For nearly the past 10 years, I've found that the Kirkland brand batteries leak without fail. Doesn't matter what size, they all leak. I can't wait for them to find a new
Batteries | Costco
Duracell C Alkaline Batteries, 14-count | Costco
Energizer Recharge Plus Combo with Case, 6 AA and 4 AAA NiMH Batteries | Costco
Energizer Rechargeable 2300 mAH AA Batteries, 16-pack | Costco