Victron Energy smallBMS with pre-alarm (BMS400100000)

By Victron EnergySKU BMS400100000

No reviews · Write the first

Paid link. As an Amazon Associate we earn from qualifying purchases.

Key specs

Units
SKU
BMS400100000
Official datasheet
Sources

Printed as "smallBMS with pre-alarm BMS400100000" at the head of the data sheet's specification table.

Official datasheet: Victron Energy smallBMS with pre-alarm data sheet (PDF) Checked · Earlier document

Location: PDF page 2, specification table heading

Documented

Weight
0.1 kg0.22 lb converted
Official datasheet
Sources

Printed as "Weight 0.1 kg".

Official datasheet: Victron Energy smallBMS with pre-alarm data sheet (PDF) Checked · Earlier document

Location: PDF page 2, Enclosure

Documented

Dimensions
0.1 L
Calculated: Enclosure volume: W × H × D ÷ 1,000,000
W: 42 × H: 106 × D: 23 mmW: 1.7 × H: 4.17 × D: 0.91 in convertedOfficial datasheet
Sources

Printed as "Dimensions (h x w x d) 106 x 42 x 23 mm".

Official datasheet: Victron Energy smallBMS with pre-alarm data sheet (PDF) Checked · Earlier document

Location: PDF page 2, Enclosure

Calculated

Communications
None (no VE.Bus interface, no Bluetooth)
Official datasheet
Sources

The data sheet prints that the smallBMS "does not have a VE.Bus interface"; the overview prints "No" for Bluetooth and data communication in its Small BMS column.

Official datasheet: Victron Energy smallBMS with pre-alarm data sheet (PDF) Checked · Earlier documentOfficial datasheet: BMS Overview Checked · Earlier document

Location: Data sheet PDF page 1, description; overview PDF page 2, comparison table, Bluetooth and Data communication rows

Documented

Enclosure
IP20
Official datasheet
Sources

Printed as "Protection grade IP20".

Official datasheet: Victron Energy smallBMS with pre-alarm data sheet (PDF) Checked · Earlier document

Location: PDF page 2, General

Documented

Battery fuse or breaker (manual)
power supply fuse 0.3A - 2.5A (not supplied)
Official instruction manual
Sources

Printed as "Power supply cable and fuse (not supplied) Recommended fuse size 0.3A - 2.5A, dependent on devices connected to Load disconnect and pre-alarm output" in Victron Energy's smallBMS with pre-alarm manual (rev 02 - 01/2023) (PDF page 12). The manual applies to this model: Manual is specific to the smallBMS with pre-alarm (record: smallBMS with pre-alarm, BMS400100000).

Official instruction manual: Victron Energy: smallBMS with pre-alarm manual (rev 02 - 01/2023) Checked · Earlier document

Location: PDF page 12

Documented

Communication ports (manual)
Load disconnect output; Charge disconnect output; Pre-alarm output; Remote L and Remote H
Official instruction manual
Sources

Printed as "Charge disconnect output Normally high (Vbat – 0.1V) Source current limit: 10mA (short circuit protected) Sink current: 0A (output free floating) Pre-alarm output Normally free floating (low) In case of alarm: output voltage Vbat -0.1V Max output current: 1A (not short circuit protected) Remote on/off: Remote L and Remote H" in Victron Energy's smallBMS with pre-alarm manual (rev 02 - 01/2023) (PDF page 12). The manual applies to this model: Manual is specific to the smallBMS with pre-alarm (record: smallBMS with pre-alarm, BMS400100000).

Official instruction manual: Victron Energy: smallBMS with pre-alarm manual (rev 02 - 01/2023) Checked · Earlier document

Location: PDF page 12

Documented

Operating voltage range
8 to 70 V
Official datasheet
Sources

Printed as "Operating voltage (Vbat) 8" to "70 VDC" in the data sheet's table.

Official datasheet: Victron Energy smallBMS with pre-alarm data sheet (PDF) Checked · Earlier document

Location: PDF page 2, Operating voltage (Vbat)

Documented

Battery chemistry
LiFePO4 (Victron Lithium Battery Smart, 12.8 V or 25.6 V)
Official datasheet
Sources

Printed as "These batteries are Lithium Iron Phosphate (LiFePO4) batteries and are available in 12.8 V or 25.6 V", for Victron Energy Lithium Battery Smart batteries, in system voltages of 12 V, 24 V or 48 V.

Official datasheet: Victron Energy smallBMS with pre-alarm data sheet (PDF) Checked · Earlier document

Location: PDF page 1, description

Documented

1 spec not documented yet: continuous discharge currentHelp fill in ›

All specs11
Weight
0.1 kg0.22 lb converted
Official datasheet
Sources

Printed as "Weight 0.1 kg".

Official datasheet: Victron Energy smallBMS with pre-alarm data sheet (PDF) Checked · Earlier document

Location: PDF page 2, Enclosure

Documented

Dimensions
23 D × 42 W × 106 H mm0.91 D × 1.7 W × 4.17 H in converted
Official datasheet
Sources

Printed as "Dimensions (h x w x d) 106 x 42 x 23 mm".

Official datasheet: Victron Energy smallBMS with pre-alarm data sheet (PDF) Checked · Earlier document

Location: PDF page 2, Enclosure

Documented

Communications
None (no VE.Bus interface, no Bluetooth)
Official datasheet
Sources

The data sheet prints that the smallBMS "does not have a VE.Bus interface"; the overview prints "No" for Bluetooth and data communication in its Small BMS column.

Official datasheet: Victron Energy smallBMS with pre-alarm data sheet (PDF) Checked · Earlier documentOfficial datasheet: BMS Overview Checked · Earlier document

Location: Data sheet PDF page 1, description; overview PDF page 2, comparison table, Bluetooth and Data communication rows

Documented

Enclosure
IP20
Official datasheet
Sources

Printed as "Protection grade IP20".

Official datasheet: Victron Energy smallBMS with pre-alarm data sheet (PDF) Checked · Earlier document

Location: PDF page 2, General

Documented

Battery fuse or breaker (manual)
power supply fuse 0.3A - 2.5A (not supplied)
Official instruction manual
Sources

Printed as "Power supply cable and fuse (not supplied) Recommended fuse size 0.3A - 2.5A, dependent on devices connected to Load disconnect and pre-alarm output" in Victron Energy's smallBMS with pre-alarm manual (rev 02 - 01/2023) (PDF page 12). The manual applies to this model: Manual is specific to the smallBMS with pre-alarm (record: smallBMS with pre-alarm, BMS400100000).

Official instruction manual: Victron Energy: smallBMS with pre-alarm manual (rev 02 - 01/2023) Checked · Earlier document

Location: PDF page 12

Documented

Communication ports (manual)
Load disconnect output; Charge disconnect output; Pre-alarm output; Remote L and Remote H
Official instruction manual
Sources

Printed as "Charge disconnect output Normally high (Vbat – 0.1V) Source current limit: 10mA (short circuit protected) Sink current: 0A (output free floating) Pre-alarm output Normally free floating (low) In case of alarm: output voltage Vbat -0.1V Max output current: 1A (not short circuit protected) Remote on/off: Remote L and Remote H" in Victron Energy's smallBMS with pre-alarm manual (rev 02 - 01/2023) (PDF page 12). The manual applies to this model: Manual is specific to the smallBMS with pre-alarm (record: smallBMS with pre-alarm, BMS400100000).

Official instruction manual: Victron Energy: smallBMS with pre-alarm manual (rev 02 - 01/2023) Checked · Earlier document

Location: PDF page 12

Documented

Operating voltage range
8 to 70 V
Official datasheet
Sources

Printed as "Operating voltage (Vbat) 8" to "70 VDC" in the data sheet's table.

Official datasheet: Victron Energy smallBMS with pre-alarm data sheet (PDF) Checked · Earlier document

Location: PDF page 2, Operating voltage (Vbat)

Documented

Battery chemistry
LiFePO4 (Victron Lithium Battery Smart, 12.8 V or 25.6 V)
Official datasheet
Sources

Printed as "These batteries are Lithium Iron Phosphate (LiFePO4) batteries and are available in 12.8 V or 25.6 V", for Victron Energy Lithium Battery Smart batteries, in system voltages of 12 V, 24 V or 48 V.

Official datasheet: Victron Energy smallBMS with pre-alarm data sheet (PDF) Checked · Earlier document

Location: PDF page 1, description

Documented

Mounting orientation (manual)
preferably on a flat surface
Official instruction manual
Sources

Printed as "Preferably mount the smallBMS on a flat surface." in Victron Energy's smallBMS with pre-alarm manual (rev 02 - 01/2023) (PDF page 11). The manual applies to this model: Manual is specific to the smallBMS with pre-alarm (record: smallBMS with pre-alarm, BMS400100000).

Official instruction manual: Victron Energy: smallBMS with pre-alarm manual (rev 02 - 01/2023) Checked · Earlier document

Location: PDF page 11

Documented

Continuous discharge current
Not documented
Details

Not printed: the smallBMS switches loads and chargers through its outputs (load disconnect source current limit 1A) rather than carrying battery current.

Not documented

Operating temperature
-20 to 50 °C-4 to 122 °F converted
Official datasheet
Sources

Printed as "Operating temperature range -20 to +50 °C".

Official datasheet: Victron Energy smallBMS with pre-alarm data sheet (PDF) Checked · Earlier document

Location: PDF page 2, General

Documented

Published claims and calculations, not independent test results.

Documents

3 on file
  • PDF
    Victron Energy smallBMS with pre-alarm data sheet (PDF)OfficialVictron EnergyOfficial datasheet
    Source details
    Revision
    Not stated
    Revision date
    Not stated

    Archived copy captured on 2026-10-09.

    Location: PDF page 1, description; PDF page 2, specification table

    Retrieved

    Victron Energy's data sheet for the smallBMS with pre-alarm, article BMS400100000, linked from Victron's own smallBMS product page and captured on October 9, 2026. Manufacturer claims, not independent tests; the data sheet carries no revision date.

    Archived copies

    Archived copy of a document published by Victron Energy. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

    Archived backup Revision not recorded · 0.53 MB

    Archived copy, unaltered, kept as a record of what Victron Energy published. Original address: https://www.victronenergy.com/upload/documents/Datasheet-smallBMS-with-pre-alarm-EN-.pdf. Copyright and takedown

    Source first found
    This copy captured
    Archived
    File detailsOriginal source
    Pages
    2

    Embedded dates are file metadata, not independent proof of publication.

    SHA-256: 435f5b92427d74726dac8bc67a24f7bb40fc30dce3d934025555bf1680b049a9

    Open
  • PDF
    Victron Energy: smallBMS with pre-alarm manual (rev 02 - 01/2023)OfficialVictron EnergyOfficial instruction manual
    Source details
    Revision
    Not stated
    Revision date
    Not stated

    Archived copy captured on 2026-10-15.

    Location: Installation instructions

    Retrieved

    Victron Energy's own manual, captured October 15, 2026 with the paced research fetcher (robots.txt read first). Manufacturer instructions, not independent tests.

    Archived copies

    Archived copy of a document published by Victron Energy. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

    Archived backup Revision not recorded · 1.25 MB

    Archived copy, unaltered, kept as a record of what Victron Energy published. Original address: https://www.victronenergy.com/upload/documents/smallBMS_with_pre-alarm/128558-smallBMS_with_pre-alarm-pdf-en.pdf. Copyright and takedown

    Source first found
    This copy captured
    Archived
    File detailsOriginal source
    Pages
    13

    Embedded dates are file metadata, not independent proof of publication.

    SHA-256: 4e72391c13366047f508c8e4c1151646e3a0265aa6f306d883a8ab223be3e1f0

    Open
  • WEB
    SmallBMS with pre-alarm, Victron Energy product page (October 9, 2026 capture)OfficialVictron EnergyOfficial product page
    Source details
    Revision
    Not stated
    Revision date
    Not stated

    Archived copy captured on 2026-10-09.

    Location: Product heading and images; Downloads

    Retrieved

    Victron Energy's own product page for the smallBMS with pre-alarm, captured on October 9, 2026; it links the data sheet and carries the product images. Manufacturer claims, not independent tests.

    Open

Archive and older revisions

Archive and older revisions1

Earlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.

  • PDF
    BMS OverviewOfficialVictron EnergyOfficial datasheet
    Source details
    Revision
    Not stated
    Revision date
    Not stated

    Victron document library entry 8356 (Datasheet).

    Location: Datasheet-BMS-overview-EN.pdf

    Retrieved

    Original manufacturer-hosted PDF preserved byte for byte from the Victron document library, listed by the manufacturer for SKUs BAT512110610, BAT512120610, BAT512116610, BAT512050610, BAT524120610, BAT512132410, BAT524110610, BAT512118610. The revision is whatever Victron published at this URL on the access date; no later revision or independent verification is claimed.

    SHA-256: 78ebc6d7a0d6a96b9010a35a8c0943fa5247af97d6c59f3b8d1ec45219395f55

    Archived copies

    Archived copy of a document published by Victron Energy. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

    Archived backup Revision not recorded · 0.38 MB

    Archived copy, unaltered, kept as a record of what Victron Energy published. Original address: https://www.victronenergy.com/upload/documents/Datasheet-BMS-overview-EN.pdf. Copyright and takedown

    Source first found
    This copy captured
    Archived
    File detailsOriginal source

    Embedded dates are file metadata, not independent proof of publication.

    SHA-256: 78ebc6d7a0d6a96b9010a35a8c0943fa5247af97d6c59f3b8d1ec45219395f55

    Open

Archived documents

Victron Energy smallBMS with pre-alarm data sheet (PDF)

Archived copy of a document published by Victron Energy. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

Archived backup Revision not recorded · 0.53 MB

Archived copy, unaltered, kept as a record of what Victron Energy published. Original address: https://www.victronenergy.com/upload/documents/Datasheet-smallBMS-with-pre-alarm-EN-.pdf. Copyright and takedown

Source first found
This copy captured
Archived
File detailsOriginal source
Pages
2

Embedded dates are file metadata, not independent proof of publication.

SHA-256: 435f5b92427d74726dac8bc67a24f7bb40fc30dce3d934025555bf1680b049a9

BMS Overview

Archived copy of a document published by Victron Energy. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

Archived backup Revision not recorded · 0.38 MB

Archived copy, unaltered, kept as a record of what Victron Energy published. Original address: https://www.victronenergy.com/upload/documents/Datasheet-BMS-overview-EN.pdf. Copyright and takedown

Source first found
This copy captured
Archived
File detailsOriginal source

Embedded dates are file metadata, not independent proof of publication.

SHA-256: 78ebc6d7a0d6a96b9010a35a8c0943fa5247af97d6c59f3b8d1ec45219395f55

Victron Energy: smallBMS with pre-alarm manual (rev 02 - 01/2023)

Archived copy of a document published by Victron Energy. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

Archived backup Revision not recorded · 1.25 MB

Archived copy, unaltered, kept as a record of what Victron Energy published. Original address: https://www.victronenergy.com/upload/documents/smallBMS_with_pre-alarm/128558-smallBMS_with_pre-alarm-pdf-en.pdf. Copyright and takedown

Source first found
This copy captured
Archived
File detailsOriginal source
Pages
13

Embedded dates are file metadata, not independent proof of publication.

SHA-256: 4e72391c13366047f508c8e4c1151646e3a0265aa6f306d883a8ab223be3e1f0

Submit a document

Warranty

No warranty terms on file.

Sellers

Affiliate links below. As an Amazon Associate we earn from qualifying purchases. Affiliate disclosure

Report a seller problem

Price history

No price observations yet.

Chart, listings & data

No price observations yet
Price data
Collected price observations by seller
Checked (UTC)SellerPrice
No visible prices.

Owner reviews

No reviews yet

Own one? A verified review needs a receipt and a serial number photo, and counts 19× in the owner rating.

Write a review

Evidence score

This category has no Evidence score.

Certificates

No certificates on file. Certificate guide

Parts and accessories

No sourced accessories or replacement parts listed yet.

Model history

Model identity

Model
smallBMS with pre-alarm

Manufacturer SKU BMS400100000 · US market

No historical observations recorded yet.

Community discussions

No discussions linked yet. Search DIY Solar Forum

Recalls / legal notices

No recalls or legal notices on file; this is not a complete recall or court search. All notices · Report a notice

Something wrong that is not one of the values above?

Prices · price basis. * Calculated; estimates labeled. Value needs confirmation; select it for the reason.