State Of Charge (SoC)
State of charge shows how full the high-voltage battery is, usually as a percentage.
What is State Of Charge (SoC)?
The display uses a buffer at the top and bottom to protect the battery. Many manufacturers suggest charging to about 80 % for daily use. State of health is different: it shows how much capacity remains compared to new. Lithium iron phosphate (LFP) batteries are often charged to 100 % regularly because the manufacturer recommends it for accurate estimation.
How it works
The battery management system estimates it from voltage, current and temperature.
Why it matters for your car
Leaving a battery at 100 % or near 0 % for long periods is not ideal. Range estimates use state of charge and recent consumption.
Other terms
- AdBlue Heater
- AGM Battery
- Anti-seize Compound
- Build Date (Production Date)
- ESP / Stability Control Warning Light
- Far-Side (Centre) Airbag
- Ground Clearance
- Jacking Points
- Key Fob Battery
- Lane Keeping Assist
- Load Index
- Low Washer Fluid Warning
- Number Plate Light (Licence Plate Lamp)
- Overdrive Unit
- Permanent Magnet Synchronous Motor (PMSM)
- Rescue Sheet (EV Rescue Card)
- Residual Value
- Service Interval
- Two-bucket Wash Method
- Vinyl Wrap (Car Wrapping)