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Old 10-10-2019, 09:57 AM   #51
NCPW
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Default Re: EZGO TxT48 with Leaf Modules

Install looks good

Did you decide not to use the temp probe to keep any eye on the module temps?
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Old 10-10-2019, 11:27 AM   #52
PingEye3
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Default Re: EZGO TxT48 with Leaf Modules

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Originally Posted by NBE View Post
What's the deal on these? Are you making and selling them?
I have been known to do that on more than one occasion.
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Old 10-10-2019, 06:14 PM   #53
seadogger
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Default Re: EZGO TxT48 with Leaf Modules

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Originally Posted by NCPW View Post
Install looks good

Did you decide not to use the temp probe to keep any eye on the module temps?
The temp probe is next on the list.
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Old 11-15-2019, 11:14 AM   #54
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Default Re: EZGO TxT48 with Leaf Modules

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Originally Posted by PingEye3 View Post
Thanks everyone.

Here is a picture of seadogger's plates for his install, ready for pickup.
How much for these plates?
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Old 11-15-2019, 11:45 AM   #55
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Default Re: EZGO TxT48 with Leaf Modules

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Originally Posted by seadogger View Post
The temp probe is next on the list.
Not sure where you an put a temp probe that will really help detect overheating of any one module.
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Old 11-15-2019, 12:54 PM   #56
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Default Re: EZGO TxT48 with Leaf Modules

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Originally Posted by Volt_Ampere View Post
Not sure where you an put a temp probe that will really help detect overheating of any one module.
I pick a module in the middle of the pack and gently shove it as far as it can go without to much resistance (2-3") into the small hole on the end of the module. I've seen where some people have sandwich the temp probe between two modules, but I'm not a fan of pinching wires between metal.


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Old 11-16-2019, 08:58 AM   #57
Volt_Ampere
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Default Re: EZGO TxT48 with Leaf Modules

Probably better than nothing but if any other module gets hot it won't see it fast enough.
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Old 11-16-2019, 09:16 AM   #58
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Default Re: EZGO TxT48 with Leaf Modules

I sandwiched my heat monitor in between two modules near the center. Wire crush wasn't an issue. I generally check the pack temp when I'm charging. Plus......if you're looking to shut it down because of thermal runaway......it's likely gonna be to late at that point anyway.
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Old 11-16-2019, 10:16 AM   #59
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Default Re: EZGO TxT48 with Leaf Modules

My garage seldom gets above 85 degrees and even when running or charging the pack will only climb a few degrees above ambient.

I think that the highest temps that I've ever seen on my pack was 92 when charging on a hot day. Typically if its a hot day I'll wait until it cools off in the evening before plugging in, I always charge with the seat raised and if its a really hot day I turn on a fan. FWIW, I've seen the pack temps drop by 3-5 degrees by just having a fan blow across the pack when charging on those hot days.

I'm pretty sure that I read that the thermal threshold for these cells is at 482 degrees.
Since the hottest temperature I've experienced is 92 degrees, anything over 110 is an anomaly and will open the HV/LV disconnect and isolate the pack.



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Old 11-16-2019, 10:38 AM   #60
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Default Re: EZGO TxT48 with Leaf Modules

Temperature sensor would be another backup to prevent a fire in case the other things fail. Lithium packs do not warm up much at all during normal charging - especially at the low rates that most of us charge at.
Tesla can supercharge at something like 400 amps - so they need lots of battery cooling while charging at those rates. My charger only goes to 17 amps which is less than .2C charge rate.
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