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Price Match Guarantee 💲 Fast & Free Shipping 📦 No Sales Tax 💵 Post Purchase Support 🤝 Free Replacement Parts 🛠️ Dealer Warranty 👷🏼 Extended Warranty!

Price Match Guarantee 💲 Fast & Free Shipping 📦 No Sales Tax 💵 Post Purchase Support 🤝 Free Replacement Parts 🛠️ Dealer Warranty 👷🏼 Extended Warranty!

Price Match Guarantee 💲 Fast & Free Shipping 📦 No Sales Tax 💵 Post Purchase Support 🤝 Free Replacement Parts 🛠️ Dealer Warranty 👷🏼 Extended Warranty!

Price Match Guarantee 💲 Fast & Free Shipping 📦 No Sales Tax 💵 Post Purchase Support 🤝 Free Replacement Parts 🛠️ Dealer Warranty 👷🏼 Extended Warranty!
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Simpliphi Battery 48 Volt 3.8kWh Lithium Battery-1

Simpliphi Battery 48 Volt 3.8kWh Lithium Battery

SKU PHI-3.8-48-M
$2,992.50

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The SimpliPhi (now Briggs & Stratton) PHI 3.8 is a 48-volt, 3.8 kWh lithium ferro phosphate (LFP) battery for energy storage applications. It is known for its safety, scalability, and compatibility with industry-standard inverters and charge controllers. 
Key specifications
  • Model:  PHI 3.8-48-M
  • Chemistry: Lithium Ferro Phosphate (LFP)
  • Nominal voltage: 51.2 VDC
  • Usable capacity: 3.8 kWh (at 100% Depth of Discharge)
  • Amp-hours: 75 Ah
  • Continuous discharge rate: 37.5 Amps DC (1.9 kW DC)
  • Surge discharge rate: 80 Amps DC for 10 minutes (4.1 kW DC)
  • Efficiency: 96–98%
  • Operating temperature: -4°F to 140°F (-20°C to 60°C)
  • Cycle life: 10,000+ cycles at 80% Depth of Discharge (DOD)
  • Warranty: 10 years or 10,000 cycles at 80% DOD 

Main features
  • Safety: The LFP chemistry is cobalt-free, which eliminates the risk of thermal runaway and fire. It does not require ventilation, cooling, or thermal regulation.
  • Scalability: The battery has a modular, lightweight design that allows for parallel connections to expand system capacity.
  • Integration: It is compatible with all standard 48V solar inverters and charge controllers.
  • Applications: The PHI 3.8 is suitable for a wide range of uses, including off-grid and grid-tied systems, backup power, peak shaving, and mobile power.
  • Simplified installation: The unit includes an accessible 100A DC breaker with an on/off switch for safety and convenience, which simplifies electrical design.
  • Environmentally friendly: The battery is made from non-toxic and non-hazardous materials and is recyclable. 

Shipping is FREE on all orders to customers within the 48 Contiguous States and the District of Columbia. We do not ship to Alaska, Hawaii, or any outlying islands and territories.

Processing time for orders is 1 business day

Shipping time for orders is 4-5 business days


Want to know more about our Returns Policy? Read more here.

Want to know more about our Shipping Policy? Read more here.

We get it. You've got a lot of choice when it comes to online retailers. Here's why we think you should shop with us at Krato Power.

  • Family Owned & Operated. Ask for Alex (Owner) at any time!
  • 4-5 Day Free Shipping with free liftgate service to the 48 Contiguous States and the District of Columbia. No extra charges. Ever
  • NO Sales Tax except for IN
  • Secured Purchase. All Customer data is secured with SSL Encryption
  • 30 Day Easy Returns. Not happy with your product, we'll take it back no questions asked.
  • Exceptional Customer Service. Check out our About Us page.
  • Call or Text Us - We are really here! (In the USA). 1-888-855-7286
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All of our items are in stock and ready to ship. All items ship within 1 business day.

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30 Day Easy Return Policy

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Description
The SimpliPhi (now Briggs & Stratton) PHI 3.8 is a 48-volt, 3.8 kWh lithium ferro phosphate (LFP) battery for energy storage applications. It is known for its safety, scalability, and compatibility with industry-standard inverters and charge controllers. 
Key specifications
  • Model:  PHI 3.8-48-M
  • Chemistry: Lithium Ferro Phosphate (LFP)
  • Nominal voltage: 51.2 VDC
  • Usable capacity: 3.8 kWh (at 100% Depth of Discharge)
  • Amp-hours: 75 Ah
  • Continuous discharge rate: 37.5 Amps DC (1.9 kW DC)
  • Surge discharge rate: 80 Amps DC for 10 minutes (4.1 kW DC)
  • Efficiency: 96–98%
  • Operating temperature: -4°F to 140°F (-20°C to 60°C)
  • Cycle life: 10,000+ cycles at 80% Depth of Discharge (DOD)
  • Warranty: 10 years or 10,000 cycles at 80% DOD 

Main features
  • Safety: The LFP chemistry is cobalt-free, which eliminates the risk of thermal runaway and fire. It does not require ventilation, cooling, or thermal regulation.
  • Scalability: The battery has a modular, lightweight design that allows for parallel connections to expand system capacity.
  • Integration: It is compatible with all standard 48V solar inverters and charge controllers.
  • Applications: The PHI 3.8 is suitable for a wide range of uses, including off-grid and grid-tied systems, backup power, peak shaving, and mobile power.
  • Simplified installation: The unit includes an accessible 100A DC breaker with an on/off switch for safety and convenience, which simplifies electrical design.
  • Environmentally friendly: The battery is made from non-toxic and non-hazardous materials and is recyclable. 
Shipping

Shipping is FREE on all orders to customers within the 48 Contiguous States and the District of Columbia. We do not ship to Alaska, Hawaii, or any outlying islands and territories.

Processing time for orders is 1 business day

Shipping time for orders is 4-5 business days


Want to know more about our Returns Policy? Read more here.

Want to know more about our Shipping Policy? Read more here.

Why Buy From Us

We get it. You've got a lot of choice when it comes to online retailers. Here's why we think you should shop with us at Krato Power.

  • Family Owned & Operated. Ask for Alex (Owner) at any time!
  • 4-5 Day Free Shipping with free liftgate service to the 48 Contiguous States and the District of Columbia. No extra charges. Ever
  • NO Sales Tax except for IN
  • Secured Purchase. All Customer data is secured with SSL Encryption
  • 30 Day Easy Returns. Not happy with your product, we'll take it back no questions asked.
  • Exceptional Customer Service. Check out our About Us page.
  • Call or Text Us - We are really here! (In the USA). 1-888-855-7286