← All features
⚡ Charging

Real Charging Costs

Track every cent you spend charging your Tesla — at home, at a Supercharger, or anywhere else — using your actual Australian electricity tariff, not a rough estimate.

9:41●●●
Charging ⚡ Active
72%
BATTERY
45.2 kWh
ADDED
$12.66
COST
1h 22m
TIME
RECENT SESSIONS
Home · Last night
$8.12
Supercharger · Mon
$14.50
Home · Sunday
$7.44

How it works

Costs calculated with Australian precision

1
Set your tariff once

Enter your electricity retailer and rate in Settings. VoltMate supports flat-rate, peak/off-peak, and time-of-use tariffs. Most popular Australian retailers pre-loaded.

2
Sessions detected automatically

When your Tesla starts charging, VoltMate opens a session. It records kWh added, charger type, location, and duration — no manual input needed.

3
Real cost, not estimates

Cost is calculated using the energy added multiplied by your actual tariff rate, adjusted for time-of-day if you're on a TOU plan. Accurate to the cent.

What you get

Know exactly what you're spending

🏠
Home charging cost

Separate out what your Tesla is adding to your electricity bill each month — down to the session.

Supercharger sessions

Supercharger sessions logged with kWh added and Tesla's per-kWh rate automatically applied.

📈
Monthly summaries

See your total charging spend by month and compare trends — useful for budgeting and FBT calculations.

🔢
Cost per kilometre

VoltMate automatically calculates your running cost per km — the ATO-required figure for logbook claims.

Stop guessing. Start knowing.

Track every charging dollar with Australian tariff accuracy.

← All features ⬇ Download VoltMate