Description
Discover Energy 16.1 kWh Outdoor Lithium Battery
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Discover HELIOS ESS Battery 52-48-16000
The Discover Energy Systems HELIOS ESS 52-48-16000 is a 16.1 kWh lithium iron phosphate (LiFePO4) battery for residential solar energy storage, off-grid power and home battery backup. It provides 16,080 Wh of nominal energy capacity at 51.2V, with a 314 Ah rating.
The outdoor-rated cabinet combines an IP65 enclosure, built-in battery heating and an integrated battery management system. HELIOS ESS works with supported hybrid and off-grid inverters, with closed-loop CAN communication for compatible systems.
Key Benefits
16.1 kWh in One Battery
A single HELIOS ESS battery provides substantial storage capacity for a home backup or off-grid solar system. Actual backup duration depends on connected loads, battery settings and system efficiency.
Outdoor-Rated Cabinet
The IP65 enclosure protects against dust and water ingress. Built-in heating supports cold-weather operation within the manufacturer’s installation and operating requirements.
Integrated Battery Protection
The battery management system provides overvoltage, overcurrent and thermal protection.
Expandable Energy Storage
Parallel installations allow additional batteries to be added as storage needs grow. Required wiring, accessories and communication equipment depend on the number of batteries and inverter configuration.
Ideal Applications
- Residential solar battery storage
- Home backup power with a compatible inverter
- Off-grid cabins and properties
- Critical-load backup systems
- Light commercial energy storage
- Microgrid applications
Technical Specifications
| Specification | Detail |
|---|---|
| Manufacturer | Discover Energy Systems |
| Product Series | HELIOS ESS |
| Model / MPN | 52-48-16000 |
| Nominal Energy | 16,080 Wh (16.08 kWh, approximately 16.1 kWh) |
| Nominal Voltage | 51.2V, for compatible 48V-class battery systems |
| Nominal Capacity | 314 Ah |
| Battery Chemistry | Lithium Iron Phosphate (LiFePO4) |
| Maximum Continuous Charge Current | 200A, subject to manufacturer operating conditions |
| Maximum Continuous Discharge Current | 200A, subject to manufacturer operating conditions |
| Enclosure Rating | IP65 |
| Battery Weight | 136 kg (299.83 lb) |
| Communication | Closed-loop CAN with supported inverters |
| Heating | Built-in internal heating |
View the Discover HELIOS ESS installation and operation manual
Discover HELIOS ESS Battery Questions
Is this a 48V or 51.2V battery?
The HELIOS ESS has a nominal voltage of 51.2V and is used with compatible 48V-class inverter systems. Confirm the inverter’s supported battery voltage range and communication requirements before ordering.
Can the HELIOS ESS battery be installed outdoors?
Yes. Its IP65 enclosure is rated for outdoor use when installed according to Discover’s requirements. Installation location, mounting and clearances must follow the manufacturer manual and local requirements.
How long will a 16.1 kWh battery power my home?
Runtime depends on how much power your appliances use. As a simple example, 16.08 kWh divided by a constant 1 kW load equals about 16 hours before accounting for reserve settings, inverter losses and other operating limits. Whole-home backup sizing also needs to account for peak loads and inverter output.
Which inverters work with the Discover HELIOS ESS?
Can I add more batteries later?
Yes. HELIOS ESS supports parallel battery configurations. Expansion must follow Discover’s wiring and communication requirements and the limits of your inverter system.
Warranty
Discover provides a five-year base workmanship warranty for the HELIOS ESS 52-48-16000. Registration with Discover within 30 days of installation extends the workmanship warranty to up to 10 years, subject to the manufacturer’s warranty terms. Separate energy performance coverage and throughput limits also apply.
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