I have 04 TL and have another battery problem. I just have this car for a year now. I replaced the stock battery on March with optima RT. This week, the battery seems want to die again. We did not use the car for 1 day and suddenly it almost does not want to start.
I am getting very frustrated now, since I cannot really depend on it.
They are lot of threads about this battery problem but i can not get the idea how to fix it. the TSB seems does not apply to 04 without Navi, some are replacing with batteries, some went to dealer since it is still under warranty.

Are they any a good suggestion or a known fixed for this issue?
Or if someone has been through this and do not have a problem anymore.
Is there any way we can turn off/disable electronic features that we don’t use, especially the Hand Free Link? I am pretty sure there is a thing that drains the battery.
Any help is appreciated.
Thanks,

sienz

 

The 3G garage TSB list is your friend:

http://www.in.honda.com/rjanisis/pubs/SB/B08-057.pdf

This may be the issue even though your TL is an 04. Something to check anyway.

http://www.in.honda.com/Rjanisis/pubs/SB/B05-013.PDF
Fuse box?

Here's one for the 04's:
http://www.in.honda.com/Rjanisis/pubs/SB/B06-013.PDF