loll vs recharge one's batteries

loll

verb
  • To act lazily or indolently while reclining; to lean; to lie at ease. 

  • To let (the tongue) hang from the mouth in this way. 

  • To hang extended from the mouth, like the tongue of an animal heated from exertion. 

recharge one's batteries

verb
  • To recover mentally by taking a break or engaging in a relaxing activity. 

How often have the words loll and recharge one's batteries occurred in a corpus of books? (source: Google Ngram Viewer )