Dyness HV9637S

Verified distributor global (EN documentation) verified Sept. 22, 2026

Unresolved safety-relevant conflict
Two sources give different figures for a value on this product and nobody has resolved it. The specifications below are shown as recorded, but this product must not be treated as verified for engineering purposes until the conflict is closed.

Dyness HV9637S — PRODUCT PHOTO · www.shop-rebor.com

Identity

category	batteries
ean	—
generation	—
hardware_revision	—
legacy_name	—
manufacturer	Dyness (Dyness Digital Energy Technology Co., LTD) disputed
market_version	EN
model	HV9637S
mpn	HV9637S
product_family	Dyness Tower S3 (TS7-TS21) battery module
product_status	—
product_status_detail	current
product_status_evidence	Named as the battery module in the Tower S3 ESS User Manual Table 2-2 and stocked by EU distributors (GVOLT, 7SUN) as of 2026-09-02.
region	global (EN documentation)
release_year	—
sku	—
subcategory	high-voltage battery MODULE for a stacked tower system (96 V class)
variant_note	MODULE-level record. 96 V / 37 Ah / 3.552 kWh (distributors round to 3.55 kWh), usable 3.37 kWh per GVOLT. Same electrical class as HV9637 but a DIFFERENT part number, a 108 V (not 109.5 V) charge voltage, a 22 A charge peak instead of a 37 A charge max, a 40 kg (not 41 kg) weight and a 0~55 C module operating range.

Electrical

cell_chemistry	LiFePO4 ('Li-ion (LFP)')
cell_type	—
continuous_charge_current_a	18.5
continuous_discharge_current_a	18.5
continuous_power_kw	—
cycle_life	6000
depth_of_discharge_pct	95
max_charge_current_a	—
max_charge_power_kw	—
max_discharge_current_a	37
max_discharge_power_kw	—
max_parallel_units	—
max_series_units	6
modules_per_tower_max	6
modules_per_tower_min	2
nominal_capacity_ah	37
nominal_energy_kwh	3.552
nominal_voltage_v	96
official_manual_url	https://www.elektrosmart.ro/wp-content/uploads/2025/11/Manual-de-instalare-Dyness-Tower-S3.pdf Tower S3 ESS User Manual - distributor mirror on elektrosmart.ro
official_product_url	https://www.dyness.com/towers3-high-voltage-storage-battery-for-household-use Tower S3 ESS User Manual - distributor mirror on elektrosmart.ro
operating_voltage_max_v	108
operating_voltage_min_v	84
parallel_supported	False
peak_charge_current_a	22
peak_discharge_current_a	—
peak_power_kw	—
round_trip_efficiency_pct	—
series_supported	True
system_energy_max_kwh	21.31
system_energy_min_kwh	7.1
usable_energy_kwh	3.37

Physical / mechanical

color	—
cooling_method	—
depth_mm	504
enclosure_material	—
height_mm	240
installation_notes	Manual prints '(W x D x H, mm) 380x504x240' - same apparent W/D transposition as the HV9637 module table. The 7SUN listing quotes '504/380/720' mm, which is the TS7 SYSTEM footprint, not the module; it was not used.
ip_rating	IP54
mounting_type	stacked module inside the Tower S3 enclosure
rack_units	—
shipping_weight_kg	—
weight_kg	40
width_mm	380

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 (IP54)
max_altitude_m	—
operating_humidity	—
operating_temperature_charge_max_c	50
operating_temperature_charge_min_c	0
operating_temperature_discharge_max_c	50
operating_temperature_discharge_min_c	-10
operating_temperature_max_c	55
operating_temperature_min_c	0
pollution_degree	II
storage_humidity	<65% RH
storage_temperature_max_c	45
storage_temperature_min_c	5

Interfaces & connectors

bluetooth	—
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	—
ethernet	—
modbus_rtu	—
modbus_tcp	—
protocol_notes	Module table row 'Communication mode' = 'CAN/RS485'
rs232	—
rs485	True
usb	—
wifi	—

Protection

fire_suppression	—
notes	—

Certifications

emc_certifications	CE-EMC (7SUN also lists CE-RED)
safety_certifications	IEC62619 / IEC63056 / IEC62477 / IEC62040
standards	CE-EMC / CE-RED / IEC62040 / IEC62619 / IEC62477 / IEC63056 / UN38.3 (7SUN); GVOLT lists 'CE-EMC, IEC62040, IEC62619, IEC62477, IEC63056, UN38.3'
transport_certifications	UN38.3

Warranty & service

conditions	—
summary	7SUN and GVOLT distributor listings both quote a 10-year warranty.
years	10

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

distributor_listing 7SUN distributor listing: Battery module - DYNESS - HV9637S - S3 - 3.55 kWh - HV rev UNKNOWN

distributor_listing GVOLT B2B distributor listing: Dyness HV9637S S3 HV battery 3.55kWh rev UNKNOWN

product_page Dyness Tower S3 high-voltage residential battery (series page, covers TS7-TS21)

product_page Dyness Tower S3 official product page (HTML, dyness.com without www) rev UNKNOWN

user_manual Tower S3 ESS User Manual - distributor mirror on elektrosmart.ro rev UNKNOWN

Recorded conflicts

environment.storage_temperature_range_c Review required

5 to 45 C — Tower S3 ESS User Manual, storage chapter

-10 C to 50 C — GVOLT B2B listing, 'Storage Temperature'

identity.manufacturer Review required