Dyness HV9640
Verified distributor global (EN documentation) verified Sept. 2, 2026
Identity
| category | batteries |
| ean | UNKNOWN |
| generation | UNKNOWN |
| hardware_revision | UNKNOWN |
| legacy_name | UNKNOWN |
| manufacturer | Dyness (Dyness Digital Energy Technology Co., LTD) |
| market_version | EN |
| model | HV9640 |
| mpn | HV9640 |
| product_family | Dyness Tower Pro (TP7-TP23) battery module |
| product_status | UNKNOWN |
| product_status_detail | current |
| product_status_evidence | Named on the live official Tower Pro product page ('Battery module model: HV9640') accessed 2026-09-02. |
| region | global (EN documentation) |
| release_year | UNKNOWN |
| sku | UNKNOWN |
| subcategory | high-voltage battery MODULE for a stacked tower system (96 V class) |
| variant_note | MODULE-level record. 96 V / 40 Ah / 3.84 kWh per module, 1C rated. Do NOT confuse with the Tower Pro system energy (7.68-23.04 kWh). Not interchangeable with the Tower HV9637 (37 Ah) or the Tower S3 HV9637S module. |
Electrical
| cell_chemistry | LiFePO4 ('Li-ion (LFP)') |
| cell_type | UNKNOWN |
| continuous_charge_current_a | 20 |
| continuous_discharge_current_a | 20 |
| continuous_power_kw | UNKNOWN |
| cycle_life | 8000 |
| depth_of_discharge_pct | 95 |
| max_charge_current_a | 40 |
| max_charge_power_kw | UNKNOWN |
| max_discharge_current_a | 40 |
| max_discharge_power_kw | UNKNOWN |
| max_parallel_units | UNKNOWN |
| max_series_units | 6 |
| modules_per_tower_max | 6 |
| modules_per_tower_min | 2 |
| nominal_capacity_ah | 40 |
| nominal_energy_kwh | 3.84 |
| nominal_voltage_v | 96 |
| operating_voltage_max_v | 109.5 |
| operating_voltage_min_v | 84 |
| parallel_supported | False |
| peak_charge_current_a | UNKNOWN |
| peak_discharge_current_a | UNKNOWN |
| peak_power_kw | UNKNOWN |
| round_trip_efficiency_pct | UNKNOWN |
| series_supported | True |
| system_energy_max_kwh | 23.04 |
| system_energy_min_kwh | 7.68 |
| usable_energy_kwh | UNKNOWN |
Physical / mechanical
| color | UNKNOWN |
| cooling_method | UNKNOWN |
| depth_mm | 310 |
| enclosure_material | UNKNOWN |
| height_mm | 241 |
| installation_notes | Manual prints '(W x D x H, mm) 587x310x241', consistent with the Tower Pro system footprint of 587 x 310 mm and a 221 mm enclosure step per module. |
| ip_rating | IP55 |
| mounting_type | stacked module inside the Tower Pro enclosure |
| rack_units | UNKNOWN |
| shipping_weight_kg | UNKNOWN |
| weight_kg | 34.5 |
| width_mm | 587 |
Installation
| indoor_outdoor | installed inside the tower enclosure |
| notes | Battery MODULE only. Never usable stand-alone: it must be stacked under a Dyness BDU control unit on a base. 2-6 modules per tower. |
| parallel_hub_required | False |
Environment
| indoor_outdoor | inside the tower enclosure (IP55) |
| max_altitude_m | UNKNOWN |
| operating_humidity | UNKNOWN |
| operating_temperature_charge_max_c | 55 |
| operating_temperature_charge_min_c | 0 |
| operating_temperature_discharge_max_c | 55 |
| operating_temperature_discharge_min_c | -10 |
| operating_temperature_max_c | 50 |
| operating_temperature_min_c | 0 |
| pollution_degree | II |
| storage_humidity | UNKNOWN |
| storage_temperature_max_c | UNKNOWN |
| storage_temperature_min_c | UNKNOWN |
Interfaces & connectors
| bluetooth | UNKNOWN |
| can | True |
| communication_ports | 9-pin composite connector (plug + socket) carrying module DC output plus SWAKE / SCANSG / SCANL / SCANH / 24V+ / 24V- / SCANIN / SCANOUT |
| dry_contact | UNKNOWN |
| ethernet | UNKNOWN |
| modbus_rtu | UNKNOWN |
| modbus_tcp | UNKNOWN |
| protocol_notes | Module table row 'Communication mode' = 'CAN/RS485' |
| rs232 | UNKNOWN |
| rs485 | True |
| usb | UNKNOWN |
| wifi | UNKNOWN |
Protection
| fire_suppression | UNKNOWN |
| notes | UNKNOWN |
Certifications
| emc_certifications | CE-EMC |
| safety_certifications | IEC62619 / IEC63056 / IEC62477 / IEC62040 / VDE2510-50 |
| standards | IEC62619 / IEC63056 / IEC62477 / IEC62040 / CE-EMC / VDE2510-50 (7SUN listing); the Tower Pro system datasheet adds UN38.3 and ROHS |
| transport_certifications | UN38.3 (system datasheet) |
Warranty & service
| conditions | UNKNOWN |
| summary | 7SUN distributor listing: 'Warranty: 10 years'. |
| years | 10 |
Documents
compatibility_list
{# Located but never retrieved: listed, but deliberately not linked, and it
backs no stored value. #}
Dyness Tower Pro Series Compatibility List 2025-10-16 - official — located, not retrieved
rev 20251016
datasheet
{# Located but never retrieved: listed, but deliberately not linked, and it
backs no stored value. #}
Dyness Tower Pro Datasheet EN 2025-10-30 (DynessTowerProDatasheetEN20251030.pdf) - official, linked from the Tower Pro product page — located, not retrieved
rev 2025-10-30
datasheet
Dyness Tower Pro datasheet-EN V1.0-20240520 - distributor mirror on zuidwestsolar.nl
rev V1.0-20240520
datasheet
Dyness Tower Pro datasheet-EN V1.0-20240520 - second distributor mirror on rayshine-solar.com (corroborating copy)
rev V1.0-20240520
distributor_listing
7SUN distributor listing: Battery module - DYNESS - HV9640 - PRO - 3.84 kWh - HV
rev UNKNOWN
distributor_listing
Etronixcenter distributor listing: Dyness Tower PRO Base + BDU (ref. DY-002)
rev UNKNOWN
distributor_listing
Solartraders distributor listing: Dyness Tower Pro BDU Battery Management System
rev UNKNOWN
Recorded conflicts
physical.weight_kg Review required
34.5 — Tower Pro User Manual Table 2-2 'Weight [kg]'
41.44 — 7SUN distributor listing 'Battery module - DYNESS - HV9640 - PRO - 3.84 kWh - HV', Weight
Additional documented parameters
Recorded verbatim from the source; no schema field exists for these yet.
| 7SUN distributor internal SKU / EAN | SKU F12B11, EAN 2010000033920 (a 20-prefix restricted-circulation code, i.e. a distributor internal barcode, not a Dyness GTIN) |
| 7SUN listed price | 770.77 EUR gross |
| Ambient temperature [C] (module table) | 0 to +50 |
| Battery cell capacity [Ah] | 40 Ah |
| Battery cell capacity [Wh] | 128 Wh |
| Battery cell voltage [V/DC] | 3.2 V |
| Module charge/discharge current normal [A] | 40 A (manual prints standard 20 / normal 40 / max 40, i.e. 'normal' equals 'max' for this module) |
| Number of battery module cells | 30 |
| Number of cells in series | 30 |
| Pollution degree | II |
| identity.product_status | current |
| manufacturer_legal_entity_as_printed | Dyness Digital Energy Technology Co., LTD |