wont start???? electrical

[redrider69]

ok here it is my battery a brand new battery goes dead in like a week or so and now when the battery is charged it will make a buzzing sound but when i jump it or roll start it starts up fine why wont it start off the battery but it will start when i jump it thnks

[Plante400]

most likely you have a bad connection somwhere..
check all your wires. unplug them and replug them in.. also clean the battery terminals (dont touch the pos and neg wired while doing this haha)
and if u have any powder coat done.. make sure u have a gopod connection between the subframe and frame..im not really sure if the ground on a 300ex is on the subframe so that part might not be a problem

anyways.. just check all wires and one more though,,
your celinoid may of craped the bed good luck

[redrider69]

thanks man its been rainin so im gonna go thru all the electrical stuff sometime and hopefully it will work out