AA cells can be installed in a socket of larger diameter than itself, if you wrap it in several layers of paper, foam or any other available material suitable for this purpose. For example, a galvanic cell AAA can be installed in a standard socket AA.
If the length of the socket is greater than the length of a galvanic cell between their respective contacts should be inserted in a folded several times a piece of aluminum foil.
Recommend to read
THE SAFETY GUARANTEE
All good thermos, but only gentle — all because of the bulb: very fragile, especially filled. To protect the bulb, without disturbing its properties, will help foam ring made of...
What additional parts are recommended to install on the bike
The purchase of a Bicycle is a great idea. The bike trip that would depend a great support the body and good mood. The standard set is often not enough for comfortable and safe drive, so...