SimpliPHI® 6.6 Battery System

Engineered for homes. Built for installers.

Introducing the SimpliPHI 6.6 Battery—a revolutionary energy storage solution. In a world where time is of the essence, this cutting-edge battery is a game-changer. Assemble a stack of 3 batteries in under 5 minutes for 19.95 kWh of energy. Engineered for ease of installation, the SimpliPHI 6.6 features our revolutionary RapidStak™ connectors that simply click into place, eliminating the need for tedious wiring or DIP switches. And it's outdoor-rated, so no additional cabinets needed. Backed by the trusted name of Briggs & Stratton and designed to integrate seamlessly with leading inverters.

With a true, wire-free design, the SimpliPHI 6.6 Battery might just be the industry’s fastest battery to install. We’ve actually timed it. Assemble a stack of 3 in under 5 minutes! Freeing up your time to install more systems. And, it’s not just saving you time. We’ve eliminated the hassle of battery installations. Our RapidStak™ connector includes all power and communications in one connection. No wires. No DIP switches. Minimal tools. Just a simple, building block-style installation.

Features

Faster Installations
Our unique RapidStak connector includes all communications and power in one connection. Assemble a stack of 3 in under 5 minutes.1
Wire and Hassle Free
No wires, no DIP switches, no complications. Installation requires fewer tools and accessories, and less cost.
Scalable for Any Application
Designed for maximum versatility, each battery delivers 6.65 kWh.2 Stack 3 for 19.95 kWh in a compact footprint. Scale up to 6 stacks for 119.7 kWh of energy.
Versatile Installation Options
IP65 rating supports all weather conditions for both indoor or outdoor installations. No cabinets needed. Ground or wall mount.
Choose Your Inverter
Designed to integrate with leading inverters, allowing ultimate flexibility and faster commissioning.
Designed for Versatility
Use for back-up power, time-of-use utility savings, solar+storage, or off-grid power.
Validated to the Industry's Toughest Safety Standards
UL 1642, UL 1973, UN 3480, UN DOT 38.3, UL 9540 Edition 3 (in progress). Tested to UL 9540A
Safer Battery Chemistry
Our lithium ferro phosphate (LFP) battery designs have been utilized for decades and proven in the harshest environments.

Briggs & Stratton SimpliPHI 48 Volt 6.6kWh Stackable Lithium Battery