Still having Battery problems
Submitted: Saturday, Oct 25, 2003 at 17:24
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Jimmy
Hi I posted earlier in the week regarding battery /alternator problems
After following some of the advise I dont think the real problem is the alternator although it is probably it is on its way out. I measure 14v across a brand new battery at about 1500rpm. 12.5v motor not running. I measured the current draw with the ignition off and its still drawing 2.14 amps. I pulled the fuses one by one and the only one to make a difference was the fuse controlling the clock but that only makes a difference of bugger all. Any advice please on where to go from here?
Could the alternator be sucking the charge back out through shorted windings or something.....
Thanks Jim
Reply By: joc45 - Saturday, Oct 25, 2003 at 17:55
Saturday, Oct 25, 2003 at 17:55
I take it you don't have a CB/HF or other device wired directly to the battery.
Also try unplugging any relays. There may be an unfused circuit.
Prove the alternator by removing the leads from that (the output lead and any regulator control lead).
Also there may be some leakage in the starter solenoid (carbon dust?). These are usually unfused, or there is a very heavy fuse near the battery.
If it's a diesel, there may be a heavy fuse feeding the control box/relay for the glow plugs. These heavy fuses are often located near the battery,
well away from the general fuses.
Gerry
AnswerID:
35093
Reply By: Mickl - Saturday, Oct 25, 2003 at 20:05
Saturday, Oct 25, 2003 at 20:05
Sounds like the alternator is charging fine. You can also current
test your alternator. Put your meter in series with the alternators output. Turn on all the factory fit electricals (high beams,demister,fan etc...) let them run for a minute or two( to reduce the charge on the battery and apply load). Start the engine and run at 2000 to 2500 rpm, your ammeter should read approx 75% of the alternators rating (stamped on its body. ie; 14/80 means 14 volts, 80 amps)
AnswerID:
35100