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HUB 05 · Guides & Buying Advice

Charging a Tesla Model 3 at Home

Most Model 3s take 48 amps, but base trims charge slower — here is how to match the charger to your exact car and skip the upsell.

By Stephen V.Updated How we research
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The Tesla Model 3 charges at home over its NACS port, and most trims accept up to about 11.5 kW — a 48-amp charger. The catch worth knowing: some base rear-wheel-drive Model 3s have a lower onboard-charger limit, so a big 48-amp unit buys them nothing. Check your car's charging screen for its real AC amperage.

Like every Tesla, the Model 3 does not require Tesla-branded hardware. A native-NACS charger, or a standard J1772 charger with a J1772-to-NACS adapter, does the identical job. Match the amperage to your specific trim and you avoid paying for a circuit the car cannot use.

Check your trim before buying amperage

This is the one Model 3 detail that saves money. Long Range and Performance cars generally accept the full ~11.5 kW; some base rear-wheel-drive trims across the years have shipped with a smaller onboard charger. The car itself is the source of truth — open the charging screen while plugged in and read the maximum amps it will draw. Buy to that number, not to the marketing spec.

The charger and the adapter

For a full-speed car, a 48-amp charger on a 60-amp circuit reaches the ceiling; for a slower trim, a 32- or 40-amp unit is all it can use. A native-NACS home charger plugs straight in; otherwise a J1772 unit plus a J1772-to-NACS adapter works. A dual-voltage portable is a good travel companion for a Model 3 that lives without a garage.

Outlet and circuit

A plug-in unit needs a proper NEMA 14-50 outlet on its own circuit; a 48-amp hardwired unit needs a 60-amp breaker. Confirm the wiring with the wire size and breaker guide before you commit to an amperage.

The gear

Recommended gear for this guide

The products this guide refers to, with prices pulled live from Amazon and dated on each card.

  • LENZ LENZ J1772 → NACS Adapter

    A Tesla / NACS car using J1772 chargers

    LENZ J1772 → NACS Adapter

    A UL-2251-certified J1772-to-NACS adapter — the one a Tesla or a 2026+ NACS-port EV needs to use the huge installed base of J1772 chargers.

    $29.99Amazon
  • Lectron Lectron 40A Portable (Level 1/2)

    One charger for home and travel

    Lectron 40A Portable (Level 1/2)

    A dual-level portable with both a NEMA 14-50 and a 5-15 plug — the take-it-anywhere charger that also covers a wall outlet in a pinch.

    Check price on Amazon →

#ad · As an Amazon Associate we earn from qualifying purchases.

Questions

Frequently asked

How many amps does a Tesla Model 3 charge at?
Most Model 3 trims accept up to about 11.5 kW, which is 48 amps. Some base rear-wheel-drive cars have a lower onboard-charger limit. Your car's charging screen shows the exact maximum — buy a charger to that number.
Can I charge a Model 3 with a non-Tesla charger?
Yes. A native-NACS charger plugs in directly, and any J1772 charger works with a J1772-to-NACS adapter. Neither charges slower than Tesla's own equipment.
Is a 48-amp charger worth it for a Model 3?
Only if your trim accepts 11.5 kW. On a base car limited to a lower rate, a 48-amp unit and its 60-amp circuit add nothing over a 32- or 40-amp charger. Confirm on the charging screen first.

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We do not run a testing lab, and we do not pretend to. Where a measured number came from someone else's lab, we name them and link them. Where we could not verify something, we say so on the page rather than quietly leaving it out. Read our full method.