Understanding Your EV Battery Health: SOH & SOC Explained

Understanding Your EV Battery Health: SOH & SOC Explained

Demystifying EV Battery Health

Electric vehicle batteries are the heart of your EV. Understanding key metrics like SOH (State of Health) and SOC (State of Charge) helps you maintain battery performance and plan for the future.

What is SOH (State of Health)?

SOH measures your batterys current capacity compared to when it was new. A battery with 90% SOH can hold 90% of its original charge. Over time, all EV batteries experience some degradation. Regular SOH checks help you track this decline.

What is SOC (State of Charge)?

SOC is simply how much charge your battery currently holds, shown as a percentage. Think of it like a fuel gauge for your battery. A healthy battery should show consistent SOC readings that match your actual driving range.

How TopTekk Battery Scanners Help

The TopTekk TTB030 and TTB031 Power Battery Scanners provide detailed SOH and SOC readings for popular EV brands including BYD, MG, Tesla, NIO, and XPeng. Our free mobile app displays battery health data in an easy-to-read dashboard.

Key Features

  • Deep battery diagnostics with SOH/SOC monitoring
  • Fault reading and clearing for battery systems
  • No subscription required - free app updates for life
  • Compatible with BYD, MG, Tesla, and more

When to Check Your Battery Health

  • Before purchasing a used EV
  • Every 10,000 km for maintenance tracking
  • If you notice reduced driving range
  • After fast charging sessions