My aspire one battery charge only to 80% please help me

[andrew30_dumas]

how can i fix my acer aspire one battery charging only to 80% please help me.How can i set this?

 

[danraies]

How old is it? After a while batteries just lose their ability to hold a charge after a while and it's not uncommon to see batteries with 3/4 of their original life after a year or so. My laptop is 8 months old and it's telling me that it charges to 83%. If you want a battery that will hold a full charge you're going to have to buy a new one.