Victron SmallBMS

Victron SmallBMS

Victron SmallBMS Victron SmallBMS All-in-one battery management system for the Victron Lithium Battery Smart series. The SmallBMS reads cell voltage and cell temperature via the battery's two M8 round connector cables and switches off loads and chargers as soon as a limit value is about to be exceeded. A simple and cost-effective alternative to the VE.Bus BMS, provided the system does not include a VE.Bus inverter/charger. Applications Are you building a lithium system without MultiPlus or Quattro? Then this is the BMS you need: compact, affordable, and fully tailored to the Lithium Battery Smart battery bank. Load disconnect, charge disconnect, and a pre-alarm on a single module, directly connectable to a BatteryProtect, MPPT charger, or inverter. This ensures your battery bank remains protected against deep discharge, overcharging, and temperature limits, without having to resort to a larger and more expensive BMS. * Motorhomes, caravans, and commercial vehicles with a Smart lithium battery bank * Sloops and yachts without a VE.Bus inverter/charger * Off-grid and backup systems on 12 V, 24 V, or 48 V * Installations with MPPT chargers, DC-DC chargers, and BatteryProtects * Compact installations where a Lynx Smart BMS proves too large or too heavy Suitable and Unsuitable for The SmallBMS is intended for Victron Lithium Battery Smart batteries of 12.8 V and 25.6 V with M8 round connectors. It does not have a VE.Bus interface and is therefore not compatible with MultiPlus and Quattro inverter/chargers; in that case, choose a VE.Bus BMS. Also not compatible with the NG batteries — these require a BMS from the NG series. Load disconnect output * Normally high (Vbat – 0.1 V), becomes floating in case of imminent low cell voltage * Output current limit 1 A, not protected against short circuit * Controls the remote on/off input of a BatteryProtect, inverter, DC-DC converter, or other load with remote on/off function * Due to the 1 A, the output also controls a high-current relay or contactor * Depending on the connected device, an inverting or non-inverting on/off cable is required Charge disconnect output * Normally high (Vbat – 0.6 V), becomes floating in case of imminent cell overvoltage or when cell temperature is above 50 °C or below 5 °C * Output current limit 10 mA, protected against short circuit * Controls the remote on/off port of, for example, a Phoenix Smart Charger IP43, a Cyrix-Li-Charge, a Cyrix-Li-ct, or a BatteryProtect * Not suitable for powering an inductive load such as a relay coil Pre alarm output The pre The alarm output is normally floating and turns high (Vbat – 0.1 V) in the event of imminent low cell voltage. There is a minimum of 30 seconds between the pre-alarm and the actual switching off of the load disconnect output — enough to switch on a charger or remove the load before the DC system fails. Maximum output current 1 A, not protected against short circuits; sufficient for a relay, LED, or buzzer. Remote system on/off * Two terminals: Remote L and Remote H * ON when L and H are interconnected, when L is pulled to accumulator negative (V < 3.5 V) or when H is high (2.9 V < VH < Vbat) * In the OFF position, both outputs become floating, switching off loads and chargers * A switch or the supplied wire loop between L and H is mandatory for correct operation Battery bank configuration * Series, parallel, and series/parallel for 12 V, 24 V, or 48 V * Maximum of 20 batteries per system: up to 84 kWh at 12 V and up to 102 kWh at 24 V and 48 V * Loop through M8 communication cables from all batteries in the chain; the two remaining cables to the SmallBMS * Keep the number of batteries in series as low as possible: build 24 V preferably with 25.6 V batteries and 48 V with two 25.6 V batteries in series — four 12.8 V batteries in series works, but requires more balancing time LED indication * Blue: load disconnect output high, cell voltage above the threshold set in the battery * Red: charge disconnect output floating due to too high or too low cell temperature or too high cell voltage Installation * Preferably mount on a vertical surface * Pull the wire loop out of the remote terminal before wiring * Connect the negative terminal of the lithium battery to the system only as the last step * Recommended fuse in the power cable: 0.3 to 2.5 A, depending on what is connected to the load disconnect and pre-alarm outputs * Protection class IP20: exclusively for dry, indoor mounted applications Available to order directly * Victron VE.Direct non-inverting remote on-off cable (https://shop.top.systems/installatie/kabels/remote-control/victron-ve-direct-non-inverting-remote-on-off-cable.html) (ASS030550320) — for BlueSolar MPPT and SmartSolar MPPT up to 150/35, in Remote control (https://shop.top.systems/installatie/kabels/remote-control/) * Victron Inverting remote on-off cable (https://shop.top.systems/installatie/kabels/remote-control/victron-inverting-remote-on-off-cable.html) (ASS030550100) — for Phoenix VE.Bus inverters from 1200 VA, in Remote control (https://shop.top.systems/installatie/kabels/remote-control/) * Victron Non Inverting remote on-off cable (https://shop.top.systems/installatie/kabels/remote-control/victron-non-inverting-remote-on-off-cable.html) (ASS030550200) — for Skylla TG battery chargers, in Remote control (https://shop.top.systems/installatie/kabels/remote-control/) * Victron Skylla-i on/off remote control cable (https://shop.top.systems/installatie/kabels/communicatie/victron-skylla-i-aan-uit-afstandsbedieningskabel.html) (ASS030550400) — for Skylla-i battery chargers, in Communication (https://shop.top.systems/installatie/kabels/communicatie/) Related products * Victron lithium battery 12.8V/100Ah Smart (https://shop.top.systems/accu-s/lithium/victron-lithium-accu-12-8v-100ah-smart.html) (BAT512110610) * Victron lithium battery 12.8V/180Ah Smart (https://shop.top.systems/accu-s/lithium/victron-lithium-accu-12-8v-180ah-smart.html) (BAT512118610) * Victron lithium battery 12.8V/200Ah-a Smart (https://shop.top.systems/accu-s/lithium/victron-lithium-accu-12-8v-200ah-a-smart.html) (BAT512120610) * Victron Lithium battery 25.6V/100Ah Smart (https://shop.top.systems/accu-s/lithium/victron-lithium-battery-25-6v-100ah-smart.html) (BAT524110610) * Victron lithium battery 25.6V/200Ah Smart-a (https://shop.top.systems/accu-s/lithium/victron-lithium-accu-25-6v-200ah-smart-a.html) (BAT524120610) * Victron Battery Management System VE.Bus 2 (https://shop.top.systems/accu-s/accessoires-accu-s/victron-battery-management-system-ve-bus-2.html) (BMS300200200) — the alternative for systems with a VE.Bus inverter/charger Documentation * Datasheet smallBMS, Dutch (PDF) (https://www.victronenergy.nl/upload/documents/Datasheet-smallBMS-with-pre-alarm-NL.pdf) * Datasheet smallBMS, English (PDF) (https://www.victronenergy.com/upload/documents/Datasheet-smallBMS-with-pre-alarm-EN.pdf) * smallBMS Manual, Dutch (PDF) (https://www.victronenergy.com/upload/documents/smallBMS_with_pre-alarm/128558-smallBMS_with_pre-alarm-pdf-nl.pdf) * smallBMS Manual, English (PDF) (https://www.victronenergy.com/upload/documents/smallBMS_with_pre-alarm/128558-smallBMS_with_pre-alarm-pdf-en.pdf) * Victron Energy smallBMS Product Page (https://www.victronenergy.nl/battery-management-systems/smallbms) * Manual (PDF) (https://shop.top.systems/_clientfiles/Documents/Manuals/BMS400100000_Victron-SmallBMS.pdf) * Datasheet (PDF) (https://shop.top.systems/_clientfiles/Documents/Datasheets/BMS400100000_Victron-SmallBMS.pdf) Contact The choice of BMS determines how your installation behaves during a cell alarm, and the SmallBMS is ruled out as soon as a VE.Bus inverter/charger is present in the system. As an official Victron distributor, we supply from our own stock in Bodegraven and directly from the Victron Energy warehouse, and our engineers assess your BMS choice against the rest of the installation. Contact us (https://www.top.systems/nl/contact/) for advice or a quotation. Specifications Suitable for Victron Lithium Battery Smart, 12.8 V and 25.6 V, with M8 round connectors System voltage 12 V, 24 V and 48 V Operating voltage (Vbat) 8 – 70 Vdc Load disconnect output Normal high (Vbat – 0.1 V); 1 A, not short-circuit proof Charge disconnect output Normal high (Vbat – 0.6 V); 10 mA, short-circuit proof Pre-alarm output Normal floating; upon alarm Vbat – 0.1 V; 1 A, not short-circuit proof Delay pre-alarm to load disconnect Minimum 30 seconds Charge disconnect at cell temperature Above 50 °C or below 5 °C System on/off Remote L and Remote H Power consumption, remote on 2.2 mA Power consumption, low cell voltage 1.2 mA Power consumption, remote off 1.2 mA Recommended fuse power cable 0.3 – 2.5 A Battery communication Two M8 round connector cables, daisy-chainable Max. batteries per system 20 (up to 84 kWh at 12 V, up to 102 kWh at 24 V and 48 V) VE.Bus interface Not present Operating temperature -20 to +50 °C Humidity Max. 95 %, non-condensing Protection class IP20 Housing ABS, matte black Dimensions (hxwxd) 106 x 42 x 23 mm Weight 0.1 kg Standards EN 60950; EN 61000-6-3, EN 55014-1; EN 61000-6-2, EN 61000-6-1, EN 55014-2; UN/ECE-R10 Herz. 4 Packaging unit Per piece Brand Victron Energy EAN 8719076043485 We would be happy to provide you with more information about this product. 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