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Q&A · Off-Grid

What battery life can I expect from my setup with Starlink?

April 6, 2026

Quick Answer

Battery life for a Starlink setup depends on various factors, including the size of the dish, power consumption, and the type and size of the battery. A typical setup with a standard Starlink dish and moderate power consumption can expect 2-10 days of battery life, assuming a 5 kWh battery bank.

Power consumption for a Starlink setup is relatively low. A standard Starlink dish consumes around 20-30 watts of power when transmitting, and around 10-20 watts when receiving. Additionally, the Starlink router and other peripherals consume around 10-20 watts of power. To minimize power consumption, it’s essential to use a Starlink-compatible router and to keep the dish and router in a shaded area to prevent overheating.

Sizing Your Battery Bank

When sizing your battery bank, it’s essential to consider the daily power consumption of your Starlink setup, as well as other appliances you plan to power. A general rule of thumb is to size your battery bank to provide at least 2-3 days of backup power. For a small off-grid home, a 5 kWh battery bank can be a good starting point. However, if you have a larger home or plan to power multiple appliances, you may need a larger battery bank.

The placement of your Starlink dish can significantly impact your battery life. Ideally, the dish should be placed in a location that provides a clear view of the southern sky, with minimal obstructions. A dish placed in a shaded area or with a clear view of the horizon can experience up to 20% better signal strength. Additionally, using a dish with a high-gain antenna can improve signal strength and reduce power consumption.

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