Victron Energy VE.Bus BMS NG Battery Management System, For Lithium NG Batteries

Overview

The Victron Energy BMS300200300 is a VE.Bus BMS NG battery management system for Victron Lithium NG batteries in installations that use Victron VE.Bus inverters or inverter/chargers. It supports 12V, 24V, and 48V Lithium NG battery banks and monitors individual cell voltage and temperature conditions before commanding charge or load disconnect actions.

This unit is a good fit for boats using Victron lithium power systems where the inverter/charger, chargers, DC loads, and monitoring devices need to respond correctly to battery protection limits. Built-in Bluetooth Smart lets the system be configured, monitored, and updated through VictronConnect, with key battery data such as voltage, current, state of charge, battery temperature, warnings, and alarms available from the battery through the BMS.

The compact enclosure measures 105.8 mm x 95 mm x 23.2 mm and weighs about 120 g, which helps when planning a clean installation inside a protected electrical locker, console, or equipment panel. It is not compatible with Victron Lithium Battery Smart batteries, so it should be matched specifically with Victron Lithium NG batteries.

Key features

• Works with Victron Lithium NG batteries in VE.Bus inverter or inverter/charger systems.
• Supports Lithium NG battery banks arranged for 12V, 24V, or 48V systems.
• Monitors cell overvoltage, cell undervoltage, over-temperature, and under-temperature conditions.
• Can disable inverting through VE.Bus and disconnect other loads through the Load Disconnect terminal when a cell undervoltage condition occurs.
• Can disable charging through VE.Bus, control compatible solar chargers through a GX device, and disconnect other chargers through the Charge Disconnect terminal when battery protection requires it.
• Bluetooth Smart support allows wireless configuration, monitoring, and firmware updates through VictronConnect.
• Pre-alarm output gives advance warning of an imminent cell undervoltage condition and can drive a relay, LED, or buzzer up to 1A.
• Remote on/off terminal allows the Load Disconnect and Charge Disconnect outputs to be controlled from a remote switch or system control point.
• Three LED indicators show Bluetooth status, warning or alarm errors, and VE.Bus status.
• Remote panel connection supports use with a GX device, Digital Multi Control panel, VE.Bus Smart Dongle, or a combination of these devices.

Installation and setup

Install the BMS in a dry, protected location with access to the VE.Bus equipment, battery communication wiring, and any remote control or alarm wiring used on the vessel. On a boat, this usually means a serviceable electrical compartment rather than an exposed bilge, cockpit, or washdown area.

MultiPlus, Quattro, and compatible VE.Bus inverters connect through the MultiPlus/Quattro port using a standard RJ45 UTP cable. The BMS can then command the VE.Bus equipment to stop inverting or stop charging when the Lithium NG battery status requires protection.

Electrical and system integration

The Load Disconnect output is used for loads with a remote on/off input, such as a BatteryProtect, inverter, DC-DC converter, or other controlled DC load. The Charge Disconnect output is used with compatible chargers or charge-control devices so that charging can be stopped when a cell overvoltage or temperature condition is detected.

A GX device such as a Cerbo GX can be part of the installation when the boat needs system-level visibility or control of compatible chargers. This makes the unit useful for cruising yachts, fishing boats, and workboats that already use Victron monitoring and want battery protection actions to be coordinated through the onboard power system.

Compatibility and fit

This BMS is for Victron Lithium NG batteries only. It should not be used as a replacement for BMS models intended for Victron Lithium Battery Smart batteries, and it should be checked against the existing inverter, inverter/charger, charger, and remote control layout before installation.

The unit suits installations where a compact BMS is needed close to the core DC power equipment, with clear wiring paths to the battery bank, VE.Bus device, remote panel devices, load control circuits, and charge control circuits.

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Returns may be requested within 30 days of receiving your order. Items must be unused, uninstalled, unaltered, and returned in their original packaging with all tags, packing materials, blank warranty cards, manuals, instructions, accessories, and included items. Certain products, including installed or used electronics, electrical components, lighting, consumables, custom or special-order items, cut-to-length products, safety equipment, and merchandise exposed to water or marine conditions, may not be eligible for return.

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Customers are responsible for arranging and paying for return shipping unless the return is due to an error by Apollo Lighting or the item is verified as defective, damaged, or incorrect. Missing, damaged, defective, or incorrect items must be reported within 2 business days of delivery, and photos or other documentation may be required for review. If the issue is verified, Apollo Lighting may provide or reimburse return shipping and issue a replacement or refund depending on the circumstances. International customers are responsible for return shipping, duties, taxes, customs charges, brokerage fees, and other costs associated with an international return.

After your return is received and inspected, approved refunds are issued to the original payment method and may take 5-7 business days to appear after processing. Original shipping and handling charges are nonrefundable, and the value of any included free items that are not returned may be deducted from the refund. Apollo Lighting does not charge a standard restocking fee on eligible returns. Returns that are incomplete, damaged, installed, used, altered, improperly packaged, or otherwise do not meet the eligibility requirements may be refused. We recommend using a trackable and appropriately insured shipping service for all customer-arranged returns.

For assistance, contact info@apollolighting.com or call +1 (954) 375-0100.

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Many products sold by Apollo Lighting include a manufacturer's warranty covering defects in materials or workmanship. Warranty terms vary by brand, product category, and model, so eligibility, coverage duration, exclusions, and available remedies are determined by the applicable manufacturer. We recommend reviewing the warranty information provided with your product before installation or use, especially for marine electronics, navigation equipment, lighting, electrical systems, pumps, safety equipment, and other specialized marine products.

If you need warranty service, the claim must follow the process established by the manufacturer, authorized service center, or designated warranty provider. You may be asked for proof of purchase, a serial number, product registration, photos, maintenance or installation records, or other documentation. Apollo Lighting does not determine or modify a manufacturer's warranty coverage or final claim decision, but we are happy to help provide purchase information and direct you to the appropriate manufacturer or warranty resource.

Keep your receipt, product documentation, serial number information, and original packaging when practical. Damage caused by normal wear, misuse, improper installation, insufficient maintenance, corrosion, impact, unauthorized modifications, electrical issues, or operation outside the manufacturer's specifications may not be covered. Warranty claims are separate from standard returns, so a product that has been installed, used, or exposed to marine conditions may no longer qualify for return while still remaining eligible for evaluation under the manufacturer's applicable warranty.

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