Battery Health
Also known as: Maximum Battery Capacity, Battery State of Health (SoH)
Direct Definition
The measurement of a rechargeable lithium-ion battery’s current maximum charge capacity expressed as a percentage relative to its original design capacity when brand new.
How TrueVolt Applies This Standard
TrueVolt classifies battery health into four clear tiers: 90–100% (Like New), 80–89% (Excellent), 70–79% (Acceptable), and 60–69% (Fair). Listings disclose the reported battery capacity directly.
Technical Overview & Context
As rechargeable chemical batteries undergo charge and discharge cycles, their internal chemical capacity degrades naturally. A battery at 85% maximum capacity holds 85% of the charge of a brand-new factory battery, delivering slightly less daily screen-on time between charges.