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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!

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

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Simpliphi by Briggs & Stratton PHI-3.8-48-M 48 Volt 3.8kWh Lithium Battery

SKU PHI-3.8-48-M
Sold out
$2,998.97
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Find a better price somewhere else?

Well... we will BEAT their price to get you the lowest pricing, we will find and SPEAK with a local installer, AND you get our post-purchase customer support.

  • US Based Authorized DuroMax Dealer

    Full manufacturer warranty included

  • 4-5 Day Free Shipping + No Sales Tax

    More savings on every purchase and ships in 4-5 business day

  • Easy 30-Day Returns & Price Beat Guarantee

    Risk-free shopping + best price guaranteed

  • Post-Purchase Customer Support

    Dedicated help whenever you need it


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In Stock and Ready To Ship

All of our items are in stock and ready to ship. All items ship within 1 business day.

Top Customer Service

We have excellent customer service. Questions? Call us at 1-888-855-7286

Hassle Free Returns

30 Day Easy Return Policy

Price BEAT Guarantee

Found a better price? We will BEAT it!

Simpliphi PHI Energy Battery Clean Power Designed for Everyday Spaces

Simpliphi by Briggs & Stratton PHI-3.8-48-M 48 Volt 3.8kWh Lithium Battery is a compact and reliable energy storage solution designed for indoor residential and light commercial use. It features a 48-volt lithium iron phosphate design, long cycle life, maintenance-free operation, and a wall-mountable enclosure that saves space while delivering consistent backup and off-grid power.

Choose the Simpliphi PHI-3.8-48-M Battery to bring dependable and clean power into your home. Add it to your energy system today and enjoy peace of mind with reliable indoor energy storage.

Specifications

  • Nominal Voltage: 51.2 V DC
  • Voltage Range: 48 to 56 V DC
  • Capacity: 75 amp-hours
  • Energy Capacity: 3.8 kWh usable at 100% depth of discharge and 3.04 kWh at 80% depth of discharge
  • Max Surge Discharge 10 minutes: 80 A DC or 4.1 kW
  • Max Continuous Discharge: 37.5 A DC or 1.92 kW
  • Max Continuous Charge: 37.5 A DC or 1.92 kW
  • Depth of Discharge: up to 100%
  • Operating Efficiency: 98%
  • Self-Discharge: less than 1% per month
  • Charging Temperature: 0 to 49°C (32 to 120°F )
  • Operating Temperature: -20 to 60°C (-4 to 140°F)
  • Storage Temperature up to 6 months: -10 to 25°C (14 to 77°F)
  • Storage Temperature up to 3 months: -20 to 45°C (-4 to 113°F)
  • Cycle Life: over 10,000 cycles at 80% depth of discharge
  • Memory Effect: none
  • Weight: 86 lb (39 kg)
  • Dimensions: 13.5 × 14 × 8 inches (34.3 × 35.6 × 20.3 cm)
  • Enclosure Volume: 0.88 cubic feet or 0.025 cubic meters
  • Warranty: 10 years

Features:

  • High energy density in a compact, space-saving design
  • Long cycle life with durable lithium iron phosphate chemistry
  • Rapid charge and discharge for reliable power delivery
  • Advanced safety protections with integrated battery management system
  • Scalable design for expanding energy storage needs
  • Maintenance-free operation with no watering or equalization
  • Compatible with residential, commercial, and backup power systems
  • Quiet, efficient performance ideal for indoor installations

Product Documents:

Shipping/Return Policy

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

Schedule a Consultation

  • Still interested but want to talk at a diferent time?
  • Schedule a consultation here for later!
Book a Consultation
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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