FOSSiBOT FB3840 Expansion Battery - 3840Wh LFP (For FOSSiBOT F3600 Pro)

€2,299.00 €1,499.00 SAVE 35%
Tax included. Free shipping from our German warehouse to the EU
  • Features with a 100W USB-C and a 18W USB-A ports,you can use the FB3840 as a portable power station.
  • The FB3840 expansion battery enables it to recharge quickly through solar power at a 200W maximum loading scale.
  • Intelligent Battery Management System (BMS)
  • 2-Year Hassle-Free Warranty
Coupon Code:BATF3840 2025/02/13~2025/02/28€100OFF

Product Model: FB3840 | 3840Wh Expansion Battery

FB3840 | 3840Wh Expansion Battery
2*FB3840 | 7680Wh Expansion Battery
FB3840 Expansion Battery + SP200
2*FB3840 Expansion Battery + SP200
2*FB3840 Expansion Battery + 2*SP200
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Rated 4.5 / 5 based on 85 reviews Showing our 4 & 5 star reviews.

    Free
    EU Local Shipping

    2-year Hassle Free
    Warranty

    Lifetime Customer
    Support
    FOSSiBOT FB3840
    Smart Battery Pack
    Compatible With FOSSiBOT F3600 Pro
    Each FB3840 unit provides 3840Wh. Connecting one doubles the capacity to 7680Wh, while connecting two triples to 11520Wh. This ensures days of power for essential appliances with the FOSSiBOT F3600 Pro.
    Solar Charge Or Ac Charge for Expandable Battery
    FB3840 expansion battery can be recharged by a 200W solar panel or by car. When connected to the FOSSiBOT F3600 Pro, it can utilize all of the F3600 Pro charging methods.
      Portable Power, Anytime
      FOSSiBOT FB3840 offers portable power for you at anytime, anywhere. As long as you need it, it is ready for you.
        Versatile DC Output Power
        FB3840 comes with a 18W USB-A and a 100W type-C output port, allowing you to power your smartphones, laptops, fans, USB LED lights, and so on.
        Informative Screen Display
        1XT60 Input Port
        5Expansion Battery
        8High/Low-Temperature Protection
        2Fast Charge Indicator
        8Battery Percentage
        9Input Total Power
        3USB Output
        7Remaining Use/ ChargeTime
        10Output Total Power
        4PD3.0 Output
        Power Longer, Save Energy Bills
        Paired with FOSSiBOT F3600 Pro, the companion will save much much money for your energy bills and power longer for your needs.
        Safe LiFePO4 Battery,6500+ Lifespan
        FB3840 expansion battery adopts the same EV-grade LiFeP04 battery with BMS protection. Safe and super long battery life for more than 10 years use.
        What's in the box
        FB3840 Smart Battery
        Parallel Cable
        Leather Sheath
        User Manual

        PREVIEW

        BATTERY INFO

        Capacity:
        3,840Wh
        Type:
        LiFePO4
        Rated Life Cycle:
        6500+ Cycles to 50% Original Capacity
        Shelf-life:
        Recharge to 80% Every 3-6 Months
        Management System:
        BMS

        OUTPUT

        USB-A:
        1xQC3.0 18W
        USB-C:
        1x100W Max.

        INPUT

        XT60:
        1x200W Max.

        GENERAL

        Weight:
        37.8kg / 83.33lbs
        Dimensions (L × W × D):
        60.90 x 32.10 x 47.55 cm
        Operating Temperature:
        0-40℃ (32-104℉)
        Discharging Temperature:
        -15-40℃ (-4-104℉)
        Storage Temperature:
        -15-40℃ (-4-104℉)
        Certification:
        FCC,CE,PSE,RoHS,UN38.3,MSDS
        Warranty:
        24 Months

        In The Box

        Download

        FOSSiBOT FB3840 Expansion Battery User Manual

        Download Now

        FAQ

        Hear it Straight From Our Pros and Users