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    OGM

    Battery Config

    Industry standard for residential off-grid 5kW+ — thinnest DIY-safe cables

    The gold standard for off-grid. 80% usable capacity, near-zero waste heat, lightest option per kWh. Most expensive upfront but cheapest per cycle over lifetime. Won't catch fire.

    : 80%: 96%: 2%/moWeight: 11 kg/kWhCycle life: 3000–5000 cycles @ 80% DODMaintenance: None — BMS handles balancing, no thermal runaway risk

    Required Capacity

    815 Ah@ 48V System
    39.1 kWh Total
    31.3 kWh Usable
    Weight
    430 kg
    Cost/Cycle
    $5.13
    Efficiency Loss
    1.56 kWh
    Self-discharge
    0.03 kWh/2d

    Runtime Estimates

    Based on 31.3 kWh usable capacity

    Critical Loads (Fridge, Lights)62.6 hrs
    Normal Use (TV, Laptop)20.9 hrs
    Heavy Use (AC, Heating)10.4 hrs
    Est. Cost (LiFePO4 (Recommended))$17,596 - $23,461

    Compare All ChemistriesShow

    For your 15 kWh/day load with 2 days autonomy

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