What's the bmw e46 m3 battery size?

The 2005 BMW e46 M3 has a battery size listed as Group size H6 with 730 cold cranking amps. Prices for the battery will vary depending on the brand and quality but they range from $170 - $220. The battery will be housed on the passenger side of Your trunk compartment under the black plastic tray. You will have to remove the tray to gain access to the battery. If You do need to jump start the car there will be terminals at the front of the vehicle so You can and it makes it easier to fit the battery cables to the terminals there. If You aren't sure Your battery is dead or just needs to be charged You can go to Your local auto parts store and they can test it to see if can still retain power.