18Grids Battery Storage Case Holder Organizer for AA AAA 18 Slots Portable Box

18 foam slots (AA/AAA) + strip slot for button batteries. 3 Portable Design. 1 Compact & Durable. 1 × Battery Storage Case. No More Battery Chaos. 8×11×6cm hard plastic case with dual snap-lock lids and sponge padding.

eBay