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Victron miniBMS /smallBMS NG

Use when there is no MultiPlus in the system


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DESCRIPTION

Victron miniBMS: Simple, Cost-Effective Battery Management

The Victron miniBMS is a compact, cost-effective battery management solution designed to protect Victron Smart LiFePO₄ batteries with M8 circular connectors. It delivers essential battery protection functions but has no VE.Bus interface, so it is not suitable for controlling VE.Bus MultiPlus or Quattro inverter/chargers.

Load Disconnect Output

The Load Disconnect output is normally high and becomes free-floating when cell under-voltage is detected to help prevent deep discharge. Maximum output current is 1 A (not short-circuit protected).

  • Drive a high-current relay or contactor (via suitable interfacing).
  • Control remote on/off inputs of devices such as BatteryProtects, inverters, DC-DC converters, or other loads (some devices may require specific on/off cabling).

Pre-Alarm Output (Early Warning)

The Pre-Alarm output provides an early warning of imminent under-voltage. It is normally free-floating and becomes active during low-voltage conditions, with a minimum 30-second delay before load disconnect occurs. Maximum output current is 1 A (not short-circuit protected).

Charge Disconnect Output

The Charge Disconnect output is normally high and becomes free-floating when cell over-voltage or over-temperature conditions are detected. It is a signal output only, with a maximum current of 10 mA, and is not suitable for powering inductive loads such as relay coils.

  • Remote on/off control of compatible chargers.
  • Control of Cyrix-Li-Charge relays and Cyrix-Li-ct battery combiners.

System On/Off Input

A Remote L / Remote H input allows external on/off control (e.g., switch or relay contact). When set to “off”, both load and charge outputs are placed in the free-floating state to disable loads and charging.

Wide Voltage Compatibility

Designed for 12 V, 24 V, and 48 V systems, with an operating supply range of 8–70 V DC.

LED Indicators

  • Load ON (Blue): Load output is high and cell voltage is above the configured threshold.
  • Temp or OVP (Red): Charge output is free-floating due to temperature limits (high or low) or over-voltage protection being active.

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SKU: VIC-BMS400100300

SPECIFICATIONS

Product smallBMS NG
Operating voltage (Vbat) 8 – 70 Vdc
Power supply cable and fuse (not supplied)
Recommended fuse size 0.3 A - 2.5 A, dependent on devices connected to Load disconnect and pre-alarm output
Current consumption, remote on 3mA (excluding Load and Charge disconnect output current)
Current consumption, low cell voltage 1.2 mA
Current consumption, remote off 1.2 mA
Load disconnect output Normally high (Vbat – 0.1 V)
Source max current: 1 A (not short circuit protected)
Sink current: 0 A (output free floating)
Charge disconnect output Normally high (Vbat – 0.1 V)
Source max current: 500 mA (not short circuit protected)
Sink current: 0A (output free floating)
Pre-alarm output Normally free-floating (low)
In case of alarm: output voltage Vbat -0.1 V
Maximum output current: 500 mA (not short circuit protected)
Remote on/off: Remote L and Remote H Use modes:
1. ON when the L and H terminal are interconnected
2. ON when the L terminal is pulled to battery minus (V < 3.5 V)
3. ON when the H terminal is high (2.9V < VH < Vbat)
4. OFF in all other conditions
GENERAL
Operating temperature range -20 to +50 °C (0 – 120 °F)
Humidity Max. 95 % (non-condensing)
Protection grade IP20
ENCLOSURE
Material and colour ABS, matt black
Weight 0.1 kg
Dimensions (h x w x d) 106 x 42 x 23 mm
STANDARDS
Safety EN 60950
Emission EN 61000-6-3, EN 55014-1
Immunity EN 61000-6-2, EN 61000-6-1, EN 55014-2
Automotive Regulation UN/ECE-R10 Rev.4 - pending

SKU: VIC-BMS400100300
Barcode: 8719076063537
Model #: BMS400100300
MPN: BMS400100300

WARRANTY

Victron Energy Limited Warranty Policy

Victron Energy warrants its products to be free from defects in workmanship and materials for a period of 5 years from the date of purchase by the end user, with a maximum of 66 months from the Victron Energy invoice date. Exceptions on this are: lead acid batteries; 2 years from date of purchase by the end user, with a maximum of 30 months from the Victron Energy invoice date, Lithium-ion batteries; 3 years from date of purchase by the end user. In addition to this proof of correct battery usage is required when making a battery warranty claim.

During this period, Victron Energy will, at its option, repair or replace the defective product free of charge. The warranty does not include performing or reimbursing de‐installation, transportation and re‐installation. This warranty will be considered void if the unit has suffered any physical damage or alteration, either internally or externally, and does not cover damages arising from improper use like: • Reverse of battery polarity. • Inadequate connection. • Mechanical shock or deformation. • Contact with liquid or oxidation by condensation. • Use in inappropriate environment (dust, corrosive vapor, humidity, high temperature, biological infestation...). • Breakage or damage due to lightning. • Connection terminals and screws destroyed or other damages, like overheat, due to insufficient tightening. • For any electronical breakage except due to lightning (reverse polarity, over‐voltage due to external cause), the state ofthe internal control diode and of the inputs/output X and Y capacitors determine the warranty.

This warranty will not apply where the product has been misused, neglected, improperly installed, or repaired by anyone else than Victron Energy or one of its authorized Qualified Service Partners. In order to qualify for the warranty, the product must not be disassembled or modified.

Repair or replacement are our sole remedies and Victron Energy shall not be liable for damages, whether direct, incidental,special, or consequential, even caused by negligence or fault.

Victron Energy owns all parts removed from repaired products. Victron Energy uses new or reconditioned parts made by various manufacturers in performing warranty repairs and building replacement products. If Victron Energy repairs or replaces a part of a product, its warranty term is not extended. In case of replacement the new component has a warranty of 6 months, without effect on the initial warranty period. All remedies and the measure for damages are limited to the above. Victron Energy shall in no event be liable for consequential, incidental, contingent orspecial damages, even if having been advised of the probability of such damages. Any and all other warranties expressed or implied arising by law, course of dealing, course of performance, usage of trade or otherwise, including but not limited to implied warranties of merchantability and fitness for a particular purpose, are limited in duration to a period of two (2) years from the date of purchase.

Life Support Policy As a general policy, Victron Energy, does not recommend the use of any of its products in life support applications where failure or malfunction of the Victron Energy's product can be reasonably expected to cause failure of the life support device or to significantly affect its safety or effectiveness. Victron Energy does not recommend the use of any of its products in direct patient care. Victron Energy will not knowingly sell its products for use in such applications unless it receives in writing assurances satisfactory to Victron Energy that the risks of injury or damage have been minimized, the customer assumes all such risks, and the Liability of Victron Energy is adequately protected under the circumstances.

As a product requires service, it must be brought back to the place of purchase. In case no contact can be taken with the merchant, or if he is either unable or not allowed to provide service, direct contact should be taken with Victron Energy.

Warranty on Repairs The warranty period on products or on printed circuits boards repaired by Victron Energy as well as on printed circuit boards for replacement is 6 months from delivery by Victron Energy.

Transport It is the responsibility of the sender to sufficiently package these products. The transport must be organized in a way to avoid any damage, especially when a single unit or heavy unit is sent.

Severability If a part of the terms and conditions set out above is held invalid, void or unenforceable due to any particular national or international legislation, it shall not affect other parts of the terms and conditions remaining.

For Australia only Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

Exotronic provides high-quality products and solutions tailored for B2B and commercial customers, including commercial businesses, caravan manufacturers, marine electricians, OEMs, as well as emergency services, and more.

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