Toys R Us: Buy One Get One Free Store Brand Batteries

Through midnight only, you can get Toys R Us batteries on sale buy one get one free.  They are also on sale about 33% off.  So you could get two 20ct packs of AA or AAA bateries for $6.99. Pick them up in store to save on shipping,

Has anyone ever bought these?  Are they any good?

Thanks Coupon Cravings!