This offer is valid from 16/12/17 until 31/12/17. This offer entitles you to a free four pack of Halfords Essentials AA or AAA batteries (711545 / 711537). The voucher can only be redeemed once. The customer must show a live voucher code from the app on their phone screen in-store. This offer is not available with any other voucher offer, colleague discount or account card offer. Available through all Halfords retail stores, excludes Halfords Autocentre’s and Cycle Republic stores. Subject to stock availability at individual Halfords retail stores, when they’re gone, they’re gone. Image is for illustrative purposes only. Redemption method – in-store only.