Battery questions

[Bscheu]

Hey guys,

I'm new to the golf cart world and picked up an 07 txt at an equipment auction 2 weeks ago. I've been reading on this forum every night trying to gather information. So far, I've cleaned the batteries and upgraded the cables between the batteries and the 2 main cables to 2 ga.

I borrowed a charger from my neighbor who has the same cart because mine has the 6 flashing red lights. After a 24hr charge, I added distilled water to a few of the cells that were low. I did this by popping off the caps because I was unsure how to use the easy fill system with a gallon jug. I would like to remove this due to some negative feedback I saw in some other posts.

Anyways the real reason for my post is that I'm having power issues. After charging the batteries were all between 6.50 and 6.59v and the whole pack was 39.0v. After running approximately 1.5 miles or so around the neighborhood and sitting for a day they were 6.08-6.18v and 36.7v as a whole.

Tonight after sitting a few days I ran another mile around the block and checked them, they were 6.01-6.05 and one measured 6.12v and the pack was 36.4v.

Seems to run normal speeds on the streets (10-12 mph), but tonight when I pulled in the yard it would barely move on the grass and minimum incline.

Do you think the batteries are bad?
They were still only put on the charger the one time 5 or 6 days ago.

Thanks for any help. Wanting to figure this out before I dive into modifications.

[cgtech]

I think they are shot. Forgot to ask, how old are they? Date code is usually stamped on a terminal. B3 = Feb, 2013

[teecro]

Originally Posted by cgtech

I think they are shot. Forgot to ask, how old are they? Date code is usually stamped on a terminal. B3 = Feb, 2013

2nd....

[Bscheu]

They all look to say "C9". I assume from your example above that would be March 2009?

[mutant]

looks like time for a new pack....

[teecro]

Originally Posted by mutant

looks like time for a new pack....

Better get some new cables too, them look like poop....

[Bscheu]

Thanks for the feedback.

The picture was taken before I upgraded cables. There was multiple different sizes and many different connections had been installed. Since I only upgraded the cables between the batteries and the 2 main cables, do I need to upgrade the rest of the cables?

Also, since I'm replacing the batteries should I convert to 48v? I'm not looking to necessary fly around the neighborhood, just wondering if it's cost effective since I'm needing new batteries and a new charger anyways.

[mgray70]

Originally Posted by Bscheu

Thanks for the feedback.

The picture was taken before I upgraded cables. There was multiple different sizes and many different connections had been installed. Since I only upgraded the cables between the batteries and the 2 main cables, do I need to upgrade the rest of the cables?

Also, since I'm replacing the batteries should I convert to 48v? I'm not looking to necessary fly around the neighborhood, just wondering if it's cost effective since I'm needing new batteries and a new charger anyways.

Now would be the time if your planning to do it anyway since you need a charger also. You will need a need control and solenoid as well.

Sent from my SM-G930R4 using Tapatalk

[mgray70]

Speed control, sorry, darn auto correct!

Sent from my SM-G930R4 using Tapatalk

[bird6246]

just understand 48 volts doesn't necessarily make your cart faster. It will make your drive time longer. think of the batteries as a fuel tank. more voltage bigger fuel tank.