Batteries Not Lasting

falcon_6 · 13-05-2007, 11:10 PM

Can Some One Please Help.
I Have A 2000 Au2 Which Seems To Be Going Through Batteries.3 In The Last 6 Months.
Can Someone Offer Help?

FGII-XR6 · 13-05-2007, 11:13 PM

it is most likely the alternator ( overcharging and cooking the battery ) with the engine running and a digital multimeter check the voltage should be 13.8 to 14 volts

Umineko · 13-05-2007, 11:24 PM

Quote:

Originally Posted by au3xr6

it is most likely the alternator ( overcharging and cooking the battery ) with the engine running and a digital multimeter check the voltage should be 13.8 to 14 volts

I'd agree with that, Overcharging was a common problem with Falcon altenators, usually accompanied by and odd rotten cabbage sort of smell as the battery acid boils away

falcon_6 · 13-05-2007, 11:36 PM

My Curent Battery Has Lasted Nearly 2 Month's.
Checked The Battery While Running And Was Indicating 14.4 Volts Yesterday.
Today Indicated 14.05 Volts.the Battery I Purchased Has A Maximum Charging Voltage Of 14.8v.

falcon_6 · 13-05-2007, 11:37 PM

Is It A Simply Replacing The Regulator

FGII-XR6 · 13-05-2007, 11:47 PM

yes thats right replace the reg and you should be ok also if you are geting those reading at idle you might find it higher with a few revs onboard if the reg is cactus

Umineko · 13-05-2007, 11:54 PM

Quote:

Originally Posted by falcon_6

Is It A Simply Replacing The Regulator

The regulator is most likely at fault but it is integeral to the altenator so unless you have experiance with pulling these things apart it's going to be a replacement alternator or a session with an auto sparky. also the charge rate at idle can be misleading, you need to take the readings with the engine running about 2000 rpm to get an accurate picture of whats happening

**Mechan1k** · 14-05-2007, 08:42 AM

If you use the dah diagnostic mode as well ... you can monitor voltage while driving as well as it is display digitally in your odomoeter area.