Charger Expert needed

[ProSouth]

Hello need some help troubleshooting a fail to charge issue
2009 Club car Precedent 6-8 volt setup
OBC bypassed using Lester kit
2013 T-875 batteries
Onboard Lester Summit charger installed
Been working fine
Recently charger stopped working voltage @47 currently
Replaced with new unit same issue , Lester says charger will kick in with
With low voltage
Looking for any ideas

[PingEye3]

Go over all battery cable connections and charger cable connections at the battery and receptacle making sure everything is clean and tight. Check your voltage at the charge socket to see if it is same as pack voltage. Sounds like it could be a bad connection somewhere. Good luck.

PS - I am NOT and expert....

[NoleFan4Ever]

Check the receptacle fuse and see if it is blown. You can check it with a continuity meter at both posts to determine it...

You will find or reveal the problem on one side or the other of that receptacle because if the fuse is good, then as PingEye3 stated, the voltage readings taken from the receptacle will tell you what you are missing (the Neg or the Pos) and then you can back up from there to find the culprit.

Red wire from Receptacle should be going to Main Positive and Black wire from the receptacle should be going to the Main Negative.

[Sergio]

Your problem is most likely related to "...OBC bypassed using Lester kit...".

The 10ga black negative wire that comes from the charger receptacle connects to the Lester kit harness using a single packard quick connect terminal near the OBC.

There is a fuse inside that Lester harness that most likely has blown.

Hopefully you made sure the new summit charger has been configure for "onboard" use as the default "stand alone" mode only starts a new charging cycle when it is disconnected from the batteries and that does not happen when mounted onboard.

[ProSouth]

Thank you all for the quick replies and excellent points
I plan to check these items this weekend and will post
Results

[ProSouth]

Originally Posted by NoleFan4Ever

Check the receptacle fuse and see if it is blown. You can check it with a continuity meter at both posts to determine it...

You will find or reveal the problem on one side or the other of that receptacle because if the fuse is good, then as PingEye3 stated, the voltage readings taken from the receptacle will tell you what you are missing (the Neg or the Pos) and then you can back up from there to find the culprit.

Red wire from Receptacle should be going to Main Positive and Black wire from the receptacle should be going to the Main Negative.

Hello ok I checked the fuse and it it OK
The voltage at charge receptacle is 24 negative and 22 positive

[NoleFan4Ever]

Originally Posted by ProSouth

Hello ok I checked the fuse and it it OK
The voltage at charge receptacle is 24 negative and 22 positive

Is your pack voltage all the way down to ~24vdc? You should be getting pack voltage there unless there is a connection issue.

[Raystar57]

How did you measure this voltage?
Meter in VDC
Neg lead to last battery #6
Pos meter lead to charge receptacle Pos should give full pack voltage. ~48VDC
There should be no voltage on the Neg terminal at the charge receptacle.

If you used the wrong battery for Neg reference you could read half voltage.

Recheck the neg meter lead reference point.

[ProSouth]

Originally Posted by Raystar57

How did you measure this voltage?
Meter in VDC
Neg lead to last battery #6
Pos meter lead to charge receptacle Pos should give full pack voltage. ~48VDC
There should be no voltage on the Neg terminal at the charge receptacle.

If you used the wrong battery for Neg reference you could read half voltage.

Recheck the neg meter lead reference point.

Well voltage is fine , Port match’s pack ,I was actually trying to check at
Charger port using negative and positive leads
I checked all fuses on bypass and harness
I lubricated the charger port , It’s working now
Although I’m hesitant to believe issue fixed itself

[Mooncarter]

Are you saying voltage at port just "went" from 24 volts to 48 plus?