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Old 03-31-2022, 06:38 PM   #1
Blitz560
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Default Adding another factory lithium battery to Ezgo elite?

Has anyone added another factory battery pack to a txt elite? I just picked up a 2018 txt 2.0 cart with the Samsung sdi 60ah battery pack. Seller threw in a extra Samsung 60ah battery pack he had. The cart and extra battery are both new old stock, they sat in a crate until now.

1. Should I be worried with a 3-4 year old lithium battery if itís never seen use?

2. Can I add this extra battery pack to the cart and if so whatís entailed? Programming if any?

Called a few places here in south Florida but no one seems to know much when it comes to lithium batteries.
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Old 04-01-2022, 09:13 AM   #2
Pat911
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Default Re: Adding another factory lithium battery to Ezgo elite?

4 years untouched may be a problem if any cells are now below the minimum threshold. Youíll need to check the voltage on each cell to determine if itís safe to use. Are you able to open the battery and check the voltage of each cell?
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Old 04-01-2022, 01:32 PM   #3
davidgolfer
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Default Re: Adding another factory lithium battery to Ezgo elite?

Quote:
Originally Posted by Blitz560 View Post
Has anyone added another factory battery pack to a txt elite? I just picked up a 2018 txt 2.0 cart with the Samsung sdi 60ah battery pack. Seller threw in a extra Samsung 60ah battery pack he had. The cart and extra battery are both new old stock, they sat in a crate until now.

1. Should I be worried with a 3-4 year old lithium battery if itís never seen use?

2. Can I add this extra battery pack to the cart and if so whatís entailed? Programming if any?

Called a few places here in south Florida but no one seems to know much when it comes to lithium batteries.
You can do either the extra pack would give you more life, basically double your run time. That pack could last up to 10 years, do you have a place to store other until then? Would it be ok sitting untouched for 10 years? Don't know but I would find out first. Not sure exactly how to add a second pack. When I asked about this last year the dealer said it was possible to order an extra but didn't know how to install.
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Old 04-01-2022, 07:05 PM   #4
Blitz560
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Default Re: Adding another factory lithium battery to Ezgo elite?

Quote:
Originally Posted by Pat911 View Post
4 years untouched may be a problem if any cells are now below the minimum threshold. Youíll need to check the voltage on each cell to determine if itís safe to use. Are you able to open the battery and check the voltage of each cell?
According to the seller he charged the extra batteries when I got them to see if they would hold a charge. He never tested them before charging them. Today I tested them and they were showing 55.2v and 55.3v
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Old 04-02-2022, 02:18 AM   #5
Pat911
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Default Re: Adding another factory lithium battery to Ezgo elite?

Itís not about holding a charge. If any cell has been allowed to discharge below 2.5v for NMC chemistry or 2.0v for LiFePO4 then that cell is dangerous to use, especially NMC. Itís basically a time bomb waiting to go off.

Chances are fairly good that all is fine, but it would be nice to know for sure.

Cheers
Pat.
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Old 04-02-2022, 09:08 AM   #6
Volt_Ampere
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Default Re: Adding another factory lithium battery to Ezgo elite?

As long as the BMS doesn't put a parasitic load on any cells, a Lithium pack can sit a long time and not self discharge enough to damage it.
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Old 04-02-2022, 09:20 PM   #7
Blitz560
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Default Re: Adding another factory lithium battery to Ezgo elite?

So if I decide to add these batteries is it a DYI project? Whatís the process for adding one of these Samsung packs? I see another data wire daisy chaining my two current batteries together. So far everyone I have called locally doesnít know how or want to mess with it.
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Old 05-19-2022, 11:40 AM   #8
stewyracer
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Default Re: Adding another factory lithium battery to Ezgo elite?

I would like to know the answer to this also. I have two 2017 RXV Elite that I am trying to put both 60Ah in one cart. I have a programmer and I know how to hook up two 60Ah lithium but I don't know how to get two BMS plugs into one harness
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Old 05-23-2022, 09:27 AM   #9
stewyracer
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Default Re: Adding another factory lithium battery to Ezgo elite?

So I answered my own question, and here is the solution, encase anyone can use this info. EZGO has three different BMS cables that are for any configuration, two banks (60Ah) part number 652090 three banks (90Ah) PN 651961 and four banks (120Ah) PN 651962. Hope this helps someone.
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Old 05-23-2022, 09:29 AM   #10
stewyracer
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Default Re: Adding another factory lithium battery to Ezgo elite?

I also have another problem now. How do I get the car that I took the lithium battery out of, able to run with lead acid batteries. I have a BMS input in the wiring harness.
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