A quick-reference glossary for terms that show up constantly in charger specs and reviews but are rarely explained plainly.
kW vs kWh
kW measures charging power (rate); kWh measures total energy delivered over time — a 50kW charger running for 30 minutes delivers 25kWh.
State of Charge (SoC)
The EV equivalent of a battery percentage — how full the pack is relative to its usable capacity.
Onboard Charger (OBC)
The component inside the vehicle that converts AC power from Level 1/2 charging into DC power the battery can store.
Charging Curve
How charging speed changes as the battery fills — fast in the middle range, slower near empty and near full.