2025 Briggs & Stratton SimpliPHI® 6.6 Battery Base

Current Briggs-Stratton Energy-Storage SimpliPHI® 6.6 Battery

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Year 2025
Make Briggs & Stratton
Model SimpliPHI® 6.6 Battery

2025 Briggs & Stratton SimpliPHI® 6.6 Battery

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, boasting an installation time of less than 5 minutes. Stack 3 units effortlessly to unlock nearly 20 kWh of compact capacity. 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.

Features may include:

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.

Battery

Battery Capacity, Nominal DC Voltages: 51.2 VDC | Range: 44.8 - 56.8 VDC

Electric

Operational

Operating Temperature, Maximum Charging: -10°C ~ 50°C | Discharge: -20°C ~ 55°C | Storage: -20°C ~ 55°C for 1 month / -20°C ~ 45°C for 6 months

Operating Conditions Self-Discharge Rate: <.03 %/month (shutdown/off) | Cycle Life: 4500 Cycles @ 0.75C charge/discharge rate (@ 100% DOD) | Efficiency Rating: =96% | Operating Humidity: 0% - 95% RH

Dimensions

Width 28.6 in. (725.0 mm) | Wall Mount: 28.6 in

Height Without Tabs: 17.3 in. (440.0 mm) | With Tabs : 18.9 in. (479.2 mm) | Wall Mount: 60.4 in

Depth, Maximum 6.7 in. (170.0 mm) | Wall Mount: 6.7 in

Dimensions Altitude: =3000M

Weights

Weight 125 lbs (56.7 kg)

Features

Features Maximum per Stack: 3 | Maximum per System: 18 | Enclosure Material: Powder-coated Steel | Corrosion Resistance Rating: 240H | Salt-Fog Rating: 240H | Communications: CAN, RS485 - Compatible with leading inverters | Certifications: UL9540, UL 9540A, UL1973, UL 1998 + 991, UN 38.3, UN 3480, IEC62619 | IP Rating: IP 20 (IP 65 when installed)