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Unread 05-05-2009, 03:53 PM   #11
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Default Re: ClubCar A8913 keeps charging

Ko, I guess I'm told I should get a hydrometer to test the battery level, and also will get some wire scrubbers, terminal scrubbers, and general battery fix'n tools-n-stuff. Then take each one off, clean etc., and put back on.

Oh, I don't know what "5 of 12 lug" means? and I don't know what "loaded" means...is that good or bad? Only thing I've added to this cart is a 12v radio, but it had headlights, taillights, blinkers when I bought so maybe that's it...

Thanks!
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Unread 05-05-2009, 04:12 PM   #12
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Default Re: ClubCar A8913 keeps charging

I don't think you need a hydrometer yet, use a digital volt meter and post the battery voltages. After that you probably should clean up some of the corroded connections.
I think the "loaded" comment was regarding lights etc. Most of that stuff should come off a voltage reducer but some use the batteries directly which is less expensive and probably what you have going on. A voltage reducer draws power off the complete battery pack and keeps 2 batteries from being depleted earlier than the other 4. If you are running with your radio on for a complete round of golf you may have issues with an unbalanced battery pack.
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Unread 05-05-2009, 05:24 PM   #13
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Default Re: ClubCar A8913 keeps charging

When I test with a voltage meter, I do this with the cables off...correct ?
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Unread 05-05-2009, 05:35 PM   #14
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Default Re: ClubCar A8913 keeps charging

You can leave the cables on.
Measure the whole pack voltage and then measure each battery. Use the digital meter and place the + on the positive terminal and the - on the negative terminal. In a 36v system, the whole pack should be around 38.4v and each battery should be around 6.40v.
Batteries are attached in series (in a row) like a flashlight.

-[6v]+-[6v]+-[6v]+-[6v]+-[6v]+-[6v]+
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Unread 05-05-2009, 11:34 PM   #15
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Default Re: ClubCar A8913 keeps charging

Starting top left and going thru each, 1 thru 6, they were:
1. 6.42
2. 6.44
3. 6.44
4. 6.43
5. 6.34
6. 6.35

then I measured from neg (-) on cell 1 to pos (+) on cell 6 and overall it said 38.3.

I have not cleaned the wires and terminals yet (didn't have time tonite). Now, just because I get a 38v on the total pack does it mean there could still be a problem with the connections. I would have expected something less of 38v if there was a connectivity problem between any of the cells???

I also looked at the specs on the battery, they again are Interstate and say
RC @ 75A - 122
20amp - 232

I dunno what that means...are these gonna work ? Let me know about how the cleaning process will help and I'll get to that tomorrow, then probably plug back into the charger.

Again, these are new batts. Old ones had reached their end-of-life but even in their last few months they would finish charging after 12-14hrs.

Thanks!
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Unread 05-06-2009, 09:59 AM   #16
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Default Re: ClubCar A8913 keeps charging

Also, do cables "wear out" ? Should I even bother cleaning these up, or just get a new set? Being 20 yrs. old is that a concern ?
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Unread 05-06-2009, 10:12 AM   #17
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Default Re: ClubCar A8913 keeps charging

Ok buggie_girl here is what I have !
The operators service Manual for Lester 07850 charger.
1. Copy of pdf attached.
2. Manual states if charger stays on longer than 18 hours , charger is defective .
3. It also states that new Batteries may require extended charge .

Read the manual. (especially page 5 Troubleshooting)

Here is the state of charge Table
State of Charge Readings

Your Batteries should be checked 30 min to 1 hour after charger is removed to allow for settling.

Do this check charge , then after a round of golf after the day ends,
check again and note: Time.
Check in 12+ hours to see if charger is still on ,
If Yes let it charge for 7 more hours if charger is still on it is defective !
It may not be a battery problem but a charger problem .
If this is the case and you have a friend with the same setup swap chargers
for a day and see if the problem persist.
Attached Files
File Type: pdf Lester00870_E.pdf (157.1 KB, 19 views)
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Unread 05-06-2009, 10:14 AM   #18
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Default Re: ClubCar A8913 keeps charging

Okay.... you are learning fast! 20 year old cables are garbage. They corrode on the inside and the corrosion equals unwanted resistance. New cables should be used each time the batteries are replaced.....Can you check your charger on another cart? Or can you borrow another charger to try. Just to eliminate the possibility of a bad charger? Find an identicle charger to use once first.
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Unread 05-06-2009, 10:17 AM   #19
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Default Re: ClubCar A8913 keeps charging

Yea the thing "buzzes" crazy loud for about the first hour after I plug it in, then quiets down to at least a tolerable noise. But in that first hour you can't even hardly be in the garage w/o it driving you insane. I did have the board replaced in it about 6 years ago and did seem normal again, but then after about 1 year the buzzing returned and I just figured that's what they do ?
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Unread 05-06-2009, 04:15 PM   #20
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Default Re: ClubCar A8913 keeps charging

The initial buzzing is normal and associated with the case. You will probably notice if you push down on the top of the case or squeeze the sides, the noise changes. Under heavy load, (25 amps) these things are pretty buzzy and as the load drops so does the noise.
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