I need advice on charger connectors

Dsouthw524 · 11-26-2013, 07:18 AM

I am new and trying to learn and need advice.

I recently bought a 1990 EZGO Marathon cart with 3 year old batteries. They seem to have little endurance. I am not sure if the problem is the batteries or the connectors. I do know that the batteries seem to have varying life and I suspect the connectors are not always allowing a complete charge.

I have installed the following additions to the cart:
36 X to 12 V to run lights - the converter is non switched.
a Battery Life Maintainer (Desulfator)

The charger connector and the cart connector seem not very secure and easily slips out of contact. The connector contacts are 2 flat "pins" in each.

1. should I replace the connector pins, if so how do I identify what I need?
2. Would I be better off changing to different type of connectors and if so what would fit the cart and charger?

eflyguy · 11-26-2013, 08:22 AM

The connector is designed that way, it's probably fine. What kind of charger do you have?
..a

JohnnieB · 11-26-2013, 10:04 AM

The 36V to 12V converter needs to be switched off when not in use.
Some desulfators, draw power from the battery pack, it may be a source of power drain.

------------
What is the pack voltage 12 hours after the charger shuts off automatically?
Should be 38.2V for a 36V pack. Each battery should measure 3.67V and all six should be withing 0.1V of each other.

What is the AH rating of the batteries?
225AH is standard.

Dsouthw524 · 11-26-2013, 11:50 AM

Thanks for the input.
I know that the charger is the Textron charger.

I will change the wiring for the 36v to 12 Volt.

Sir Nuke · 11-26-2013, 08:04 PM

Quote:

Originally Posted by JohnnieB

The 36V to 12V converter needs to be switched off when not in use.
Some desulfators, draw power from the battery pack, it may be a source of power drain.

------------
What is the pack voltage 12 hours after the charger shuts off automatically?
Should be 38.2V for a 36V pack. Each battery should measure 3.67V and all six should be withing 0.1V of each other.

What is the AH rating of the batteries?
225AH is standard.

johnny.....I think you got a little "key happy" ....... don't think each battery SHOULD measure 3.67v.....unless you are measuring DEAD batteries!!! LOL

JohnnieB · 11-27-2013, 05:43 AM

Quote:

Originally Posted by Sir Nuke

johnny.....I think you got a little "key happy" ....... don't think each battery SHOULD measure 3.67v.....unless you are measuring DEAD batteries!!! LOL

I need a proofreader.

That should be 6.37V

Dsouthw524 · 11-27-2013, 06:42 AM

Thanks again and for the correction guys.

11-26-2013, 07:18 AM	#1
Dsouthw524 Not Yet Wild Join Date: Oct 2013 Location: Texas Posts: 70	I need advice on charger connectors I am new and trying to learn and need advice. I recently bought a 1990 EZGO Marathon cart with 3 year old batteries. They seem to have little endurance. I am not sure if the problem is the batteries or the connectors. I do know that the batteries seem to have varying life and I suspect the connectors are not always allowing a complete charge. I have installed the following additions to the cart: 36 X to 12 V to run lights - the converter is non switched. a Battery Life Maintainer (Desulfator) The charger connector and the cart connector seem not very secure and easily slips out of contact. The connector contacts are 2 flat "pins" in each. 1. should I replace the connector pins, if so how do I identify what I need? 2. Would I be better off changing to different type of connectors and if so what would fit the cart and charger?

11-26-2013, 08:22 AM	#2
eflyguy Gone Wild Join Date: May 2009 Location: Marietta, GA (USA) Posts: 368	Re: I need advice on charger connectors The connector is designed that way, it's probably fine. What kind of charger do you have? ..a

11-26-2013, 10:04 AM	#3
JohnnieB Techno-Nerd Join Date: Jun 2011 Location: West Virginia Posts: 19,654	Re: I need advice on charger connectors The 36V to 12V converter needs to be switched off when not in use. Some desulfators, draw power from the battery pack, it may be a source of power drain. ------------ What is the pack voltage 12 hours after the charger shuts off automatically? Should be 38.2V for a 36V pack. Each battery should measure 3.67V and all six should be withing 0.1V of each other. What is the AH rating of the batteries? 225AH is standard.

11-26-2013, 11:50 AM	#4
Dsouthw524 Not Yet Wild Join Date: Oct 2013 Location: Texas Posts: 70	Re: I need advice on charger connectors Thanks for the input. I know that the charger is the Textron charger. I will change the wiring for the 36v to 12 Volt.

11-27-2013, 06:42 AM	#7
Dsouthw524 Not Yet Wild Join Date: Oct 2013 Location: Texas Posts: 70	Re: I need advice on charger connectors Thanks again and for the correction guys.

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