Multi Battery Monitor

Up to 4 Batteries. One Screen. Zero Wires.

The ultimate display for Li-Ion battery packs. Real-time Bluetooth monitoring for up to 4 batteries, tracking individual health and calculating your total State of Charge (SoC) on a single high-contrast dashboard.

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Where It Can Be Used

Designed for off-grid freedom and critical power visibility, wherever you draw your energy.

Sailing & Motor Boats

Maximize your time at anchor. Monitor your service battery bank wirelessly to know exactly how much off-grid power you have left before you ever need to think about a marina hookup or running a generator.

Motorhomes & Camper Vans

Space is premium on the open road. Ditch the bulky analog gauges and heavy wiring looms for a compact Bluetooth display that lets you check your overall system SoC right from the driver’s seat.

Other Off-Grid Systems

Versatile monitoring for independent power systems. From isolated solar banks and tiny homes to remote DIY field boxes, MultiBM adapts instantly to keep any custom battery network perfectly visible.

Engineered for Total Battery Visibility

The smart, cable-free solution to track your lithium power storage

Seamless Bluetooth Pairing

MultiBM pairs instantly with your batteries using an ultra-stable, low-energy Bluetooth protocol. Simply mount the display wherever you need it, power it up, and enjoy real-time wireless diagnostics without drilling holes or pulling thick cables through your vehicle or vessel.

Up to 4-Cell Smart Tracking

Whether you are monitoring a single isolated battery or a Li-Ion pack configuration, MultiBM effortlessly scales its user interface. The display cleanly balances the layout, giving you a detailed view of individual battery performance without cluttering the screen.

Consolidated State of Charge (SoC)

MultiBM features a built-in aggregation algorithm that continuously cross-references your cell data. It handles the math for you, delivering a single, massive, easy-to-read overall SoC percentage. You’ll know exactly how much total energy is left in your entire ecosystem.

Technical Specifications

Engineered for precision performance and low power consumption

Feature/ Metric	Specification Details
Supported Batteries	Any Batteries with BMS with Bluetooth access
Configuration Scalling	Automatically scales from 1, 2, 3, or up to 4 batteries
Wireless Connectivity	Dual Wireless: Bluetooth Low Energy (for real-time batteries tracking) + Wi-Fi (dedicated for smartphone setup mode)
Power Consumption	Low idle draw ($<200\text{mA}$ average operational current)
Power Input	Native USB-C (5V) or via optional 12V-to-5V USB-C Step-Down Adapter
Operating Voltage	5V DC Native (Compatible with standard 12V DC vehicle/vessel grids via adapter)
Display Type	High-contrast, daylight-readable touchscreen display
User Interface Modes	Dual-Screen Layout: 1x Consolidated Dashboard / 1x Independent Battery Grid
Tracked Metrics	State of Charge (SoC %), Energy Consumption (A), Battery Capacity (Ah) and Remaining Battery Capacity (Ah)

Zero data lines, zero complex routing. MultiBM operates entirely over wireless Bluetooth. The only connection required is a single power cable using a standard USB-C plug or our 12V DC step-down adapter.

Consolidated Dashboard

Independent Battery Grid

Everything You Need to Get Started

Unbox, power up, and start monitoring. No hidden extras required.

The MultiBM Smart Display

The sleek, high-contrast digital panel pre-loaded with our dual-screen monitoring software.

USB-C Power Cable

A high-quality, durable power cable for instant plug-and-play setup into any standard 5V USB port.

12V-to-5V Step-Down Adapter (optional)

The hardware needed to wire your display directly into your vehicle or vessel’s existing 12V DC fuse block.

Built for Adventurers, Trusted Off-Grid

Order with absolute confidence. Your security and satisfaction are our top priorities.

Risk-Free 30 Days

Love it or return it. Risk-free testing for a full month.

Fast Global Shipping

Tracked, reliable delivery straight to your doorstep, wherever you are.

Plug-and-Play Certified

Zero soldering, zero terminal crimping, and zero advanced electrical engineering required to install.

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Got Questions? We’ve Got Answers.

Everything you need to know about setting up your multi battery monitor.

You only need to run a single power cable. There are absolutely zero data wires to route to your batteries. You can power the display instantly using a standard 5V USB-C cable, or use the optional 12V-to-5V step-down adapter to hardwire it straight into your 12V DC fuse block. All battery data is transmitted 100% wirelessly via Bluetooth

Yes! MultiBM features a dual-screen interface. The default home screen gives you a high-level overview of your entire system’s combined SoC, current capacity and total capacity. With a quick toggle, you can switch to the detailed diagnostics page, which breaks down the exact SoC, voltage, live consumption, current capacity, and total capacity for up to 4 batteries separately on a single screen.

MultiBM is designed to interface seamlessly with Li-Ion smart battery configurations equipped with compatible Bluetooth BMS platforms. It automatically scales its user interface depending on whether you are tracking 1, 2, 3, or 4 batteries.

Setup is incredibly simple and entirely wireless. When you put your MultiBM into Setup Mode, you simply connect your mobile phone to the display over its built-in Wi-Fi network. From your phone’s browser or app interface, you can effortlessly choose exactly which batteries to monitor and configure your system layout in under two minutes.

Our Simple
Straight-Forward Pricing

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