For Tesla owners

Tesla Phantom Drain & Vampire Drain Tracker

See exactly how fast your Tesla loses charge while parked — every idle period ranked by drain rate, with a live rate while the car is currently sitting idle. Free during Amped's beta.

Every idle period, not just a headline number

Amped tracks each time your Tesla sits parked and not charging as its own idle period, with the state-of-charge lost and how long it lasted — built from the car's own telemetry stream.

Ranked by drain rate, worst first

Idle periods are ranked by percent-of-charge-lost-per-day, so the parking spot or the night that actually cost you the most charge is easy to find.

A trend across the days you pick

A daily drain chart shows the rate over any date range, with the worst day in the range highlighted.

Live while the car is idling right now

If your Tesla is currently parked and not charging, Amped shows that period's drain rate live, updating as it continues.

No rate from a few minutes of noise

An idle period under an hour doesn't get a rate at all — extrapolating a %/day figure from a brief stop would be a wild guess, not a measurement, so Amped waits for enough time to have passed.

Free while Amped is in beta

No subscription and no trial countdown — phantom drain tracking is included at no cost for the whole beta.

FAQ

What counts as phantom drain (vampire drain) in Amped?

Any period your Tesla is parked and not charging — Amped records the state-of-charge lost and the duration as an idle period, built from the car's own telemetry stream.

How is the drain rate calculated?

Percent of charge lost divided by elapsed days, so idle periods of different lengths are comparable. Periods under one hour are left unrated rather than extrapolated into a misleading rate.

Can I see drain from a period that started but has not ended?

Yes — a currently open idle period shows its drain rate live, using the elapsed time so far, and is marked as ongoing in the worst-offenders list.

What does it cost to use?

Free while Amped is in beta.

Numbers beat vibes.

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