This Is our version of the PX21 Battery, used in a number of industrial PLC Equipment and Photographic Equipment (We would be interested if you can email us with your model information for our database!)
This battery is also known as:
It is often used and an alternative to the obsolete mercury equivalent TR133N, it is recognized that this Alkaline version operates at 4.5V as oposed to the 4.05V of the Mercury, in most cases this does not cause a problem however it is a case of what are the other options available.
These are now also difficult to obtain and we can still make them whilst stocks of the PC1A cell are still available. Once these have gone we will remove this item. Why not take the opportunity to buy an extra battery for future use. These are a replacement for the 6135-99-923-2492,and BA--1098/Ualso used in a guitar special effects signal processor called the Digitech GSP21 Pro.