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- Product Datasheet
- Manual
- Warranty
- Helios Battery Accessory Purchasing Guide
- UL1973 Certification
- UL9540A Certification
Powerful, Scalable & Safe Residential Energy Storage System
Upgrade your home or off-grid energy solution with the HELIOS ESS 16kWh Lithium Iron Phosphate Battery—a top-tier off-grid lithium battery for home use. Engineered for whole-home solar battery backup, microgrid energy systems, and residential battery storage, this high-capacity solution is perfect for solar energy storage for microgrids and solar power storage for remote cabins.
With 75+ years of battery innovation, the HELIOS ESS delivers unmatched performance, safety, and reliability—even in the harshest climates.
Key Features & Benefits
Powerful Home Battery Backup
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Delivers 10 kW continuous and 19 kW peak power (10 seconds) – ideal for whole-home battery backup systems.
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Exceptional 93 MWh lifetime energy throughput – built for continuous power supply in off-grid homes.
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Features an advanced 4th-generation Battery Management System (BMS) for smart and efficient energy control.
All-Climate Weatherproof Design
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Durable IP65-rated weatherproof enclosure perfect for outdoor energy storage in all weather conditions.
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Wide temperature range from -25°C to 55°C (-13°F to 131°F).
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Integrated self-heating battery system ensures consistent performance in cold climates—ideal for solar battery for cold environments.
Enhanced Safety & Protection
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Equipped with dual fire arrestors and an emergency stop switch for advanced safety.
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Comprehensive protection from overvoltage, overcurrent, and overheating.
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Fully compatible with Rapid Shutdown (RSD) systems for quick emergency response.
Easy Integration with Solar & Hybrid Inverters
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Compatible with most hybrid solar inverters and off-grid inverter systems.
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Features closed-loop CAN communication for real-time inverter integration.
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Optional conduit box for Sol-Ark 15K inverter compatibility makes setup even easier.
Expandable & Scalable Energy Storage
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Expandable from 16 kWh to 48 kWh via battery-to-battery parallel connection.
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Scales up to 579.6 kWh (36 modules) with closed-loop inverter communication—a perfect modular energy storage system.
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Innovative quick-connect wall-mount design enables fast, hassle-free installation.
Ideal For:
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Residential solar energy storage systems
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Off-grid cabins or remote off-grid homes
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Whole-home backup during power outages
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Commercial hybrid solar and microgrid setups
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Expandable home battery storage for solar systems
Take control of your energy with the HELIOS ESS – your trusted partner in high-capacity solar energy storage, built for performance, safety, and long-term value. Whether you need a solar battery backup for home, a weatherproof outdoor battery storage unit, or a solar power storage solution for off-grid living, HELIOS ESS is the smart choice.