Having issues with charger stopping after 5 seconds

[APG-Lonewolf]

Hello all. I am having issues with my cart charger dropping out after 5 seconds of being plugged in. here are the facts that i have.
Cart is a 92 Marathon with batteries installed in June of 2013. When the charger does run it only chargers for about 3-4 hours. I did this yesterday. I just checked the total pack an hour ago and the SoC was 36.79V. All batteries were measured individually and results were
A 6.15
B 6.12
C 6.12
D 6.10
E 6.10
F 6.17
I tried plugging the charger in several times but it would drop out instantly this was around 3 hours ago. I just tried again about 30 minutes ag o and it took off on the third try and started charging. I measured total pack and it was receiving 41.8V. individual batteries were
A 7.25
B 7.27
C 7.19
D 7.22
E 7.20
F 7.55
the charger is a Total Charge IV E-Z-Go Textron Input 120v/12A - Output 36V/21A DC Number of cells 18 Ah 240
The batteries are Interstate Deep Cycle GC2-HD-UTL 216Ah

After reading several posts on here about battery care I probably should be turned into the Battery police for abuse. I do keep them clean and watered but probably abuse the discharge rate of 70% alot. I know the last year we had to tow the cart back to our lot a couple of times due to dead batteries. with this said I dont know if my issue is with the batteries or the charger. when looking in the cells the plates are clean and not all crystallized up.

Any thoughts??

Thanks Rick

[APG-Lonewolf]

Update
Charger has shut off after about an hour. Total SoC after charge was 37.06. Also all other battery values barely came up more than 0.1 V

[APG-Lonewolf]

Never mind. I have sold this cart. Thanks anyways.