Replacement batteries for 2004 GMC Sierra Hybrid?...

[BretD04GMC]

out of curiosity, do you actually see any better MPG with that hybrid? or less fuel consumption?

Minimal increase in MPG. Nothing significant. It's essentially a regular full size truck with an autostart/stop function and the generator ability. I wasn't expecting any huge MPG gains when I bought the truck. What appealed to me was the generator capability.

 

Also, it was well equipped with only 6,000k on it. Initially it was a GM fleet vehicle and my local dealership bought it at auction after GM was done with it. So, it was basically an "almost new" truck and I got it for around $10k less than what it would have cost were it brand new.

 

All in all, it's been a really reliable truck and I've been really happy with it.

[Pfffttt]

https://4xspower.com/product/d1400/

 

GM uses three 14V 2400A sealed AGM batteries - the exact ones in the above link for less than $400 each; so less than $1200 total.

 

Just disconnect and toss the old ones in your local pond next to your GM Chevy dealer  and plug in the new ones. Done.