Knowledge Base ›
Battery Management Systems
Victron Energy smallBMS with pre-alarm
Official manufacturer
global
verified Sept. 2, 2026
Identity
| category |
battery_management_systems
|
| manufacturer |
Victron Energy B.V.
|
| model |
smallBMS with pre-alarm
|
| product_family |
smallBMS
|
| product_status |
active
|
| region |
global
|
| sku |
BMS400100000
|
Electrical
| charge_disconnect_output |
Normally high (Vbat - 0.6 V), source current limit: 10 mA
|
| current_consumption_low_cell_voltage |
1.2 mA
|
| current_consumption_remote_off |
1.2 mA
|
| current_consumption_remote_on |
2.2 mA
|
| load_disconnect_output |
Normally high (Vbat - 0.1 V), source current limit: 1 A
|
| operating_voltage_range_vdc |
8 - 70 VDC
|
| pre_alarm_output |
Normally free floating; maximum output current: 1 A
|
| supported_system_voltages_v |
12, 24 or 48 V
|
Physical / mechanical
| depth_mm |
23
|
| dimensions_h_w_d_mm |
106 x 42 x 23
|
| enclosure_material |
ABS, matt black
|
| height_mm |
106
|
| weight_kg |
0.1
|
| width_mm |
42
|
Installation
| max_batteries_supported |
20
|
| max_energy_storage |
84 kWh in a 12 V system and up to 102 kWh in a 24 V and 48 V system
|
| series_parallel |
12 V, 24 V or 48 V via series/parallel configuration; maximum 20 batteries per system
|
| supported_battery_types |
Victron Energy Lithium Battery Smart batteries (LiFePO4, 12,8 V or 25,6 V)
|
| typical_application |
Small systems without inverter/chargers
|
Environment
| operating_temperature |
-20 to +50 °C
|
| protection_class_ip |
IP20
|
Interfaces & connectors
| bluetooth |
UNKNOWN
|
| bms_battery_connector |
Victron BMS cable chain
|
| remote_on_off |
Yes (remote on input)
|
| ve_bus |
No - this BMS does not control inverter/chargers over VE.Bus
|
| ve_can |
UNKNOWN
|
| ve_direct |
UNKNOWN
|
Protection
| charge_disconnect |
Charge disconnect output, source current limit 10 mA
|
| load_disconnect |
Load disconnect output, source current limit 1 A
|
| pre_alarm |
Pre-alarm output, maximum output current 1 A (normally free floating)
|
Additional documented parameters
Recorded verbatim from the source; no schema field exists for these yet.
| Material | ABS, matt black |
| Maximum Energy Storage | 84 kWh in a 12 V system and up to 102 kWh in a 24 V and 48 V system |
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