BATTERY INSERT [ADAPTER A] for TTL PRISM KIEV 88 + 10 BATTERIES 1.5V LR44. - If you have the prism (PHOTO C), you don't need any adapter, only 1.5V LR44 batteries. This adapter can use 4 button batteries 1.5 V (LR44, A76, G13, S76, L1154, 357. ) and 1.4 V (PR44, 675. ).