Why does a new battery show only three bars after being fully charged?

[MacCalvin]

There are several reasons why a new battery shows only three bars after being fully charged: Battery self-discharge Some owners do not ride their electric vehicles immediately after fully charging them, but leave them parked for several days. However, electric vehicle batteries naturally self-discharge, so the longer they are left unused, the more power is lost, and the faster the battery voltage drops. Therefore, when riders start using the vehicle again, they may notice a sudden drop in power when accelerating. When the electric vehicle is used infrequently, it is essential to fully charge the battery and then recharge it every 10 days to prevent "battery drain" due to prolonged inactivity. Failure to charge the battery promptly Waiting until the battery is almost depleted before charging it can easily lead to the battery frequently being in a "hungry" state. If the battery is not fully charged, it will naturally lose power quickly when accelerating. It is recommended to charge the electric vehicle battery after using about 70% of its power, as this helps extend the battery's lifespan.