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SimpliPHI 6.6 Battery System Specifications
| Model | SPHI-6.6-LO |
| Total Capacity | 6.65 kWh (6,656 Wh) |
| Nominal Voltage | 51.2 VDC |
| Charge Power | 3.33 kW |
| Discharge Power | 6.66 kW |
| Surge Power (10s) | 8.3 kW |
| Continuous Discharge Current | 130 ADC |
| Operating Temperature | -20°C to 55°C (-4°F to 131°F) |
| Cycle Life | 4,500 cycles @ 100% DOD |
| Round-Trip Efficiency | ≥96% |
| IP Rating | IP65 (when installed) |
| Weight | 125 lbs (56.7 kg) |
Complete roof mounted solar systems engineered for durability and ease of installation. Our premium kits include IronRidge XR rail systems, compatible with all our solar panels and available for all roof types, with special options for tile, flat, and metal roofs at competitive wholesale pricing.
Briggs & Stratton SimpliPHI 6.65 kWh Home Battery System
SKU BAS-SIMPLIPHI-6.65-SINGLE
The SimpliPHI 6.65 kWh Battery System
The Briggs & Stratton SimpliPHI 6.65 kWh battery system provides residential energy storage in a single, compact module designed for rapid deployment and reliable operation. This system utilizes Briggs & Stratton's RapidStak™ connector technology, allowing for future expansion while delivering immediate energy storage benefits for essential load backup, solar self-consumption, and time-of-use optimization.
Built with lithium ferro phosphate (LFP) chemistry, this single-module configuration provides 6.66 kW of continuous discharge power and 3.33 kW of charge power, making it suitable for essential circuit backup and smaller residential installations. The system maintains full outdoor rating when properly installed, eliminating the need for additional protective enclosures.
SimpliPHI 6.65 kWh Battery System Features
- Essential Load Backup: Single 6.65 kWh module delivers 6.66 kW continuous power for essential circuits including lights, refrigeration, and communications.
- 5-Minute Installation: RapidStak™ connectors enable complete single-unit installation in under 5 minutes without traditional DC wiring or combiner boxes.
- Expandable Design: Future-ready architecture allows stacking up to 3 units (19.95 kWh) or scaling to 18 total units (119.7 kWh) system-wide.
- All-Weather Operation: IP65 rating enables direct outdoor installation in all weather conditions without additional protective enclosures.
- Safety Certified: UL 9540A fire safety tested with lithium ferro phosphate chemistry that eliminates cobalt-related thermal runaway risks.
SimpliPHI's Seamless Inverter Integration
The SimpliPHI 6.65 kWh system integrates seamlessly with Sol-Ark® 8K-2P, 12K-2P, and 15K-2P inverters through full closed-loop communication, providing real-time monitoring and system optimization. The system also maintains broad compatibility with any 48V lithium-supporting inverter in non-communicating mode, ensuring flexibility with existing equipment preferences.
SimpliPHI 6.6 Battery System Review
The SimpliPHI 6.65 kWh single-unit configuration serves as an excellent entry point for residential energy storage, particularly for applications requiring essential load backup without the complexity of larger systems. The RapidStak™ connector technology delivers consistent sub-5-minute installation times that significantly reduce labor costs compared to traditional battery systems. The 130 ADC continuous discharge capability provides sufficient power for essential home circuits while maintaining the option for future expansion.
The IP65 outdoor rating represents a significant advantage for installations where indoor space is limited or unavailable. This weatherproof certification allows direct mounting to exterior walls or ground-based installations without requiring additional protective enclosures, reducing both material costs and installation complexity. The extended operating temperature range from -20°C to 55°C ensures reliable performance across diverse climate conditions, while the powder-coated steel enclosure provides long-term durability against environmental exposure.
SimpliPHI 6.95 kWh Accessories
SimpliPHI 6.6 Floor Mount Base
Secure floor mounting solution designed specifically for the SimpliPHI 6.6 battery system. One floor mount base required per battery system for stable ground installation.
SimpliPHI 6.6 Wall Mount Base
Space-saving wall mounting solution for the SimpliPHI 6.6 battery system. One wall mount base required per battery system for secure vertical installation.
SimpliPHI Battery Controller
Essential battery management controller with 10-year warranty. One battery controller required per SimpliPHI 6.6 system for optimal performance and monitoring.
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