Renogy 500A Battery Monitor with Shunt

The Renogy 500A Battery Monitor with Shunt is a shunt-based battery monitoring system for off-grid, overlanding, RV, and van-build electrical setups, measuring voltage, current, and state of charge with ±1% accuracy across a working voltage range of 10–120V and up to 500A. The LCD interface mounts at the dash or panel while the included 20 ft shielded wire keeps the shunt at the battery bank, making remote monitoring practical in larger builds. One monitor works with Lead Acid (AGM, GEL), Lithium Iron Phosphate, Lithium-ion, and Nickel-metal hybrid battery banks.

Know Exactly What Your Battery Has Left

Guessing at battery state of charge leads to either cutting a trip short out of caution or running a battery bank into damaging over-discharge. The Renogy 500A Battery Monitor eliminates that guesswork by displaying voltage, current, consumed power, battery capacity, and battery degradation rate in real time on a single LCD screen. With ±1% accuracy on all three primary measurements (voltage, current, and capacity), the numbers on screen reflect what the battery bank is actually doing, not an approximation.

Configurable high and low capacity alarms add a safety layer: when the bank reaches a set threshold, the backlight and voltage value flash on screen to alert the user before over-discharge occurs. The preset capacity value is adjustable from 0.1 to 9999.0 Ah, covering everything from a single group-27 AGM to a large multi-battery LiFePO4 bank.

Low Power Draw, Persistent Data

A battery monitor that drains the bank it watches defeats its own purpose. The Renogy 500A Battery Monitor draws only 1–2mA in standby and 10–15mA during active monitoring. The backlight draws 100mA when current exceeds 50A and shuts down automatically at lower current levels to reduce parasitic draw. When power is interrupted, the monitor saves the last recorded data automatically, preserving readings in vehicles where the house battery is isolated when the ignition is off.

Straightforward Installation with Everything Included

The package ships with the LCD interface, 500A shunt/sampler, transparent shunt holder, 20 ft shielded wire, and B+ wire. No additional hardware purchase is required to complete a basic installation. The transparent shunt holder simplifies positioning and securing the shunt at the battery negative terminal. The 20 ft shielded wire between the shunt and the LCD interface gives enough reach to mount the display at a driver-accessible location in most van, truck, or trailer builds.

Specifications

Who This Is For and Isn't

The Renogy 500A Battery Monitor suits overlanders, van builders, RV owners, and off-grid cabin setups running a 10–120V battery bank of any of the four supported chemistry types, where a standalone panel-mounted display is preferred over a smartphone app. The 20 ft shielded wire and adjustable capacity preset make it practical for multi-battery banks and larger builds where the shunt and display need to be separated.

The Renogy 500A Battery Monitor is not rated for systems operating above 120V or drawing more than 500A. The LCD is not rated for prolonged direct sun exposure or UV environments, and must not be stored or operated below 14°F (-10°C) or above 140°F (60°C), as these conditions shorten LCD lifespan. This monitor does not include wireless or Bluetooth connectivity; remote monitoring requires a separate Bluetooth module.

Common Questions

Does the Renogy 500A Battery Monitor require a smartphone or app to function?

No. The Renogy 500A Battery Monitor operates entirely through its onboard LCD display and does not require a smartphone, tablet, or app. Voltage, current, consumed power, battery capacity, and battery degradation rate all display directly on the screen. A separate Bluetooth module is available for users who prefer app-based monitoring, but it is not included and not required.

Can the Renogy 500A Battery Monitor track more than two batteries at once?

Yes. The Renogy 500A Battery Monitor can monitor a bank of more than two batteries connected together. The preset capacity value is configurable from 0.1 to 9999.0 Ah to match the total bank size. Careful wiring per the included instructions is required when connecting a multi-battery system.

What does the Renogy 500A Battery Monitor display?

The Renogy 500A Battery Monitor displays voltage, current, consumed power, battery capacity, and battery degradation rate on a single LCD screen with an adjustable green backlight. High and low capacity alarms can be configured; when triggered, the backlight and voltage value flash on screen to alert the user.

How far can the display be mounted from the battery shunt?

The Renogy 500A Battery Monitor includes a 20 ft (6 m) shielded wire connecting the 500A shunt at the battery bank to the LCD interface. This allows the display to be mounted at a driver- or user-accessible location (such as a dash panel, wall panel, or cabinet face) while the shunt stays at the battery negative terminal up to 20 ft away.

What is included in the box with the Renogy 500A Battery Monitor?

The Renogy 500A Battery Monitor ships with the LCD interface, 500A shunt/sampler, transparent shunt holder, 20 ft shielded wire, and B+ wire. No additional hardware purchase is required to complete a basic installation.