Battery Life Extension Formula:
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The Jackery Battery Life Extender calculator estimates how much additional runtime you can get by adding an external battery pack to your Jackery power station. It calculates the extended operation time based on your original battery life, extender capacity, and power load.
The calculator uses the following equation:
Where:
Explanation: The equation calculates how much additional runtime the extender battery provides by dividing its capacity by the power draw of your devices.
Details: Accurate battery life estimation is crucial for planning outdoor activities, emergency preparedness, and ensuring you have enough power for your needs.
Tips: Enter your original battery life in hours, extender capacity in watt-hours (Wh), and device load in watts (W). All values must be positive numbers, with load greater than zero.
Q1: Where can I find my Jackery's original battery life?
A: Check your product specifications or manual. This is typically the runtime at a specific load (e.g., 100W).
Q2: How do I determine my device's power load?
A: Check the device's label, manual, or use a watt meter. Some devices list power in amps - multiply by voltage to get watts.
Q3: Does this account for efficiency losses?
A: This provides an estimate. Actual runtime may be slightly less due to conversion inefficiencies (typically 85-90% efficient).
Q4: Can I use this for multiple devices?
A: Yes, but use the total combined wattage of all devices you'll be running simultaneously.
Q5: How accurate is this calculation?
A: It provides a good estimate for constant loads. For variable loads, results may vary based on usage patterns.