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RELiON® InSight Accessories - Fuel Gauge

RELiON® InSight Series® Fuel Gauges: Accurate Monitoring for 12V, 24V, and 48V Batteries

The RELiON® InSight Series® Fuel Gauges provide precise and real-time monitoring of battery charge levels for 12V, 24V, and 48V lithium battery systems, ensuring you know exactly when it's time to recharge. Designed with a low current draw of just 29 milliamps and equipped with a backlit display, this gauge shows the state of charge (SOC) for up to 14 InSight batteries connected in parallel. The gauge receives real-time data from all connected battery CANs and calculates the remaining amp hours as a percentage from 0 to 100%. It’s perfect for Marine, RV, Solar, Golf, and Material Handling applications, ensuring consistent performance across various uses.

Each fuel gauge comes with a mounting bracket, though the wire harness required for setup is sold separately. The fuel gauge features two critical alerts: a “LOBATT” message that displays when the SOC drops below 20%, and a flashing "LOBATT" message when it falls below 10%, ensuring timely recharges. Built to withstand extreme conditions, the gauge operates in temperatures from 14°F to 185°F (-10°C to 85°C) and can be safely stored at temperatures as low as -40°F (-40°C). With an ingress protection rating of IP67, the fuel gauge is dust-tight and waterproof, making it durable in harsh environments. The product is backed by a 1-year warranty, which includes free replacement or repair during the first year.

For ease of installation, compatible wire harnesses are available separately in 3, 6, and 10-meter options, offering flexible setup for a variety of applications.


  • Included: one fuel gauge and one mounting bracket.
  • State of Charge (SOC) as a percentage from 0-100%
  • A “LOBATT” message will display when the battery bank is below 20% SOC
  • A “LOBATT” message will flash when the battery bank is below 10% SOC
  • Operating Temperature: 14°F to 185°F (-10°C to 85°C)
  • Storage Temperatures: -40°F to 185°F (-40°C to 85°C)
  • 1-year Warranty – 1 year Free Replacement or Repair Period
  • Ingress Protection Rating :IP67
  • Fuel Gauge Wire Harness Sold Separately Available in 3 Meter (#90WIREBI314003), 6 Meter (#90WIREBI314006) & 10 Meter (#90WIREBI314010) Cable
  • Complete Insight Series Quick Installation Guide

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90BI3140R12 RELiON BI-3140R-12, LIFEPO4 InSight Fuel Gauge GC2, 12V, MODEL 3140R12 drawing 174.95 1 EA
90BI3140R2448 RELiON BI-3140R-2448, LIFEPO4 InSight GC2 24V and 48V Fuel Gauge, MODEL 3140R2448 drawing 174.95 1 EA
90WIREBI314003 RELiON WIRE BI-3140-03, LIFEPO4 InSight Fuel Gauge Wire Harness with 3 Meter Cable 25.00 1 EA
90WIREBI314006 RELiON WIRE BI-3140-06, LIFEPO4 InSight Fuel Gauge Wire Harness with 6 Meter Cable 25.00 1 EA
90WIREBI314010 RELiON WIRE BI-3140-10, LIFEPO4 InSight Fuel Gauge Wire Harness with 10 Meter Cable 30.00 1 EA

RELiON® InSight Accessories - Remote Power Button

RELiON® InSight Series® Remote Button: Effortless Battery Control

The RELiON® InSight Series® Remote Button offers the convenience of powering on and off your InSight Series® batteries without the need to access the battery compartment directly. This easy-to-use, plug-and-play accessory can control up to 10 InSight batteries connected in parallel, ensuring you save time and energy. Designed for seamless integration, the Remote Button is compatible with the InSight Series® 12V, 24V, and 48V Fuel Gauges, allowing for streamlined battery management. It's important to note that InSight batteries should never be connected in series, only in parallel.

For flexibility in installation, the Remote Button is available with 3, 6, or 10-meter cable options. To ensure proper functionality when installing the Remote Button without a fuel gauge, a CAN termination resistor (Part No. 90CANTR) is required. RELiON® stands behind this product with a 1-year warranty, providing free replacement or repair within the warranty period.


  • Can be used with the InSight Series® 12V, 24V and 48V Fuel Gauges
  • Power On or Off up to 10 InSight Batteries connected in parallel. (InSight batteries should never be connected in series.)
  • Available is 3, 6 and 10 Meter Cable
  • 1-year Warranty – 1 year Free Replacement or Repair Period
  • The CAN termination resistor is also required (Part No. 90CANTR), when installing the Remote button only (with out the Fuel Gauge)
  • Complete Insight Series Quick Installation Guide

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90RSGC203 RELiON RS-GC2-03, LIFEPO4 InSight GC2 M8 Remote Power Button with 3 Meter Cable 12.50 1 EA
90RSGC206 RELiON RS-GC2-06, LIFEPO4 InSight GC2 M8 Remote Power Button with 6 Meter Cable 16.50 1 EA
90RSGC210 RELiON RS-GC2-10, LIFEPO4 InSight GC2 M8 Remote Power Button with 10 Meter Cable 19.50 1 EA

RELiON® InSight Accessories - CAN BUS

RELiON® InSight Series® CANBUS Cables and Splitter: Seamless Integration for Battery Monitoring

The RELiON® InSight Series® CANBUS Cables and Splitter provide an efficient connection solution for the Fuel Gauge Remote Button Switch, enabling convenient battery monitoring and control. To install, simply insert the CANBUS plug attached to the remote button cable assembly into the provided CANBUS splitter on the first battery in the bank. Then, connect the CANBUS splitter to the CANBUS IN port on the first battery in the string. This setup allows you to control the InSight battery system with ease. To test, press the remote button for approximately five seconds until all connected InSight batteries power on, indicated by LED 1 flashing green on each battery.

Each InSight battery includes a 1-foot CANBUS cable with 90° connectors for simple setup. These cables ensure reliable communication between batteries and the remote control system, allowing for seamless battery management. For optimal performance, it is important to use cables of equal lengths when connecting InSight batteries in parallel.


  • Can be used with the InSight Series® 12V, 24V and 48V Fuel Gauges
  • Be sure to use cables of equal lengths to connect your InSight batteries.
  • CANBUS cables (1 ft) are provided with your InSight battery.
  • CANBUS cables have 90° connectors.
  • Complete Insight Series Quick Installation Guide

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90CABLECS1 RELiON CABLE CS1, LIFEPO4 InSight Can Splitter Cable, M8, 5 Pin, with 30 Centimeter Cable 12.50 1 EA
90CABLECB2TP RELiON CABLE-CB2-TP, LIFEPO4 InSight 90° CAN BUS Cable, TwistedPair, 2 ft. 10.95 1 EA
90CANTR RELiON CAN-TR, LIFEPO4 InSight CAN Termination Resistor Assembly 9.95 1 EA

RELiON® InSight Accessories - Battery Analyzer

RELiON® Portable Battery Analyzer for Insight LiFePO4 Batteries: Real-Time Data, Software Updates, and Performance Analysis

The RELiON® Portable Battery Analyzer (PBA) is designed for Insight series LiFePO4 (Lithium Iron Phosphate) batteries, offering comprehensive real-time insights into both individual batteries and battery banks connected in parallel. Known for their safety, stability, and low heat generation, Insight batteries are ideal for various applications such as marine, RV, solar, golf, and material handling. By connecting the PBA to the battery's CAN bus port, users can access critical data, including the battery's state of charge (SOC), cycle count, and cell voltages. In addition to monitoring, the PBA allows for battery software updates and records battery performance for detailed analysis.

Key specifications of the RELiON® PBA include compatibility with CANBus cables, a USB Type-C charge port, 11.7Wh capacity, and a 3-hour full charge time. It features a 2.211-inch x 3.685-inch LCD display for easy data visualization. The analyzer operates in a wide temperature range from -4°F to 58°F (-20°C to 50°C) and supports storage temperatures between -4°F and -40°F (-20°C to 40°C). These capabilities make the RELiON® PBA an essential tool for ensuring optimal battery performance across various industries.


  • Compatible with the CANBus cable of Insight’s batteries
  • Charge Port: USB Type C
  • Capacity: 11.7Wh/ 3.67V 3200mAh
  • Input Recharging: DC 5V - 2A
  • Fully Charge Time: 3 Hours
  • LCD Display size: 2.211 in (W) x 3.685 in (H)
  • Operating Temperature: -4°F to -58°F to (-20°C- 50°C)
  • Storage Temperatures: -4°F to -40°F to (-20°C- 40°C)
  • Portable Battery Analyzer User Manual, Portable Battery Analyzer Spec Sheet

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90BAIP RELiON BA-IP, LIFEPO4 InSight Portable Battery Analyzer drawing 499.99 1 EA

RELiON® InSight Accessories Battery Spacer

RELiON® Battery Spacers: Easy Installation for Drop-In Replacement Batteries

RELiON® Battery Spacers are designed to fill empty battery slots when installing true drop-in replacement batteries, simplifying the installation process by allowing the use of existing battery hold-downs in your vehicle. These spacers ensure a secure fit, making them ideal for use in golf carts and low-speed vehicles. Manufactured with the same safety and reliability standards as RELiON® LiFePO4 (Lithium Iron Phosphate) batteries, they offer a stable, heat-resistant solution. To ensure a perfect fit, we recommend purchasing the appropriate number of spacers to properly fill all empty slots in your cart or vehicle.

Each GC2 size battery spacer measures 10.2 x 7.1 x 10.9 inches, providing an easy solution for retrofitting drop-in lithium replacements into your existing battery compartment.


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90SPGC2 RELiON SP-GC2, LIFEPO4 InSight GC2 Battery Spacer 20.95 1 EA
Prop65 Warning