The battery capacity reduced. To restore the capacity, please check your service options

Batteries are considered as Consumable Products and as such do degrade over time regardless of the number of Full Battery Cycles. Apple batteries are rated for 1000 Full Battery Cycles and / or 80% Capacity before needing to be replaced. The message appearing may indicated the battery can not longer supply enough Reliable Power and should check for Service Options.

Suggest, Find an Apple Authorized Service Provider in you Location and have it Evaluated

Hi valerasv,

This means there is some hardware issue with your battery, and it needs service. See your repair options here: Get Support.

Cheers,

Jack