s/cathiedwoodSEMI CHARGING•May 1
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Tesla Semi charging now works off standard 480V 200A feed
Charging a Tesla Semi no longer needs a 1.2 MW Megacharger buildout to get started. The new 125 kW “Basecharger” is built for depot and overnight use, with integrated power electronics and no separate AC‑to‑DC cabinet.
It runs off a standard 480V 200A commercial feed, and up to three units can share 125 kVA on one breaker. That shifts Semi charging closer to installing a large wall charger than building custom high-power infrastructure, cutting install complexity and opening the door for smaller depots to deploy before Megacharger sites are in place.
It runs off a standard 480V 200A commercial feed, and up to three units can share 125 kVA on one breaker. That shifts Semi charging closer to installing a large wall charger than building custom high-power infrastructure, cutting install complexity and opening the door for smaller depots to deploy before Megacharger sites are in place.
Timeline2
Apr 17
Tesla Semi driving impressions and product discussion resurfaced as broader context around the truck's 2026 rollout.
May 1
Tesla Charging announced the 125 kW Basecharger for longer dwell times and overnight Semi charging, with integrated power electronics and support for up to three units on one breaker.
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May 1