The Battery

When I was a child I liked to make toys. 
In the beginning, I assembled many robots and ships.
After that, I made a radio and remote control tanks and cars.

Meanwhile, I was accustomed to using batteries.
It was used by even number always. I always used an even number of batteries.
So in Korea, The batteries are sold by even numbers, in Battery was packages of 2, or 4, or 6 etc.
Recently, I saw one pack containing 16 batteries.
Even though I need just one, I have to buy two batteries at least.

These days, sometimes I assemble remote control toys for my nephew.
All of these toys are made in China.
As I know the Chinese like uneven numbers.
It Uneven numbers symbolizes the positive, and the male, and lucky, so they love them.
I think Chinese companies, firms which are make many all products in the world, observe this tradition their trust.

This strong influence could change the number of packing batteries in a package (which are is produced by western companies).