Demo · Proof of Concept

This is a demonstration tool for exploring battery-storage sizing for film & TV lighting rigs. It produces rough planning estimates only.

It is not a finished product and should not be used as the basis for real power planning, rental commitments, or on-set decisions. Manufacturer figures vary, inrush data is largely unpublished, and real loads must be confirmed with a qualified technician and a true-RMS power analyzer.

Smart Import — paste your rig

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Paste a fixture list or a plain-English description. Quantities like 2x, (4), "a couple of", "four" are detected and each line is matched to the closest fixture. Review & correct below before adding.

No list handy? Load a sample paragraph

TETHRA SYSTEMS

Lighting Battery Sizer · DEMO

⧉ Smart Import

paste a rig

Paste a fixture list or a plain-English description — quantities (2x, "a couple of", "four") and models are auto-detected, with a review step before anything lands in your rig.

Fixture Library

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Wattage = maximum AC draw (HMI = ballast input VA). Click a fixture to add it, or use Smart Import above to paste a whole rig at once.

Your Lighting Rig

0 fixtures
Battery scope
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Advanced assumptions

efficiency · DoD · inrush
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Strike inrush × per fixture type drives the surge requirement (worst single fixture). LED ≈1×; electronic HMI ballasts ~2× (older magnetic 4–8×); cold tungsten 10–15× for ~100 ms.

Fixture type in rigInrush ×

Power & Energy Requirement

What to Look For When You Rent

Ask the rental house for a battery — or a combination of units — that meets all of these minimums:

Candidate Batteries

Sizing method & assumptions ▾

Tethra Systems · demonstration prototype. Planning estimates only — verify against a true-RMS power analyzer on the actual fixture package before committing a rental.