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
ILYUSHIN Il-28
The design of the OKB Ilyushin a new frontline jet bomber with a maximum speed of 900 km/h and flight range of 2,000 km was carried out in initiative order. The aircraft, designated...
THE PLANE FOR VICTIMS OF PRESSURE OR VERY LAZY…
I think many know the situation: you come home from work - totally exhausted and again, eyes clinging to the instrument on the shelf and the "sticks" hanging on the wall since last year....