which 12v Optima battery is Nissan's 999M1-NB34C?
 

My 2009 NAH with 189,000 miles has a dead battery, OEM Panasonic, among other issues.

I'm trying to find the factory recommended replacement Optima battery, Nissan part # 999M1-NB34C, as stated in the TSB NTB08-044a.

The dealerships around me are asking around $320-$399 so I'm trying to source one outside, but having trouble finding the correct Optima battery.

I called Optima and the CSR told me that they don't have one specifically for my 2009 NAH?!

I know there are other AGM batteries for this car but I figure might as try to stay with Nissan's recommendation, which has holes for a vent tube as it is with the current OEM Panasonic.

Any input will be greatly appreciated!

Re: which 12v Optima battery is Nissan's 999M1-NB34C?
 

For those of you who have replaced the 12v battery with an AGM type, which did you end up installing?
With the vent tube installed or not?

Re: which 12v Optima battery is Nissan's 999M1-NB34C?
 

Short version: Optima makes a battery they will only sell through Nissan: The Optima 34C (Nissan Part #: 999MI-NB34C )

Unbelievably, we are now in 2021 and this is STILL an issue (monopolized battery supply). I bought my Hybrid Altima in 2008 new. Recently, in March 2021, the electronics wouldn't fire up when the weather was 20f (-10c). I checked the 12v battery in the trunk in the right panel, and there was an Optima 34C (Note: Nissan lists this as part# 999MI-NB34C ). In short, this is an especially adapted Optima battery made specifically for Nissan, as it is "vented" (i.e., there is a hole in the side to connect your vent hose allowing the release excess hydrogen that could occur under abnormal charging situations.).

I noticed many individuals claiming they simply installed a comparable AGM battery (Redtop, etc), believing that it is sealed and won't vent. While it's true they are sealed, they can still vent. However, I went to an electric vehicle garage that also was a "Battery Experts" franchise and the recommended the "Advance 34-boltadv" AGM. No vent. While I know there is a risk, I assume it is extremely low and therefore a reasonable safe, yet nonetheless expensive, option.