This deal has been extended through 12/29/2019 for the rebate at least but not sure about the 25% off will continue but historically this seems like an ongoing sale with little change (Blackfriday deals).
Pep boys has Bosh and Champion AGM batteries @ 25% discount plus $40 Rebate (dont forget cashback) and these have 48 month replacement which is really good and the AGM batteries are very good. My cars make and model was not available at Costco else I'd compare with theirs.
November-December Rebate( Nov 25th - Dec 29th):http://img.rewardpromo.com/1/7703/22516.pdf
October-January Rebate( Oct 28th - Nov 24th):http://img.rewardpromo.com/1/7664/22335.pdf
September - October Rebate( Sept 30-Oct27): http://img.rewardpromo.com/1/7616/22111.pdf
Old Thread (Thanks for Tommy): https://slickdeals.net/f/13355986-agm-battery-25-off-and-40-rebate-pep-boys?v=1&src=SiteSearch