View Single Post
      07-31-2012, 10:42 AM   #141
New Member

Drives: 07 328i Coupe, Alpine White
Join Date: Apr 2012
Location: Tampa Bay Florida

iTrader: (0)

e92 battery swap

Just swapped my wife's battery last night with a Walmart special H8 Maxx battery in her 07 328i. The H8 is an exact match to the OEM battery in size, terminals, vent ports, etc. Has a 730cc rating. I used an old battery from my ZX10R to jump the terminal under the hood to preserve her radio presets and time. When I swapped my Nissan Titan battery earlier this year the TPMS sensors needed to be reset after the swap, so I also wanted to prevent something like this with her 328. The inspection LED was not working on her OEM battery, but the car has been starting slow during last winter and after sitting for a week or so, so I figured a cell was bad, etc. Now it starts up great. I'm also opting out of resetting the ECU for the new battery, I'll report back over time to comment on the battery's performance. Worst case, I can get a new battery if it fails within 3 years as Walmart has a 3yr replacement warranty. Cost me $109.