Code is good for more than batteries. Code can be used on-line or in-store. Just ask cashier to apply the code at checkout. LINK
Over Black Friday weekend PB had 35% discount code, and $30 rebate on Bosch batteries. Got a Bosch Group 48 AGM for $99, upgraded my wife's Mustang from a flooded Group 96R to AGM Group 48 with 4 year full replacement warranty.
Spent < $20 on a universal battery insulating blanket, no way to re-use the 96R sized factory insulation to cover the Group 48. Still money ahead.