DIY Solar Power - Made Easy!
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Vertical Mount 48V LiFePO4:
Powerpro Battery by EG4

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If you are about to purchase server rack batteries, check these out first. They come at a lower price and smaller foot print and can be mounted outside (if you buy the outdoor rated model). The indoor rated model is actually cheaper than any server rack battery on the market and with more features!

This is my new go-to 48V battery. Check out their features:
  • 14.3kWh! Equal in capacity to almost 3X server rack batteries
  • Outdoor or indoor rated. On the outdoor rated model, the main terminals, communication ports and screen are all waterproof
  • Use with communication or without. All you need is a 48V inverter from any manufacturer and you are good to go!
  • Code Compliant for ESS
  • Works with all common grid interactive inverters like sol ark and luxpower
  • Lower in price than server rack batteries!
  • Comes with 500A rated copper bus bars and quick connect amphanol connector plugs
  • Easy to install. They are heavy, but with a hand truck you can place these wherever you need them. I mount mine on the ground and secure them to the wall, but they are designed to be direct mounted to the wall. The choice is yours!
Currently this is what I am running my shop with. The photo on the left is my current system. 

Easy to Scale with the 18KPV:

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Or with 6000XP!

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There are 2 Models to Choose From:


​Indoor Rated Power Pro

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Current Connected

Click Here to Purchase Individual Indoor PowerPro Battery


Signature Solar

Click Here to Purchase Individual Indoor PowerPro Battery

Outdoor Rated Power Pro

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​Current Connected

Click Here to Purchase Individual Outdoor Rated PowerPro Battery


​Signature Solar

Click Here to Purchase Individual Outdoor Rated PowerPro Battery


Click Here to Purchase an Inverter 


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  • Home
  • DIY Solar Packages
    • Off-grid System Builder
    • Hybrid System Builder
    • Mobile Systems >
      • 48V 3kW Handtruck System
      • The Minimalist (great for small vans and cars)
      • The Classic 400 Watt (RV's, Vans, Buses)
      • 400 Watt w/ Alternator Charging
      • The Off Grid King (Power Anything!)
  • Solar Batteries
    • 48V Server Rack LiFePO4
    • 48V Vertical Mount LiFePO4
    • 12V Lithium Batteries
    • Raw Cell DIY Batteries >
      • Raw LiFePO4 Cells
      • BMS
    • Battery Capacity Testers
  • Solar Components
    • 50-250W Solar Panels
    • 300W+ Solar Panels
    • Ground Mount Solar Racking
    • Inverters
    • Solar Charge Controllers
    • Battery Chargers
    • Wire and Connectors
    • Fuses and Circuit Breakers
    • Tools
    • Battery Monitors
    • Automatic Transfer Switches
    • Battery Isolators
    • Solar Friendly Air Conditioners
    • 12v Fridges
  • Free Solar eBook
  • Plug-N-Play Systems
    • Full Size Systems
    • Ultra Portable Systems
  • Videos
    • Solar Power for Beginners
  • The Forum
  • How to Mount Solar Panels to a Vehicle
  • Contact Me
  • Policies and Disclaimers