Batteries LR45

LR45

— the LR index denotes compact 1.5 V “coin” batteries made using alkaline technology. These are simpler and cheaper analogues of silver-oxide cells of the SR series (it is also “three hundredth”, a typical example is size 357, it is also SR44). LR batteries have a relatively low capacity, they are prone to a rapid voltage drop as they are discharged, and they do not handle high load currents well. On the other hand, such cells are noticeably cheaper than silver-oxide ones, and for devices with an even low energy consumption, they are the best option.

Specifically, LR45 batteries are 9.5mm in diameter and 4.2mm thick. They may also be marked as V9GA, AG9, G9 and GP94A. Silver-oxide analogues — 394 (low discharge current) and 380 (high current).