Start with the real power draw of your setup. A typical Starlink dish and router draw roughly 50W to 100W depending on the model and conditions, with the Mini pulling considerably less. To size a battery, multiply your draw in watts by the number of hours you want to stay online, then divide by the battery voltage to get amp-hours — and add at least 20% headroom for inverter losses and battery ageing.
If you are running the dish from its stock AC supply, you need an inverter to convert your battery's DC to clean AC. Pick a pure sine wave inverter rather than a modified sine wave unit — the dish's power supply and many routers behave erratically on a rough waveform. Size the inverter for the dish's peak draw plus your router, and leave headroom so the inverter is not running at its absolute limit for hours at a time. Alternatively, skip the inverter entirely with a 12V DC power solution and run the dish straight from the battery for maximum efficiency.
A solar generator combines a battery, an inverter and a charge controller in one portable box, and it is the fastest route to self-sufficient backup power. Pair it with panels sized to replenish the battery faster than the dish drains it — as a rule of thumb, 200W to 400W of solar keeps a Standard dish running indefinitely in good sun. For permanent off-grid sites, a dedicated charge controller, lithium battery bank and fixed panels give you the best long-term value, and the Mini is the most solar-friendly dish thanks to its low draw.
If you already have a home battery or a standby generator, Starlink slots in easily. Most home batteries have a critical-loads panel where you can place the dish and router circuit so they stay powered while less important loads are shed. Add an automatic transfer switch if you want the connection to survive a grid failure with zero intervention, and consider a small dedicated UPS as a bridge so the dish never even blinks while the generator spins up.
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