Bought the The Battery Organizer Storage Case  from Amazon for US$14.55 (S$20).
They do ship directly to Singapore for an additional US$9.28 (S$13). However, I opt to ship it to my freight forwarder, HopShopGo  as I have other packages there.
The battery storage itself is made of plastic, and it comes with a hinged transparent cover.
The edges of the box is a little rough, and hence the edges are sharp. I find the box cheaply made. But I guess given the price; it is ok.
It is bundled with a removable battery tester, and that is my main reason for getting it.
It is able to store 93 batteries of various sizes:
- 45x AA Batteries
- 25x AAA Batteries
- 8x C Batteries
- 6x D Batteries
- 4x 9 Volt Batteries
- 5x flat batteries
I do have a lot of batteries especially AA batteries, thanks to the generosity of many media drop from Eneloop .