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Product Information
Installation and Wiring-Overview
The RS-BM500 shunt should be mounted as close to the battery as possible, and the remote display is intended to be mounted on a wall.
Recommended Tools
- Wrench
- Drill
- Jigsaw
- 2 ring terminals of appropriate size for battery cable
- Crimp tool for ring terminals
Wiring Diagram
The following wiring diagram will be referenced in the next section.

Installation
- Before doing anything, disconnect all wires from the negative side of the battery.
- Cut the negative cable for the battery and crimp on new ring terminals. Alternatively, use a new wire of appropriate gauge to carry the full current demand of your system.
- Install the shunt as shown in the wiring diagram above.
Note: The negative terminal of the battery must connect directly to the “B-" side of the shunt, and there should be no other connections to the negative terminal of the battery for accurate measurements. - Use the B+ wire included in the package to connect the B+ terminal of the shunt to the positive side of the battery.
Note: Do not stack smaller terminals under large ones. - Connect the shunt to the remote display using the included shielded cable.
Mounting the Remote Display
- Plan the location of your remote display and keep in mind there is a cable that needs to route all the way to the shunt.
- Drill a hole in the center of the planned location and use the jigsaw to cut a hole according to the following picture.
- Connect the shielded cable to the shunt and route it such that you can bring it through the hole.
- Connect the shielded cable to the remote and snap the remote into place.
Specifications
- Model: RS-BM500
- Battery Voltage Range: 8-120V
- Working Dissipation: 10mA
- Standby Dissipation: 1mA
- Capacity Accuracy: ±1.0%
- Voltage Accuracy: ±1.0%
- Current Accuracy: ±1.0%
- Backlight On Current: 80mA
- Capacity Setting Value: 0-500A
- Current Range: 0.1-9999Ah
-
Package Dimensions: 8 × 6 × 3 in
- Gross Weight: 2 lb
| Specification | Value |
|---|---|
| Model | RS-BM500 |
| Battery Voltage Range | 8-120V |
| Working Dissipation | 10mA |
| Standby Dissipation | 1mA |
| Capacity Accuracy | ±1.0% |
| Voltage Accuracy | ±1.0% |
| Current Accuracy | ±1.0% |
| Backlight On Current | 80mA |
| Capacity Setting Value | 0-500A |
| Current Range | 0.1-9999Ah |
| Package Dimensions | 8 × 6 × 3 in |
| Gross Weight | 2 lb |
- 1 x 500 Amp Battery Monitor with Shunt
- Fittings and hardware as listed in the specifications
- User manual
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Frequently Asked Questions
Will it fit my system?
Check the specifications against your own equipment — ratings, connector type and voltage all need to match. We can confirm compatibility on 1-332-291-6885.
Is anything else needed to install it?
The item ships with the fittings listed in the specifications. You may need basic tools and cable suited to your own run.