Hi JO, this product should not need batteries replaced as it is a solar powered product that includes rechargeable batteries. In direct sunight, the rechargeable batteries should charge and power the lantern during the evening hours. If there is anything we can assist you with (e.g. troubleshooting) please contact our Customer Service @ (813) 343-5775 Mon-Fri 9am-6pm EST
email: customerservice@smartlivinghg.com