• Description

Briggs & Stratton SimpliPHI Boss-6, Battery Only Storage System

Expand your energy storage by 22.8 kWh with the BOSS.6! This carbon-steel enclosure is a NEMA 3R-rated weather-resistant battery bank housing and wiring solution with built-in shelving. Holding up to 6 PHI batteries, this enclosure can be free-standing or pad mounted.

EXPAND YOUR ENERGY STORAGE - MORE POWER PER HOUR

SimpliPhi Power's BOSS.6 carbon-steel enclosure is a weather-resistant battery bank housing and wiring solution with built-in shelving. The BOSS consolidates a PHI battery bank paired with any SimpliPhi-compatible Balance of System equipment and can provide additional battery capacity to a SimpliPhi ExprESS or AccESS fully integrated unit. They include terminal blocks for electrical wiring in parallel, busbar-to-terminal block battery cabling, and terminal block to inverter cabling when ordered. Optional 2 and 3 position battery-to-battery interconnecting busbar sets can be ordered separately depending on quantity of batteries added to the enclosure.

NEMA 3R-rated, weather- resistant carbon steel enclosures are easily installed and assembled.

Corrosion-resistant fan prevents PHI batteries from reaching maximum 120F charging temperature.

Energized with cobalt-free, safe and non-toxic PHI batteries that outperform alternative solutions.

  • Specification Sheet |Download
  • Installation Manual |Download
  • Warranty Terms |Download
Specifications
Dimensions (W x H x D) 36” W x 36”H (40” w/feet) x 16” D / 91.4 cm W x 91.4 cm H (101.6 cm w/feet) x 40.64 cm D
Weight 180 lbs. (81.64 kg.) w/o batteries
Enclosure Rating NEMA 3R Outdoor rated
Mounting Free-standing or Pad-mounted
Knockouts 3 x Trade Size 1 Knockouts per side (6 total)
Built-In DC Connections 2 x 5-point Terminal Busbars, 3/8” lugs, 650 ADC
Charging Temperature 32 F to 120 F (0 C to 49 C)
Maximum Contained Battery Quantity Six (6) PHI 3.8, 3.5 or 3.4 batteries (each battery measuring 13.5” W x 15.5” H w/terminals x 8” D)
Enclosure Warranty Period 5 years

Frequently Asked Questions

Yes! We provide free and fast shipping on MOST orders within the continental United States. However, some specific brands and items will require a quote. You can live chat or call us for a quote
Most orders ship out within 1–2 business days and arrive within 3–5 business days depending on your location.
We offer easy returns as long as your item meets the conditions outlined in our Return Policy. Items must be unused, in original packaging, and returned within the specified return window.
Absolutely! Our in-house product experts are here to help. Live chat or call us 513-743-829 for personalized advice before or after your purchase.
Yes. All products include any applicable manufacturer warranties, and we’ll help you handle any warranty claims if needed.
Yes, we only sell 100% authentic, brand-new products, sourced directly from our manufacturers or authorized distributors.
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Feedback From Our Customers

At Green Vista Living, we pride ourselves on delivering top-quality products and exceptional service to solar professionals and homeowners alike. Here's what our customers have to say about their experiences with us.

Kevin Leary
May 18, 2025
★★★★★

Incredible Tech Support from Anees of Green Vista Living. Exceptional service and went above and beyond on every question.

Bryan Cunningham
Off grid Kit • Dec 21, 2025
★★★★★

Shipment was slow due to high demand, but the team kept me informed and ensured everything arrived properly.

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