Rechargeable battery with a backup

Madonna Halim

Senior Member
Arabic
The product is Microsoft GU500013 Universal Foldable Keyboard, it's written that it has " Rechargeable battery with a backup of about 3 months on a single charge". What's meant by "backup" here? It can be "used" for about 3 months?
 
  • aceofpace

    Senior Member
    English (American)
    Looking at the context it most likely means here that you can use the battery for up to 3 months after a charge.
     

    aceofpace

    Senior Member
    English (American)
    Right. Backup in essence means a "reserve" and it's clearly not used this way here.
     
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