SimpliPhi SPHI-ESS-10-6 – 9.96 kWh Energy Storage System, 6 kW Inverter, AC/DC Coupled
The SimpliPhi SPHI-ESS-10-6 is a vertically integrated energy storage system combining two SimpliPhi 4.9 kWh Lithium Ferro Phosphate (LFP) batteries, a 6 kW hybrid inverter with integrated MPPT, and the EnergyTrak control platform. Designed for homes and businesses, it delivers scalable, safe, and highly efficient backup or primary power in both on-grid and off-grid applications.
With 9.96 kWh of usable energy storage and a 6000W power output, this system supports critical loads, reduces peak utility charges, and ensures uninterrupted operation during power outages. Modular architecture allows you to scale power by adding inverters or expand energy capacity by adding batteries—offering true flexibility to meet evolving energy needs.
Key Features
Integrated Energy Storage Solution
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Two SimpliPhi 4.9 kWh LFP batteries (total: 9.96 kWh).
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SimpliPhi 6 kW Hybrid Inverter with integrated dual MPPT inputs.
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EnergyTrak mobile app for advanced monitoring and remote control.
Safe and Reliable Operation
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Lithium Ferro Phosphate (LFP) chemistry – cobalt-free, non-toxic, with no risk of thermal runaway.
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Integrated Battery Management System (BMS) for optimal safety and extended cycle life.
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IP65-rated for indoor or outdoor installation.
Flexible & Scalable
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AC or DC coupled configurations for solar, generator, or grid integration.
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Scalable power – Add up to 9 inverters for a total of 54 kW load support.
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Scalable energy – Expand up to 72 batteries for a total of 358.5 kWh capacity.
Smart Energy Management
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EnergyTrak platform – Multi-layer monitoring, 5-step commissioning, and over-the-air updates.
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Remote reconfiguration to minimize site visits.
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Fleet management tools for professional installations.
Seamless Performance
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<8 ms transfer time to protect sensitive electronics.
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96% round-trip battery efficiency.
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Up to 10,000 cycles at 80% DoD with 80% retained capacity after 10 years
Modular components in one Energy Storage System (ESS) allow you to scale power and energy independently.
- EnergyTrak - Energy management software platform with multi-layered monitoring and control gives you the information needed to effectively manage your SimpliPHI ESS
- Scale Power - Add inverters over time to increase power output for larger electrical loads
- Scale Energy - Start small and add batteries to get you through extended power outages
- Versatile - IP 65 rated for indoor or outdoor installation, AC or DC Coupled, on or off grid
- Closed Loop Communication - Seamlessly integrate with other system components to streamline programming and ensure peak performance
- Battery Management System (BMS) - Integrated BMS protects the battery, creates additional safety, and extends cycle life
- Automatic Notifications - Mobile app provides remote visibility to maximize interoperability and minimize on-site support
- Superior Warranty - Up to 10 years, backed by the power experts at Briggs & Stratton*
SimpliPHI 6 kW Inverter
Hybrid Inverter with integrated MPPT works seamlessly with the SimpliPHI 4.9 Battery, EnergyTrak, and Mobile App to deliver the most efficient, scalable, easy-to-use backup or primary power system available for homes and businesses.
- Multiple Energy Sources - Designed to pair with solar, grid or generator in either AC or DC coupled configurations
- Versatile - On the grid or off, with or without batteries
- Scalable - Add up to 9 inverters for increased load support for a total of 54 kW
- Seamless Transition - Less than 8 millisecond switchover time protects sensitive electronics and minimizes downtime
- Digital interface - Easy programming and monitoring of primary system functions on the LCD screen
- EnergyTrak Enabled - Remote monitoring and quick 5-step commissioning through EnergyTrak mobile app
- IP 65 - rated for indoor or outdoor installations
- Warranty - Up to 10-year limited warranty*
- Product Brochure | Download
- Installation Manual | Download
- Specification Sheet | Download
EnergyTrak Control System
Provides advanced system monitoring through a sophisticated mobile app for smartphones or tablets, delivering real-time status and updates with intuitive control over the entire SimpliPHI Energy Storage System.
- Simple, Smart, and Reliable - EnergyTrak offers an ever-improving platform to maximize value over the life of the system
- Streamlined - 5-step commissioning for fast, frustration-free setup from a mobile device
- Fleet Management - Visibility into customer installations to maximize system uptime
- Remote Re-configuration - Minimizes the need for site visits on commissioned systems
- Over-the-Air Updates - Automatically ensures systems and apps are secure and code-compliant with the latest features
- Connectivity - Wi-Fi, Ethernet, and Bluetooth for simple, dynamic communication
- Product Brochure | Download
- Installation Manual | Download
SimpliPHI 4.9 Battery
Leveraging over a decade of battery expertise using Lithium Ferro Phosphate (LFP) chemistry, the SimpliPHI 4.9 Battery delivers efficient, reliable, and safe advanced-level power storage.
- Scalable - Up to 72 batteries with a total capacity of 358.5 kWh
- Closed-Loop Communications - Seamlessly integrate with other system components to streamline programming and ensure peak performance
- Battery Management System (BMS) - Proprietary state-of-the-art BMS protects the battery, creates additional safety, and extends cycle life
- Long Lifespan - 10,000 cycles at 80% DoD
- Maximum Energy Throughput - 34.9 MWh with 96% round trip efficiency increases the value of your storage investment over the life of the battery
- Retained Capacity - 80% remaining capacity after 10 years of use
- Safety-tested - Lithium Ferro Phosphate (LFP) chemistry is industry proven to reduce thermal runaway and fire propagation in residential and commercial installations
- IP 65 - Rated for indoor or outdoor use
- Warranty - 10-year limited warranty*
- Product Brochure | Download
- Installation Manual | Download
ESS Series Comparison
| Model |
Batteries |
Total Capacity (kWh) |
Total Power (kW) |
Inverters (6 kW) |
Includes AGS |
| SPHI-ESS-10-6 |
2 × 4.98 kWh |
9.96 |
6 |
1 × 6 kW |
Yes |
| SPHI-ESS-15-6 |
3 × 4.98 kWh |
14.94 |
6 |
1 × 6 kW |
Yes |
| SPHI-ESS-20-6 |
4 × 4.98 kWh |
19.92 |
6 |
1 × 6 kW |
Yes |
| SPHI-ESS-25-6 |
5 × 4.98 kWh |
24.90 |
6 |
1 × 6 kW |
Yes |
| SPHI-ESS-20-12 |
4 × 4.98 kWh |
19.92 |
12 |
2 × 6 kW |
Yes |
| SPHI-ESS-25-12 |
5 × 4.98 kWh |
24.90 |
12 |
2 × 6 kW |
Yes |
| SPHI-ESS-30-12 |
6 × 4.98 kWh |
29.88 |
12 |
2 × 6 kW |
Yes |
| SPHI-ESS-30-18 |
6 × 4.98 kWh |
29.88 |
18 |
3 × 6 kW |
Yes |
| SPHI-ESS-40-18 |
8 × 4.98 kWh |
39.84 |
18 |
3 × 6 kW |
Yes |
