Efficient, Reliable, High-Performance, Easy-to-Install Battery You Can Rely On From Briggs & Stratton

The SimpliPHI 6.6 Battery is a compact, fast-install energy storage solution designed for simple, tool-light installation and scalable performance. With RapidStak connectors that eliminate wiring, DIP switches, and extra hardware, installers can complete a three-battery stack in under five minutes. Its outdoor-rated, cabinet-free design, and broad inverter compatibility make it a flexible choice for a wide range of residential and commercial applications.

Key Benefits:

• RapidStak Installation: Self-guiding connectors combine power and communication paths into a single click-in interface for fast, repeatable installs.
• Wire-Free Setup: No loose wires, DIP switches, or additional hardware, reducing labor time and accessory costs.
• Scalable Storage: Each unit provides 6.65 kWh and can be stacked up to 3 per column or expanded to 6 stacks for larger multi-battery systems.
• Indoor/Outdoor Versatility: IP65-rated housing supports cabinet-free ground or wall mounting in all-weather environments.
• Flexible Inverter Compatibility: Fully compatible with EG4, Briggs & Stratton, and other leading 48V lithium-supporting inverters.
• Wide Application Use: Supports backup power, time-of-use shifting, solar+storage, and off-grid system designs.
• Proven Safety Standards: Certified to UL 1642, UL 1973, UL 9540 Ed. 3, UN 3480, DOT 38.3, and tested to UL 9540A for advanced safety assurance.
• Durable LFP Chemistry: Lithium iron phosphate cells engineered for long-term reliability and stable performance.

Use Cases:

Ideal for backup power systems, whole-home or partial-home energy storage, solar+storage applications, and off-grid installations. Its fast setup and flexible mounting options make it suitable for both residential and commercial environments, especially where rapid deployment and cabinet-free installation are priorities.

Tech Specs:

• DC Nominal Voltage: 51.2 VDC
• DC Voltage Range: 44.8 – 56.8 VDC
• Communications: CAN, RS485
• Rated Capacity: 130 Ah
• Energy Capacity: 6,656 Wh
• Max Continuous Charge: 130A
• Max Continuous Discharge: 130A
• Dimensions (H × W × D): 28.5" × 6.7" × 18.9"
• Weight: 140 lbs
• Certifications: UL 1642, UL 1973, UL 9540 Ed. 3, UN 3480, DOT 38.3, UL 9540A
• Ingress Rating: IP65

Learn more about this product's 15-Year Limited Warranty