Myth: Rechargeable batteries always need to be fully charged and discharged, otherwise they lose capacity. Fact: New generation rechargeable batteries keep their capacity for at least 500 charges, no matter to what percentage they are charged or discharged. Myth: Rechargeable batteries need to be charged before you use them for the first time.
The pack starts charging when none of the cells are fully discharged and ends when Cell 4 reaches the charge cutoff voltage. The charged ampere-hours of 6.226 A h is no longer the pack capacity.
Each charge cycle, which spans from being fully charged to fully discharged and then fully recharged, cumulatively impacts the electrochemical integrity of the battery. Inconsistent or partial charge cycles can lead to premature capacity loss, rendering the batteries less capable of sustaining a full charge.
Myth: Rechargeable batteries drain quickly when not in use. Fact: New generation rechargeable batteries are built with a very low self-discharge rate, meaning they can stay up to 80% charged after 12 months when left idle. Myth: Rechargeable batteries always need to be fully charged and discharged, otherwise they lose capacity.
This is because drivers always charge the packs before they are empty, and they prefer battery packs in the fully charged state. It means CCVCs in EVs never start at the fully discharged state but usually end at the fully charged state.
You can see from the somewhat deceptive chart that a fully charged battery will have more charge after storage than a partially charged one (40% of 75% versus 100% of 60%), even though the fully charged one initially discharges faster, percentage wise. You're talking about the charge remaining after storage.