Bort
1
I suspect thats whats inside this battery, its for a wireless doorbell and is called a 476A battery on mine
http://www.dx.com/p/gp-476a-6v-800mah-alkaline-batteries-4pcs-148646
Helios1
(Helios-)
2
Yep. Its also called 4LR44

4 SR44 has a higher capacity,should last longer.
Bort
3
excellent photo, i will order the LR44s at a fraction of the price right away
Helios1
(Helios-)
4
Do note that the positive end on a LR44 is flat. Might need a folded bit of metal to make contact in the device.
4 SR44 have a higher capacity, should last longer.