[wrenrj1]

Honda OEM Batteries suck. I went thru two of them on my 2007 up to last year.

 

[wrenrj1]

... and they apparently vary a lot: Mine lasted from May 2005 (when I bought our 2006 RL) to October 2009 (4 1/2 years). Worked for me.

My second (wait, third!) Honda battery was a Honda 100-Month battery that didn't even last four years.

ETA: I'm correcting my post above (but leaving what I said for reference) back to the fact that I've had only one replacement to the OEM battery that was replaced under warranty. The replacement battery was a Honda100-month battery that lasted less than 48 months. Both OEM and Honda 100-month batteries had bad cells. I ended up buying an Optima battery last fall. We'll see if it was worth the additional bucks, it was not cheap!