Knowledge Base ›
Battery Control Units
Dyness Tower S3 BDU control unit
Verified distributor
global (EN documentation)
verified Sept. 2, 2026
Identity
| category |
battery_control_units
|
| ean |
UNKNOWN
|
| generation |
UNKNOWN
|
| hardware_revision |
UNKNOWN
|
| legacy_name |
UNKNOWN
|
| manufacturer |
Dyness (Dyness Digital Energy Technology Co., LTD)
|
| market_version |
EN
|
| model |
Tower S3 BDU control unit
|
| mpn |
UNKNOWN
|
| product_family |
Dyness Tower S3 (TS7-TS21) system components
|
| product_status |
UNKNOWN
|
| product_status_detail |
current
|
| product_status_evidence |
Documented as a component of the Tower S3 system in the Tower S3 ESS User Manual; the Tower S3 series has a live official product page accessed 2026-09-02.
|
| region |
global (EN documentation)
|
| release_year |
UNKNOWN
|
| sku |
UNKNOWN
|
| subcategory |
battery control unit / BDU for a stacked high-voltage battery tower (stack BMS + DC breaker + external DC terminals + inverter communication port)
|
| variant_note |
CONTROL UNIT only - no stored energy. The fetched Tower S3 user manual documents it as a distinct component (interface definitions in Table 2-5, inverter port pinout in Table 2-7) but prints NO model designation, weight, dimensions or separate electrical table for it. A distributor product titled 'DYNESS Control Module Tower S3 SBDU+BASE' was seen in search results but no page for it was successfully fetched, so 'SBDU' is NOT recorded as the part name.
|
Electrical
| cell_chemistry |
UNKNOWN
|
| cell_type |
UNKNOWN
|
| continuous_charge_current_a |
18.5
|
| continuous_discharge_current_a |
18.5
|
| continuous_power_kw |
UNKNOWN
|
| cycle_life |
UNKNOWN
|
| depth_of_discharge_pct |
UNKNOWN
|
| max_charge_current_a |
UNKNOWN
|
| max_charge_power_kw |
UNKNOWN
|
| max_discharge_current_a |
37
|
| max_discharge_power_kw |
UNKNOWN
|
| max_parallel_units |
12
|
| max_series_units |
6
|
| modules_per_tower_max |
6
|
| modules_per_tower_min |
2
|
| nominal_capacity_ah |
UNKNOWN
|
| nominal_energy_kwh |
NOT APPLICABLE - control unit, stores no energy
|
| nominal_voltage_v |
UNKNOWN
|
| operating_voltage_max_v |
648
|
| operating_voltage_min_v |
168
|
| parallel_supported |
True
|
| peak_charge_current_a |
22
|
| peak_discharge_current_a |
UNKNOWN
|
| peak_power_kw |
UNKNOWN
|
| round_trip_efficiency_pct |
UNKNOWN
|
| series_supported |
True
|
| system_energy_max_kwh |
21.31
|
| system_energy_min_kwh |
7.1
|
| usable_energy_kwh |
NOT APPLICABLE - control unit, stores no energy
|
Physical / mechanical
| color |
UNKNOWN
|
| cooling_method |
UNKNOWN
|
| depth_mm |
UNKNOWN
|
| enclosure_material |
UNKNOWN
|
| height_mm |
UNKNOWN
|
| installation_notes |
No separate dimensions or weight are published in any document fetched for this batch.
|
| ip_rating |
IP54 (tower system level)
|
| mounting_type |
mounted on top of the stacked HV9637S modules
|
| rack_units |
UNKNOWN
|
| shipping_weight_kg |
UNKNOWN
|
| weight_kg |
UNKNOWN
|
| width_mm |
UNKNOWN
|
Installation
| indoor_outdoor |
installed at the top of the tower stack, inside the tower enclosure
|
| notes |
Mandatory: exactly one control unit per tower, plus a base at the bottom of the stack. It stores no energy - all energy figures belong to the battery modules and to the assembled tower system.
|
| parallel_hub_required |
False
|
Environment
| indoor_outdoor |
inside the tower enclosure (IP54)
|
| max_altitude_m |
UNKNOWN
|
| operating_humidity |
UNKNOWN
|
| operating_temperature_charge_max_c |
UNKNOWN
|
| operating_temperature_charge_min_c |
UNKNOWN
|
| operating_temperature_discharge_max_c |
UNKNOWN
|
| operating_temperature_discharge_min_c |
UNKNOWN
|
| operating_temperature_max_c |
UNKNOWN
|
| operating_temperature_min_c |
UNKNOWN
|
| pollution_degree |
UNKNOWN
|
| storage_humidity |
UNKNOWN
|
| storage_temperature_max_c |
UNKNOWN
|
| storage_temperature_min_c |
UNKNOWN
|
Interfaces & connectors
| bluetooth |
UNKNOWN
|
| can |
True
|
| communication_ports |
'Inverter CAN/RS485 RJ45' port (manual Table 2-7 pin definitions); 'Parallel 1#' and 'Parallel 2#' RJ45 for multi-cluster
|
| dry_contact |
UNKNOWN
|
| ethernet |
UNKNOWN
|
| modbus_rtu |
UNKNOWN
|
| modbus_tcp |
UNKNOWN
|
| protocol_notes |
Manual Table 2-7 gives the inverter RJ45 pin definitions; no baud rate or protocol identifier is printed.
|
| rs232 |
UNKNOWN
|
| rs485 |
True
|
| usb |
UNKNOWN
|
| wifi |
UNKNOWN
|
Protection
| fire_suppression |
UNKNOWN
|
| notes |
UNKNOWN
|
| overcurrent |
UNKNOWN
|
Certifications
| emc_certifications |
CE-EMC
|
| safety_certifications |
IEC62619 / IEC63056 / IEC62477 / IEC62040
|
| standards |
CE-EMC / CE-RED / IEC62040 / IEC62619 / IEC62477 / IEC63056 / UN38.3 (quoted at Tower S3 module/system level; nothing is published for the control unit alone)
|
| transport_certifications |
UN38.3
|
Warranty & service
| conditions |
UNKNOWN
|
| summary |
No warranty is published for the Tower S3 control unit in any document fetched for this batch.
|
| years |
UNKNOWN
|
Documents
compatibility_list
{# Located but never retrieved: listed, but deliberately not linked, and it
backs no stored value. #}
Dyness Tower S3 Series Compatibility List 2025-12-08 - official — located, not retrieved
rev 20251208
datasheet
{# Located but never retrieved: listed, but deliberately not linked, and it
backs no stored value. #}
Dyness Tower S3 Datasheet EN 2025-07-29 (TowerS3DatasheetEN20250729.pdf) - official, linked from the Tower S3 product page — located, not retrieved
rev 2025-07-29
Additional documented parameters
Recorded verbatim from the source; no schema field exists for these yet.
| Distributor product title seen in a web search result only (page NOT fetched) | 'DYNESS Control Module Tower S3 SBDU+BASE' (kotly.com, ecosmart.hu) - the fetched kotly.com page did not contain the product, so this string backs nothing and 'SBDU' is not recorded as the part name |
| identity.product_status | current |
| manufacturer_legal_entity_as_printed | Dyness Digital Energy Technology Co., LTD |
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