TI405 - battery replacement

We have a TI405 where the battery light is flashing. I can't find any literature online about changing the PLC's battery. Has anyone doen a bettery replacement with this type of PLC?

I have never changed the batteries on TI however I have changed batteries on many other types of plc, most will hold the program for about 10 mins while the battery is changed. I change the battery with the power applied & although some plc manufacturers warn against this I have never had any problems.
I suggest you back up the plc memory before hand however.

I'm pretty sure the Siemens TI405 is the same as the Koyo DL405 from Automation Direct.

If it is, battery replacement is explained on page 9-2 (PDF page 2) in this manual:

http://www.automationdirect.com/static/manuals/d4user/ch9.pdf



-Eric