Big changes are coming to solar in 2025. What you don’t know could cost you. Read more.

Authorized Distributor

SimpliPhi (Briggs and Stratton) Batteries

Select BRAND

Select Volts

Limited stock

SimpliPHI 1.4 24V Lithium Ferro Phosphate Battery (by Briggs & Stratton)

  • AMP Hours57 Ah
  • TypeLithium solar batteries

Delivery on Aug 01–06

Limited stock

SimpliPHI 3.8 24V Lithium Ferro Phosphate Battery (by Briggs & Stratton)

  • AMP Hours150 Ah
  • TypeLithium solar batteries

Delivery on Aug 01–06

Limited stock

SimpliPHI 3.8 48V Lithium Ferro Phosphate Battery (by Briggs & Stratton)

  • AMP Hours75 Ah
  • TypeLithium solar batteries

Delivery on Aug 01–06

In stock

SimpliPHI 6.6 48V Lithium Ferro Phosphate Stackable Battery (by Briggs & Stratton)

  • AMP Hours130 Ah
  • TypeLithium solar batteries

Delivery on Aug 01–06

Limited stock
Authorized Distributor Certificate
  • Genuine Products: You’re getting the real deal, backed by the manufacturer’s warranty.
  • Exclusive Offers: You can access promotions, discounts, or bundles that are only available through authorized distributors.
  • Competitive Pricing: We offer the best prices because we source directly from the manufacturer, with no middlemen driving up costs.
Authorized Distributor
Check our distributor status
  • Overview
  • Articles
  • FAQ

SimpliPhi Batteries For Sale

SimpliPhi (Briggs and Stratton) Power, now backed by Briggs & Stratton, has been engineering and manufacturing premium lithium ferro phosphate (LFP) batteries in Oxnard, California since 2007. As a Tier 1 energy storage manufacturer with over a century of power expertise, SimpliPhi has established itself as the go-to solution for military, humanitarian organizations, agricultural groups, and residential/commercial projects worldwide. Their California-based manufacturing facility ensures rigorous quality control and American-made reliability, while their global reach enables competitive pricing without compromising premium materials or safety standards. With SimpliPhi (Briggs and Stratton) batteries for sale through authorized distributors, customers access cutting-edge lithium ferro phosphate technology that delivers unmatched safety, longevity, and performance. The SimpliPhi (Briggs and Stratton) name represents "simplified power" – reflecting their commitment to making advanced energy storage accessible and hassle-free for every application, from simpliphi 48v residential systems to large-scale commercial installations.

Why you choose SimpliPhi?

🔒 Proven Safety Leadership

SimpliPhi (Briggs and Stratton) utilizes the safest lithium ion chemistry available - Lithium Ferro Phosphate (LFP) with no cobalt, eliminating risks of thermal runaway, fire propagation, and toxic coolants.

🇺🇸 American Manufacturing Excellence

All SimpliPhi (Briggs and Stratton) batteries are engineered and manufactured in California, USA, ensuring superior quality control and supporting American jobs.

⚡ Ultra-Fast Installation

Revolutionary RapidStak™ connectors enable installation of 3 batteries in under 5 minutes with no wires, DIP switches, or complex setup.

🛡️ Unmatched Longevity

Industry-leading warranty coverage with 10,000 cycles at 80% depth of discharge and 10-15 year warranties on most models.

What SimpliPhi battery series meets your energy needs?

SimpliPhi 6.6 Series - Revolutionary Stackable Power

SpecificationDetails
Power Output6.65kWh per unit, stackable up to 3 units for 19.95kWh total capacity
Target ApplicationResidential whole-home backup and commercial installations
Key TechnologyRapidStak™ connectors with all power and communications in one connection
Unique FeaturesOutdoor-rated design eliminates need for additional cabinets, installation in under 5 minutes
Models AvailableSPHI-B-6.6 (052015-01) - 6.65kWh 48V stackable units
Discharge Rate130 amps DC continuous charge/discharge rate
AssemblyManufactured in California, USA with gateway requirement for system integration

AmpliPHI 3.8 Series - Communications-Enabled Storage

SpecificationDetails
Power Output3.871kWh at 100% DOD, 3.09kWh at 80% DOD, 48V nominal
Target ApplicationResidential and commercial systems requiring advanced communications
Key TechnologyIntegrated Battery Management System (BMS) with closed-loop communications for Sol-Ark and SMA inverters
Unique FeaturesBuilt-in accessible 100 Amp DC breaker On/Off switch, scalable up to 30 batteries
Models AvailableAmpliPHI-3.8-48 with communications capability
Discharge Rate100 Amps for 10 minutes, 37.5 Amps continuous
Warranty15-year limited warranty with repair or replacement coverage

PHI 3.8-M Series - Versatile Modular Design

SpecificationDetails
Power Output3.8kWh capacity, available in 24V and 48V configurations
Target ApplicationResidential, RV, marine, and off-grid applications
Key TechnologyHigh-performance BMS with accessible 80A DC breaker and overcurrent protection
Unique FeaturesCompatible with all industry-standard inverter charge controllers, wall-mountable design
Models AvailablePHI-3.8-48-M (48V) and PHI-3.8-24-M (24V) variants
AssemblyEngineered and manufactured in California, US, 86 lbs weight
Warranty10-year limited warranty with registration requirement

How does SimpliPhi stack up against leading battery brands?

FeatureSimpliPhi 6.6Tesla Powerwall 3Enphase IQ 10
Power Output6.65kWh per unit13.5kWh per unit10.08kWh per unit
EfficiencyLFP chemistry, 130A discharge97.5% round-trip96.5% round-trip
Warranty Performance75% capacity after 10 years70% capacity after 10 years70% capacity after 10 years
Price/Performance⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐
Stackable OptionYes, up to 3 units (RapidStak)Yes, up to 10 unitsYes, up to 40 units
Notable Strengths5-minute installation, outdoor-ratedIntegrated inverter, brand recognitionMicroinverter ecosystem

What makes SimpliPhi batteries built to last?

ComponentSpecificationBenefits
Battery ChemistryLithium Ferro Phosphate (LFP) - safest lithium chemistry availableNo cobalt, no risk of thermal runaway or fire
Battery ManagementIntegrated high-performance BMS with communicationsReal-time monitoring, overcurrent protection
Safety CertificationsUL 1642, UL 1973, UL 9540, UL 9540A Fire Safety certifiedIndustry-leading safety compliance
Operating TemperatureNo ventilation, cooling or thermal regulation requiredMaintenance-free operation
Housing ProtectionWhite metal case, wall-mountable designDurable, professional appearance
Cycle Life Testing10,000 cycles at 80% DOD$0.12 per kWh lifetime cost

Independent testing by UL validates SimpliPhi (Briggs and Stratton) thermal stability and fire safety performance, with zero degradation in extreme stress tests. The outdoor-rated design withstands harsh environmental conditions without additional protective enclosures.

What do customers and experts say about SimpliPhi?

"All in all, an exceptional purchasing experience from Voltaico, thanks to Meredith. She did a fine job. The Briggs and Stratton batteries (Ampliphi) were packed very well and everything came through without incident."

"Your experience will be incredible! First, these folks have the best price of anyone online. Second, their staff walked us through options and an alternative unit, making certain what we wanted was actually what we needed."

🏆 Professional Recognition

SimpliPhi (Briggs and Stratton) batteries have earned recognition from industry leaders including UL certification for fire safety (UL 9540A) and compliance with UN 3480 international shipping standards. According to industry analysis, "few people in the solar industry would argue that there's a higher-quality LFP battery than Briggs & Stratton's SimpliPhi." The combination of customer trust and expert validation makes SimpliPhi (Briggs and Stratton) suitable for both residential backup power and demanding commercial installations.

Frequently Asked Questions About SimpliPhi Batteries

Where are SimpliPhi batteries manufactured?

All SimpliPhi (Briggs and Stratton) batteries are engineered and manufactured in Oxnard, California, USA, ensuring American quality standards and supporting domestic manufacturing.

What warranty coverage is provided?

SimpliPhi (Briggs and Stratton) offers industry-leading warranties: 15-year limited warranty on AmpliPHI series and 10-year warranties on other models, covering repair or replacement for manufacturing defects. Warranty registration is required and must be completed through the manufacturer's website.

Are SimpliPhi batteries suitable for extreme climatic conditions?

Yes, SimpliPhi 6.6 batteries are outdoor-rated and require no additional protective cabinets. The LFP chemistry operates without ventilation, cooling, or thermal regulation requirements.

How do SimpliPhi batteries perform compared to competitors?

SimpliPhi (Briggs and Stratton) batteries deliver exceptional value at approximately $0.12 per kWh over their lifetime - significantly more cost-effective than many competitors. Industry comparisons show SimpliPhi "meets or exceeds industry standards" with "excellent efficiency" and superior quality construction.

What certifications do SimpliPhi batteries have?

SimpliPhi (Briggs and Stratton) batteries are certified to UL 1642, UL 1973, UL 9540, and UL 9540A Fire Safety standards, plus UN 3480 international shipping compliance and CE certification.

Is bulk purchasing available for commercial projects?

Yes, volume pricing starts at 3 batteries and bulk purchasing is available for commercial installations. AmpliPHI systems can scale up to 30 batteries, while 6.6 series can expand to 6 stacks (18 batteries) for 119.7kWh capacity.

Ready to experience the SimpliPhi difference?

Discover SimpliPhi revolutionary stackable batteries with 5-minute installation and industry-leading warranties. Power your future with American innovation and uncompromising quality.

Shop SimpliPhi Batteries
What energy storage solutions does Briggs & Stratton offer?

They provide SimpliPHI® batteries, Sol-Ark® hybrid inverters, and AccESS™ integrated systems for residential and commercial energy storage.

How safe are Briggs & Stratton batteries?

Briggs & Stratton uses Lithium Ferro Phosphate (LFP) chemistry, known for its thermal stability and long lifespan, along with a Battery Management System (BMS) for monitoring.

Do Briggs & Stratton storage systems qualify for solar incentives?

Yes, they are eligible for the 30% Federal Solar Tax Credit (ITC) and may qualify for state and local rebates.

Are their products compatible with generators?

Yes, they can integrate with Briggs & Stratton standby generators and other third-party generators for hybrid power solutions.

Authorized Distributor
Check our distributor status

Stay tuned

Free and usefull digest on solar energy. No spam

By clicking "Subscribe", I agree by electronic signature to: (1) receive marketing and other texts and messages from A1 SolarStore, directly or from third parties acting on its behalf, at the email address I entered above; (2) the Terms and Conditions; and (3) the Privacy Policy.