf carts and off-grid setups, this LNEX monitor pairs a precision shunt with a bright 2.4-inch backlit display and a 16-foot shielded cable so you can read battery status clearly from a dash or cabin. It stores the latest measurements if power is lost, supports multiple battery chemistries including LiFePO4 and lead-acid, and includes adjustable screen brightness and audible/visual alarms to prevent over-discharge.

How accurate and reliable are the LNEX readings?

The LNEX 500A uses an upgraded high-precision current detector and a dedicated shunt to deliver steady, real-time voltage and current readings. The unit also retains the most recent data if the system shuts down, preventing gaps after power interruptions.

• High-precision current detector for improved accuracy
• Shunt-based measurement for stable current tracking up to 500A
• Automatic data storage on power loss to avoid missing records
• Compatible with 8–100V battery systems

What alarms and protections does it provide?

Programmable high and low voltage alarms notify you when battery levels reach set thresholds. When triggered, the monitor both sounds an alert and flashes the backlight and voltage readout so you won’t miss a warning in bright daylight or at night.

• High/low voltage alarm settings you can customize
• Backlight flashing and audible alerts for immediate attention
• Helps avoid over-discharge that shortens battery life
• Adjustable brightness to reduce nighttime drain and glare

Which battery types and systems are supported?

LNEX built the 500A to work across a wide range of chemistries and vehicle types. It supports LiFePO4, lithium-ion, sealed, gel, flooded lead-acid and other common battery technologies used in mobile and stationary power applications.

• Compatible with LiFePO4, lithium-ion, sealed/gel/flooded lead-acid
• Works with RVs, cars, boats, golf carts and e-motorcycles
• Monitors 8V–100V battery banks for versatility
• Low power consumption and adjustable brightness to preserve reserve energy

How easy is installation and daily use?

The monitor includes a transparent shunt holder with clearly marked positive and negative terminals to simplify wiring, plus a 16-foot shielded cable so the display can be mounted where it's convenient. The 2.4-inch color screen presents a user-friendly interface so readings are available at a glance.

• Transparent shunt holder for intuitive wiring alignment
• 16ft shielded lead lets you mount the display remotely
• Clear backlit color LCD for quick status checks day or night
• Simple navigation and programmable alarm thresholds

Who is this for: The LNEX 500A Shunt Battery Monitor is aimed at RV owners, boaters, off-grid hobbyists and small electric vehicle operators who need an accurate, compact and easy-to-read battery monitoring solution. If you want precise current/voltage tracking, programmable alerts and a display you can mount within reach, this unit covers multi-chemistry setups from 8V to 100V while preserving recorded data through power interruptions.