immediate voltage drop new batteries 95club

[Hyeflyer]

i recently bought a modz charger 48 v for a 95 clubcar, all new batteries, wired in lights , and a new pentiometer. The charger wont turn off meaning the batteries have not takin a full charge , the battery meter says full after 10 hrs of charging . if i leave the charger off for 8 hours i come back to half dispaly on the battery meter and 44.9 volts . Do i need to bypass the obc? the charger is for both with and with out obc? or did i miss something else/

[scottyb]

Once I had a new set of Trojans that the first charge went for 14 hours ! As long as the pack voltage is not exceeding 65v I would let them go. They are probably drawing a very little amperage at the end of the charge

[Hyeflyer]

But isnt 44.9 low ? I mean i didnt even move it and it droped?

[Volt_Ampere]

44.9 is dead! Something is very wrong here. Measure the individual batteries. Maybe one is defective.

[CP241]

27 year old cart…. Have you replaced the cables? If they’re still the original cables in the cart that could definitely be a problem even if the ends look okay. Maybe a bad cable or bad connection? What are the individual battery voltages? Are you positive they’re wired correctly and one of them isn’t backwards?

[Fairtax4me]

Did you hook up a battery backwards? Check every cable connection - to +
If you did not bypass the OBC, you need to do that.

[Hyeflyer]

so i checked the wires repeatedly they r correctly wired, newer cables , ido have the power for the lights off the first pos.battery (the main ) and neg. post on second battery (they run to a fuse box)
the first three come backat 6.40and the last three 8.58

[CP241]

Something is wrong with those first 3 batteries. Silly question maybe… Are you sure they are 8 volt batteries? 6.4v would be right at perfectly charged for a good 6v battery

[Hyeflyer]

holyS’mokes you are correct the three are six volt , my embarrassment fades fast at least
Thank you

[CP241]

Originally Posted by Hyeflyer

, my embarrassment fades fast at least
Thank you

Glad you got it. Now just gotta trade the 6’s back for 8’s and you’ll be good