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LiFePO4 Battery Management Systems (BMS)

 If you want to know how to build your own battery, check out this page: Click Here
If you need raw LiFePO4 Cells: Click Here
​(I make a commission for purchases made through the links below)

Overkill Solar Pathfinder 12/24/48V BMS

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Overkill solar is the king when it comes to BMS for DIY lifepo4 batteries. I was recommending their older bms for years, but they stopped selling them and have released this BMS instead. It has everything you need and is incredibly versatile. 
  • Rated for 170A.
    If using for 12V, max wattage output is 2,176W
    If using with 48V, max wattage output is 8,704W
  • Rated for 100% duty cycle. Run 170A 24/7 without overheating.
  • Advanced user interface with a built-in OLED display, user input buttons, Bluetooth and WIFI connectivity, OTA & UF2 firmware updates, MQTT for Home Assistant, and status LEDs.
  • Use any chemistry! Lifepo4, LTO or NMC, whatever you wish!


Click here to buy from Overkill Solar (American distributor with customer support)



How To Wire It Up for 12V

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How To Wire It Up for 48V

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I make a commission for sales made through affiliate links posted on this website
  • Home
  • DIY Solar Packages
    • Handtruck System Builder
    • Off-grid System Builder
    • Hybrid System Builder
    • Mobile Systems >
      • 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