The PHI 3.8™ kWh 60 Amp deep-cycle Lithium Ferro Phosphate (LFP) battery is optimized with proprietary cell architecture, power electronics, BMS and assembly methods. It is modular, light- weight and scalable for installations that range from kWh to MWh. Provides power security and seamless integration of renewable and traditional sources of energy in conjunction with or independent of the grid: net zero, peak shaving, emergency back-up, portable and mobile.
CHEMISTRYLithium Ferro Phosphate (LFP)
The safest Lithium Ion chemistry available
No cobalt, risk of thermal runaway or fire
OCPDBuilt-in accessible 80 Amp DC breaker On/Off switch
BMSBuilt-in Battery Management System
COMPATIBILITYCompatible with all industry standard inverters and charge controllers
Battery bank-to-inverter output sizing must adhere to a 2:1 ratio:
battery quantity = (inverter kWAC rating ÷ inverter efficiency)
÷ battery MAX Continuous Discharge Rate in kWDC
MAINTENANCEMaintenance-free
No ventilation, cooling or thermal regulation required

Customize My Box
We'll custom design this system for you and calculate how many solar panels you need to meet your goals.
Request customized kit

Solar Calculator
Use our easy solar panel calculator to get a quick estimate of how many solar panels you’ll need for your home.
Size My Solar System

Free Solar Roof Layout
Our engineers use state-of-the-art software to conduct a PV analysis and draft a free layout of solar on your roof, included with our complimentary quote.
Get My Free Layout
Get Started
With Solar
We'll help you figure out your solar needs!
Fill out the form for a complimentary solar quote that includes a custom solar panel layout using satellite technology and a breakdown of solar energy production, federal tax credit and energy offset.