Fully Liquid Cooling C&l Battery System

HoyUltra 2 series (Model : HESS-261-2h) is a next-generation fullyliquid cooling C&l battery system by Hoymiles, Its maximum round-trip efficiency can reach 90.3%. Equipped with a 3-level, 6-type safetyprotection mechanism, it ensures 24/7 safe operation. The edge EMSand local APP system enable intelligent operation and maintenance.The battery and PCS feature a fully liquid cooling design, allowingfor full - capacity operation without derating even at 50°C. The corecomponents boasting an IP55 protection rating and noise levels as lowas 60dB.

Highlights:

Safe and reliable
Ensuring sustainable power supply
High investment returns
Reduce costs and improve efficiency
Implemented independently or collaboratively
Zero capital investment from clients
Full investment, construction and operation by provider

Multi-scene applications

Coordinated contral of Photovoltaic, Energy Storage andCharging
Fully liquid cooling design for battery and PCS, enablingoperation without derating at 50%C
IP55 protection level for core components, waterproof anddustproof
Noise levels as low as 60dB, adaptable to supermarkets,hotels,and communities
Operating with 100% three-phase imbalance under load atOff-Grid

Three-level and six-type safaty protection

Efficient Energy Management

Technical Specifications

HoyUltra 2Series

Model	HESS-261-2h
DC Side
Cell Type	LFP3.2V/314 Ah
Pack Configuration	1P52S/52.25 kWh
System Configuration	1P260S
Battery Voltage Range	728 – 936 VDC
Norrinal Battery Energy	261kWh
Temperature Detection	Battery cell+Module+Positive and Negative terminals