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Great Power Max-20HC-3440

Manufacturer documented GLOBAL verified Sept. 25, 2026

Identity

category commercial_ess
manufacturer Great Power
model Max-20HC-3440
product_status active
region GLOBAL
variant —

Electrical

cell_capacity_ah 280
Great Power Corporate & Energy Storage Product Brochure (product specification tables)
cell_configuration 1P384S*(10 or 9 or 8)
Great Power Corporate & Energy Storage Product Brochure (product specification tables)
chemistry LFP
Great Power Corporate & Energy Storage Product Brochure (product specification tables)
continuous_discharge_current_a 100.0
cooling liquid disputed
Great Power — Large-Scale Energy Storage System
cycle_life 6000
dc_voltage_max_v 1500
Great Power Corporate & Energy Storage Product Brochure (product specification tables)
dc_voltage_min_v 900
Great Power Corporate & Energy Storage Product Brochure (product specification tables)
depth_of_discharge_pct 95.0
design_life_years 15
Great Power — Large-Scale Energy Storage System
functional_safety_class B
Great Power Corporate & Energy Storage Product Brochure (product specification tables)
max_charge_current_a 80.0
max_charge_current_spec 173 A*(10 or 9 or 8)
Great Power Corporate & Energy Storage Product Brochure (product specification tables)
max_discharge_current_a 100.0
max_discharge_current_spec 173 A*(10 or 9 or 8)
Great Power Corporate & Energy Storage Product Brochure (product specification tables)
nominal_capacity_ah 100.0
nominal_energy_kwh 3440
Great Power Corporate & Energy Storage Product Brochure (product specification tables)
nominal_voltage_v 51.2
official_product_url https://www.greatpower.net/en/product/largeenergystorage.html
Great Power — Large-Scale Energy Storage System — inventory record source_url
operating_voltage_max_v 57.6
operating_voltage_min_v 44.8
phase_count 3
rated_power_spec 180kW*10/1.7MW
Great Power Corporate & Energy Storage Product Brochure (product specification tables)
round_trip_efficiency_dc_percent > 95
Great Power — Large-Scale Energy Storage System
topology container
Great Power — Large-Scale Energy Storage System

Physical / mechanical

dimensions_mm W6058*D2438*H2896
Great Power Corporate & Energy Storage Product Brochure (product specification tables)
mounting 19-inch Rack / Wall-mount

Environment

charging_temperature_max_c 45
Great Power Corporate & Energy Storage Product Brochure (product specification tables)
charging_temperature_min_c 0
Great Power Corporate & Energy Storage Product Brochure (product specification tables)
discharging_temperature_max_c 50
Great Power Corporate & Energy Storage Product Brochure (product specification tables)
discharging_temperature_min_c -20
Great Power Corporate & Energy Storage Product Brochure (product specification tables)
ip_rating IP54
Great Power Corporate & Energy Storage Product Brochure (product specification tables)
operating_temperature_max_c 60.0
operating_temperature_min_c -25.0

Interfaces & connectors

communication CAN, RS485
communications CAN, 485, TCP/IP
Great Power Corporate & Energy Storage Product Brochure (product specification tables)

Certifications

certifications ['UL9540A']
Great Power — Large-Scale Energy Storage System

Warranty & service

warranty_years 10

Documents

datasheet Great Power Corporate & Energy Storage Product Brochure (product specification tables)
product_page Great Power — Large-Scale Energy Storage System

Recorded conflicts

electrical.cooling Review required
liquid — stored value
Liquid Cooling — Max-20HC-3440 | Cooling Method Liquid Cooling
Detected during import deep-enrich-2026-09-batch07

Additional documented parameters

Recorded verbatim from the source; no schema field exists for these yet.

builder_completenesspartial
region_notesListed on Great Power's English (global) product site. Great Power also runs a Chinese-language catalogue whose model list differs; see conflicts.