FREE SHIPPING on orders over $100 for qualified items.

Open Mon-Fri 7 to 5 PST

Click to call now

About SimpliPhi


Key Points

  • Drop-in upgrade for traditional lead-acid batteries
  • Compared to regular lithium-ion, LiFePo is safer, contains no toxic minerals, can better handle temperature extremes, and can sustain more charge cycles
  • Built-in Battery Management System: No external ventilation, cooling, or heating required.
  • Designed and built in California


SimpliPhi's lithium iron phosphate (LiFePo/LFP) batteries are drop-in upgrades for traditional lead-acid batteries. LiFePo is a special chemistry, and compared to other lithium-ion batteries, it is safer, easy to use and contains no toxic minerals like cobalt. SimpliPhi batteries come with a built-in Battery Management System (BMS) and do not require additional ventilation, cooling, or thermal management. They're designed and built in California and carry 10-year warranties.

SimpliPhi Batteries

ModelPart No.VoltageAmp HoursTypeWarrantyPrice
Subcategory: LFP (Lithium Ferro Phosphate)
SimpliPhi PHI 3.5 kWh 24v 138 Ah LFP Battery958010024VDC138AhLFP (Lithium Ferro Phosphate)10-years
SimpliPhi PHI 3.5 kWh 48v 69 Ah LFP Battery958010548VDC69AhLFP (Lithium Ferro Phosphate)10-years
SimpliPhi PHI 2.7 kWh 24v 105 Ah LFP Battery958011024VDC105AhLFP (Lithium Ferro Phosphate)10-years
SimpliPhi PHI 2.7 kWh 48v 52 Ah LFP Battery958011548VDC52AhLFP (Lithium Ferro Phosphate)10-years
SimpliPhi PHI 1.3 kWh 24v 51.2 Ah LFP Battery958014024VDC51.2AhLFP (Lithium Ferro Phosphate)5-years
SimpliPhi PHI 1.3 kWh 12v 102.4 Ah LFP Battery958014512VDC102.4AhLFP (Lithium Ferro Phosphate)5-years

SimpliPhi Battery Accessories

ModelPart No.DescriptionPrice
SimpliPhi Phi 3.4/3.5 Wall Mounting Bracket9580120SimpliPhi 3.4/3.5 Wall Mount Bracket
Free Shipping Icon
SimpliPhi Phi 2.6/2.7 Wall Mounting Bracket9580125SimpliPhi 2.6 Wall Mount BracketCALL
image of getting started with solar guide
Download Our Solar Battery Guide
A poorly designed system can ruin your batteries. Our Solar Battery Guide will help you size your battery bank properly and keep things running smoothly.