Sport Utility Battery for Every Scale

Cold SUB’s modular LFP architecture powers homes and small businesses with reliable, efficient energy storage—delivering seamless backup, peak shaving and intelligent grid interaction.

Engineered with fire-resistant LFP cells and multi-level protection.
 Certified for UL9540A at the cell, module, and system level.

Specifications

Cold SUB - Residential Battery System Specifications

Feature

H25

H40

Device Capacity

25.7 kWh

41.5 kWh

Running Capacity

25 kWh

40 kWh

Required Output Energy

10 kW

10 kW

Internal Battery Voltage

48 – 54.4 V dc

48 – 54.4 V dc

Running Efficiency

>88%

>95%

Power Factor

0.8 Leading ~ 0.8 Lagging

0.8 Leading ~ 0.8 Lagging

Dimensions (W×H×D)

860 mm × 1300 mm × 280 mm

860 mm × 1750 mm × 280 mm

Battery Module Protection

IP65

IP65

Other Components Protection

IP54

IP54

AC Output Specification

120V/240V Split Phase

120V/240V Split Phase

Frequency

50Hz / 60Hz

50Hz / 60Hz

Use Cases

Residential solar energy storage

Backup power for homes and small offices

Seamless integration into rooftop solar or hybrid systems

System Integration

Compatible with Cold Electric EMS for load optimization and energy monitoring

VPP-ready for trading excess energy in local or wholesale markets

Remote diagnostics and intelligent dispatch via cloud-based control

How does it work

Battery Deployment, Simplified

Our streamlined four-step process ensures your Cold SUB is up and running quickly—and performing at peak efficiency.

01

Assess

No extra cost, our engineers survey your site’s load profile, backup needs and mounting options to size your Cold SUB system.

02

Plan

We deliver a custom deployment plan covering module count, placement, electrical interconnection and EMS integration.

03

Install

Certified technicians handle delivery, mounting, wiring and commissioning—so you get seamless, code-compliant startup.

04

Manage

Through the Cold Electric EMS portal you get 24/7 monitoring, automated health checks, firmware updates and dedicated support.

Support

FAQs

Everything you need to know about the product and billing. Can’t find the answer you’re looking for? Please Contact Us

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Discover Cold Electric’s Other Product Range

Flexible, safety-first battery systems tailored for homes, businesses, and grid-scale deployments.

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Commercial-grade energy module

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Flexible Models with High Power Output

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Long-Lasting & Efficient Performance

Delivers over 6,000 charge cycles and greater than 94% round-trip  efficiency.

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High-capacity industrial-grade system

Massive Capacity for Grid-Scale Needs

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Modular Cabinet-Based Architecture

Flexible model lineup supports tailored deployment and easy scaling.

Certified Fire-Safe by Design

Cold Electric's products are UL9540A certified at the cell, module, and unit level to be fire safe

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Cold OG2

High-capacity grid-scale & commercial system

420 kWh Capacity

Delivers 200 kW peak output for campus, industrial or utility-scale applications.

Single-Rack Modular Architecture

Plug-and-play design supports up to four OG2 units in parallel for 1.6 MWh of flexible storage.

Advanced Safety & Thermal Management

IP65-rated enclosure, active cooling and UL 9540A / UL 1973 / IEC 62619 certifications ensure fire-safe, reliable operation.

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