Practical guide / Interval Atlas
Test time-lapse battery runtime before leaving the camera
A repeatable field test for turning one full charge into a realistic multi-day power plan.
Test the mode you will actually use
Set the interval, exposure, screen behavior, focus mode and connected accessories you expect to use. Start with a fully charged battery and record the ambient temperature. Run long enough to get a meaningful result, then write down elapsed shooting time and the remaining battery state. A short test that barely moves the battery indicator cannot establish a full runtime.
Keep the conditions beside the number
Battery endurance changes with conditions. Nikon’s battery-life notes list battery condition, temperature, interval and time spent with menus displayed among the factors. Record those alongside the tested hours. If you use a screen, wireless connection or an external accessory in the project, include it in the test.
Do not borrow a different test result
A manufacturer’s still-photo shot count or video-recording duration may use a different mode. Use a time-lapse figure from the manual when it matches your settings. Nikon’s time-lapse instructions also recommend a fully charged battery or an external power source to avoid interruption. A test in your actual capture mode is more relevant than converting an unrelated shot count into hours.
Turn the test into a schedule
Enter the measured runtime, daily active hours and number of shooting days in the battery planner. Keep the reserve editable. The output is full-charge equivalents, not a count of physical packs; recharge time and the timing of battery swaps decide how many packs must be on site. For a critical installation, repeat the test at a comparable temperature and leave a separate fallback power plan.
Put the method to work
Turn a battery runtime you measured in the intended shooting mode into a charge budget for a long project.
Open the calculator →Before you use the result
Check the measurement units, use the actual materials or equipment in your project, and test a small example. The linked calculator shows its assumptions and provides a worksheet you can keep with your project notes.
These examples were prepared for this site. They are not a report of a laboratory test or a product certification.