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Unread 01-18-2012, 08:19 PM   #31
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Default Re: 2004 Precedent with new batteries going slow

ok so at least now we are getting somewhere......if you hook anything back up just one thing at a time if you can.....we can isolate it further and then figure out why, if all you did was disconnect the blue wire then its in the circuit somewhere.....maybe a bare rubbing wire somewhere ??? may have to trace that from batteries backwards......................................... ....
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Unread 01-18-2012, 08:25 PM   #32
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Default Re: 2004 Precedent with new batteries going slow

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Originally Posted by Blanko View Post
UPDATE : I changed the motor to a PQ Bandit. Played golf today and got the usual.....18 holes and I almost did not make it home.

Measured voltages:
Battery 1 (which has blue accessory and negative back to controller) - 9.86V
Battery 2 (nothing attached just in series) - 12.10V
Battery 3 (nothing attached just in series and is a brand new battery) - 11.96V
Battery 4 (has positive, accessory and charger positive attached) - 10.41V

Has it something to do with the accessories or the charger cables?
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Originally Posted by Blanko View Post
Yes no problem. And our course is VERY hilly. It went up hills better than I have ever experienced - probably due to the PQ motor.

Battery light came on when I got home but went off again. At the voltages above.
I measured voltages all way round.

Also at this time of year - temp was 37o (yes Im a hardy sole) so probably not expecting much more than a solid 18 holes with no slow down.

Now I did two things: 1) I changed the battery #4 (as it previously read 9+V after 18 holes) to another battery that was checked by a dealer and said to be good.
2) I also disconnected the accessories as you advised. Not very Design Of Experiments like to do this but one or other solved the problem.

I am now going to switch back the other battery and see if same result.

The amazing thing is that before this when I put the cart on charge it charged for 7-8 hrs. When I disconnected the accessories it charged for 14 hours
I assume you just disconnected the blue wire from battery #4, correct? I also see you list another battery (possibly #1) with an accessory attached, is this correct?

I wouldn't even bother putting the other battery back in but if you are just curious I would charge it up by itself with a standard 12v charger before installing it a plugging the charger in as that battery is dead. I would also be concerned with the battery that reads 10.21v. If you could, just leave it the way it is and charge the batteries back up and let it rest for 12 hours and take a reading of each battery and the whole pack. Then drive it for a while and take readings again. Post results.
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Unread 01-18-2012, 08:25 PM   #33
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Default Re: 2004 Precedent with new batteries going slow

just for giggles, why not remove the bulbs from the brake lights and reconnect as was- you did say they havent worked for a while. Maybe the switch on park brake next, as it would likely be engaged while charging...
Just my 2 cents.
Good luck and keep us posted
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Unread 01-19-2012, 07:26 AM   #34
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Default Re: 2004 Precedent with new batteries going slow

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Originally Posted by erict View Post
I assume you just disconnected the blue wire from battery #4, correct? I also see you list another battery (possibly #1) with an accessory attached, is this correct?

I wouldn't even bother putting the other battery back in but if you are just curious I would charge it up by itself with a standard 12v charger before installing it a plugging the charger in as that battery is dead. I would also be concerned with the battery that reads 10.21v. If you could, just leave it the way it is and charge the batteries back up and let it rest for 12 hours and take a reading of each battery and the whole pack. Then drive it for a while and take readings again. Post results.
Nothing attached to battery #1 other rather receptical charger (red wire). I measured all after full charge. After full charge battery 1-3 all read approx 13.2 and Battery 4 reads 12.7 (which is why I swapped it out in first place). I measured each battery through the round yesterday and 1-4 all went down at same rate with 4 ending up at about 11.9 and others at 12.3
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Unread 01-19-2012, 07:29 AM   #35
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Default Re: 2004 Precedent with new batteries going slow

Quote:
Originally Posted by Owen View Post
just for giggles, why not remove the bulbs from the brake lights and reconnect as was- you did say they havent worked for a while. Maybe the switch on park brake next, as it would likely be engaged while charging...
Just my 2 cents.
Good luck and keep us posted
Owen- Im gonna check that and all the wiring. Before I do that I want all batteries at +13 after charge so I have a strong pack. I am working on that #4 now to see if there is an issue due to the 0.5v lower voltage. Maybe will swap other battery back in once its charged - as it may not have been the root cause anyway.

Once thats done will move to the electrics as something in there is causing the drain as the change yesterday was most notable.
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Unread 01-19-2012, 07:42 AM   #36
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Default Re: 2004 Precedent with new batteries going slow

Im having a hard time following the different battery positions and whats wired to them. Are the lights powered from 1 batt? or is there a voltage reducer somewhere?
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Unread 01-19-2012, 08:56 AM   #37
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Default Re: 2004 Precedent with new batteries going slow

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Im having a hard time following the different battery positions and whats wired to them. Are the lights powered from 1 batt? or is there a voltage reducer somewhere?
Lights are connected to #4 - there is no voltage reducer.

I originally confused everyone by stating the battery numbers backwards.
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Unread 01-19-2012, 09:09 AM   #38
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Default Re: 2004 Precedent with new batteries going slow

Was batt #3 or #4 replaced? Was it a used or new battery?
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Unread 01-19-2012, 09:23 AM   #39
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Default Re: 2004 Precedent with new batteries going slow

#4. I originally replaced #2 with a new battery as it was 0.5V lower than other 3 after fill charge. But it made no difference. The old battery was good. When I say old it was March 2011. So I took that battery and replaced #4 (also March 2011) with it.

At same time disconnected accessories so either it was the battery change or the accessories disconnect that solved the problem. But the battery i put into position #4 isstill 0.5V short of the others on charge. So I think I will charge up the other battery and swap it out and see if it is the battery or the accessories causing the drain
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Unread 01-19-2012, 09:26 AM   #40
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Default Re: 2004 Precedent with new batteries going slow

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Originally Posted by Blanko View Post
#4. I originally replaced #2 with a new battery as it was 0.5V lower than other 3 after fill charge. But it made no difference. The old battery was good. When I say old it was March 2011. So I took that battery and replaced #4 (also March 2011) with it.

At same time disconnected accessories so either it was the battery change or the accessories disconnect that solved the problem. But the battery i put into position #4 isstill 0.5V short of the others on charge. So I think I will charge up the other battery and swap it out and see if it is the battery or the accessories causing the drain
Remember, that is a new battery and will take 10 to 20 charge cycles to reach full state of charge. So that is normal to be a little lower in reading from the other three.
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