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There is no single electricity amount for charging every Tesla. The energy needed depends on the vehicle’s model and trim and on how much charge you add: a partial top-up is not the same as a full refill. To estimate a specific session, identify the Tesla and the starting and ending charge levels, then express the energy delivered in kilowatt-hours (kWh). Tesla’s official pages do not publish one universal full-charge kWh figure for its lineup.
What determines how many kWh a Tesla charge uses?
The question “How many kWh does a Tesla use to charge?” needs two details: the vehicle configuration and the charge interval. A charge from a low battery level to a higher one requires a different amount of energy than a smaller top-up, and model and trim also matter.
For a vehicle-specific estimate, look for current usable-energy information for that exact configuration or use the kWh recorded by the vehicle or Tesla app. Tesla’s onboard-charger guidance explains that the onboard charger converts AC power into DC energy stored in the battery, and that onboard-charger capability varies among vehicles. Tesla’s published support pages do not provide a complete, comparable battery-capacity table from which to calculate a universal full-charge figure.
Do not confuse charging power with energy used
Kilowatts (kW) measure the rate at which a charger can deliver power. Kilowatt-hours (kWh) measure the quantity of energy delivered over a charging session. A charger’s kW rating, therefore, does not tell you how many kWh a particular Tesla needs for a full or partial charge.
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- COMPATIBILITY: Wall Connector is compatible with all Tesla models: Model S, Model 3, Model X and Model Y.
- CHARGING SPEED: Up to 44 miles of range per hour of charge, with up to 11.5 kW / 48 amp output, depending on Tesla model and breaker size.
- CONVENIENCE: Indoor or outdoor installation with variable amperage that allows max output to be customized to an existing power supply and supports any output up to 48A. Possible max output configurations include: 48A, 40A, 32A, 24A, 16A, 12A.
- CONNECTIVITY: Connecting the Wall Connector to a local Wi-Fi network enables over-the-air firmware updates for continual product improvements and remote access control.
- POWER-SHARE: Power-share is ideal for locations that need to charge more than one Tesla at the same time. This functionality allows up to six Wall Connectors to be linked for efficient power management.
For North American Wall Connector configurations, Tesla lists example outputs from 2.8 kW up to 11.5 kW, with the maximum shown for a 60-amp circuit. The corresponding range added per hour is approximate, and some Model 3 and Model Y configurations are limited to 7.7 kW. These are charging-speed specifications, not battery-capacity figures; actual charging capability depends on the circuit and the vehicle. See Tesla’s Wall Connector information for its examples.
How to estimate what a charge costs
Once you know the energy charged from the supply, the basic cost calculation is:
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- ⚡【8X Faster Charging – Up to 40A / 9.6kWh】Charge smarter and faster with the EVDANCE Level 2 Tesla charger. Equipped with a NEMA 14-50 plug and 240V support, it delivers up to 40A current and 9.6kWh power — up to 8X faster than standard Level 1 chargers. Spend less time waiting, more time driving.
- ✅【Adjustable Charging Current – 10A to 40A】Customize your charging speed with flexible current settings (10A/16A/20A/24A/32A/40A). Simply press the “A” button to match your charging needs and home circuit capacity, preventing overloads and ensuring safe, efficient charging every time.
- ✅【Delayed Start – Save on Energy Costs】EVDANCE Level 2 EV charger includes a delayed charging function (1–12 hours). Schedule your sessions during off-peak hours to lower electricity bills and protect your vehicle battery from unnecessary strain — charging made smarter and more economical.
- ✅【Universal NACS Compatibility – For All Tesla Models】Engineered with the official NACS connector, this 40A charger works seamlessly with all Tesla models (Model Y, 3, S, X) and any EV using the North American Charging Standard (NACS). For non-NACS vehicles, simply use a J1772 adapter. One charger for all your EVs.
- ✅【Wireless Port Door Control – No Keys Needed】Our portable charger features a built-in wireless charging port door control. Just press the button on the connector to open your Tesla charging port automatically — no more fumbling with keys or buttons. Convenience at your fingertips.
Charging cost = energy charged in kWh × applicable price per kWh
For home charging, use the rate on your electricity bill and the applicable time-of-use period, if your utility has one. Tesla’s Charging Calculator uses $0.14 per kWh as an assumed national residential electricity average for its comparison. That is Tesla’s calculator assumption, not a guaranteed current rate or a substitute for your own tariff.
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- UP TO 9X FASTER CHARGING SPEED: The IYILO electric vehicle charging station delivers up to 46 miles of range per hour at 48A (11.5kW) via hardwired installation (60A breaker & licensed electrician required). Current is adjustable in 1A increments from 6A to 48A. Charges up to 9 times faster than a standard Level 1 charger
- AUTOMATIC CONNECTOR OVERHEAT PROTECTION: Worried about overheating during daily charging? The IYILO Level 2 EV Charger features an advanced NTC temperature sensor built directly into the NACS (Tesla-style) connector, enabling real-time temperature monitoring with live data displayed in the app. If the connector temperature exceeds 221°F (105°C), the system will automatically reduce charging power or completely shut off charging to prevent damage to your EV and ensure safe home charging.
- UTILITY CHARGING PROGRAM SUPPORT: IYILO is currently joining local utility EV charging programs and has been listed on several official portals, including but not limited to ComEd, PSEG (NJ), PSEG-LI, Seattle City Light, Salt River Project, Portland General Electric, Oregon DOT, and Georgia Power ect. Through these programs, you can take advantage of local policy support and incentives. Moving forward, we will continue expanding our partnerships with major utilities and public agencies.
- INTELLIGENT APP & SMART CHARGING CONTROL: The IYILO App features a smart, intuitive interface to set Time-of-Use (TOU) rates, track energy usage and cost, and manage multiple user accounts. It supports multiple charging modes, such as Scheduled charging and RFID card, while also offering OTA remote upgrades, ensuring optimal performance and longer lifespan. Note: Supports 2.4GHz WiFi only; 5GHz not supported
- COMPATIBLE WITH ALL NACS (J3400) EVS & PHEVS: The IYILO Level 2 EV Charger is designed with a native NACS connector and a 25ft heavy-duty charging cable, delivering seamless compatibility with all NACS-equipped electric vehicles and plug-in hybrid vehicles across North America. Engineered for Tesla-style charging standards, it ensures reliable daily home charging performance. Note: For J1772-equipped EVs, a compatible J1772 adapter is required (adapter not included)
At a Supercharger, the price depends on location. Tesla says billing may be per kWh or per minute, depending on the site, so check the price and billing basis shown for the charging location rather than applying a household rate. See Tesla’s Supercharging guidance.
Why charging speed and session conditions vary
A home Wall Connector is intended for routine charging, while Tesla describes Superchargers as suited to long-distance travel. Neither charging route changes the need to distinguish energy from speed, but it can affect how quickly energy is added and what it costs.
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- Dual Voltage Level 1 & 2: Charge at 120V/12A (1.44kW, 2-5 miles/hr) with the included NEMA 5-15 adapter or at 240V/16A (3.84kW, 9-12 miles/hr) with the NEMA 6-20 plug. One SEGUMA portable tesla charger gives you two charging options for everyday home charging, backup charging, and travel
- EV Charger for Tesla Vehicle-Seguma 16A mobile ev charger for tesla is specifically designed for Tesla vehicles, engineered with standardized North American Charging Standard (NACS) connector, works flawlessly with Tesla Model-Y/X/3/S/Cybe truck
- Wireless Charging Door Control-The portable mobile car charger for tesla has a button on the connector that wirelessly opens the charging port door, eliminating the need for physical keys or buttons and making charging more convenient
- Intelligent Charging-The Seguma level 1 charger offers protection against leaks, grounding, voltage issues, overcharging, and overheating. It automatically shuts off when your Tesla is fully charged. Tip: Install a home circuit breaker for extra safety
- Extended 25FT Cable-The 25-foot cable allows easy tesla charging at home or public stations. The included portable storage bag lets you take the tesla home charger anywhere, making it ideal for travel, road trips, or visits. Perfect accessory for Model Y
Tesla says Supercharging speed varies with the battery’s charge level and temperature, station use, and vehicle configuration. Charging is faster at a lower state of charge and slows as the battery fills. That makes a charger’s peak power an unreliable way to predict the duration of an entire session.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Use your own charging record for a better estimate
If you own a Tesla, Charge Stats can show energy charged and cost by charging location. You can also set the electricity rate used for home charging. Check the figures in the vehicle or app and compare them with your actual bill or the price shown at a Supercharger. Tesla explains this feature on its Charge Stats support page.
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- Charge with Confidence: ChargePoint builds reliable, flexible EV charging stations for home, business, and fleets. Get 24/7 support and access to hundreds of thousands of North American charging locations.
- Charge Smart: With the user-friendly ChargePoint Mobile App, you can control your electric car charger, manage reminders, connect to smart home devices, find stations, get data and charging info, and access the latest features. Note: WiFi is needed for certain functionalities and troubleshooting steps if connectivity issues arise.
- Vast Network: Wherever you go, ChargePoint’s network includes 274k+ stations across North America and Europe and 565k+ roaming partner stations.
- Safe & Durable: Rely on this UL-certified EV charger for safe home charging. It can be installed indoors or outdoors by an electrician and includes a cold-resistant cable.
- Fast & Powerful: This EV charger charges 9× faster than a 120V outlet, delivering up to 45 mi/hr., dependent upon your vehicle. It features a J1772 connector for all non-Tesla EVs and requires a 20A or 80A circuit. For Tesla EVs, this will require an adapter.
A useful record includes the charging location, kWh added, cost, and—when relevant—the starting and ending charge levels. Those details make future comparisons meaningful without treating one session as a universal figure for every Tesla.
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