Dear, if the style doesn't mention free batteries in the link, then it doesn't come with them. You'll need to configure it yourself
The Buyer and the Seller Should Adhere to the Principles of Honesty, Credit and Friendly Negotiation, and Actively and Amicably Fulfill Their Respective Obligations. in Case of Disputes, Both Parties Should Settle Them Amicably. Both Parties Agree That the Place Where the Contract Is Performed Is the Domicile of the Seller. All Expenses Incurred Due to the Buyer Shall Be Borne by the Buyer (Including Any Form of File Transfer Fee, Lawyer Fee, Data Fee, Etc.).