... 55 to 85 0/C Lithium battery 3.6v Specifications Type :Lithium battery Dimension with tubeNominal Max. Diameter ... clocks Military electronicsJ & Y ’s single cell or battery packNormal size: AAA, AA, A,SC,C,D, ... 4/5D, N, F, etc. Others: Lithium polymer, 9V, Lithium 18650,18490... Lithium ER34615,ER34615M , ER34615H,E34615S ... worthy of your credit. PICTURES: factory pic. non rechargeable lithium ER34615