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Old 03-29-2023, 03:07 PM   #1
Lochlin
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Default Calling All 48v Lithium Gurus....New Product Review Needed

I did some forum searches but could find nothing on this new supplier. Apparently, they just recently (according to some Amazon reviewers just a month or so ago) started selling 48v 100ah drop in lithium packs versus 12v "parallel them" only options previously. At $1800 the price is fair but, although that price includes a BMS, it doesn't include a charger.

https://www.amazon.com/OGRPHY-48V-10...ct_top?ie=UTF8

Can one or a few of you lithium gurus offer up an opinion? I am not pulling the trigger on anything quite yet. Just obtaining info.
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Old 03-29-2023, 03:14 PM   #2
jasonojordan
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Default Re: Calling All 48v Lithium Gurus....New Product Review Needed

100ah is not enough output for a golf cart other then possibly one that is only every operated on flat pavement and bone stock.

You could buy two and run them together.
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Old 03-29-2023, 03:23 PM   #3
Lochlin
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Default Re: Calling All 48v Lithium Gurus....New Product Review Needed

I am under the believe that ah refers to longevity (run time) more so than output. Are things different with lithium packs?
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Old 03-29-2023, 03:28 PM   #4
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Default Re: Calling All 48v Lithium Gurus....New Product Review Needed

Quote:
Originally Posted by Lochlin View Post
I am under the believe that ah refers to longevity (run time) more so than output. Are things different with lithium packs?
It does reference to your run time but in the case of these cells it also means the max sustained A output. These are 1c cells. These cells and packs are designed more for solar energy storage then carts.
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Old 03-29-2023, 03:34 PM   #5
Volt_Ampere
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Default Re: Calling All 48v Lithium Gurus....New Product Review Needed

Output is almost always correlated to AH rating. Lager batteries with higher AH rating also generally can handle higher sustained and higher peak current draw.
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Old 03-29-2023, 03:54 PM   #6
scottyb
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Default Re: Calling All 48v Lithium Gurus....New Product Review Needed

Oh shucks - does that mean I have to stop running this cart to the top of the mountain at sunset every other day? 14 hp Admiral B4 motor, 500 amp XCT control, and 72ah Eco battery.
This one too? 6.5 hp FSIP torque motor, 400 amp alltrax, 90ah Uno battery.
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Old 03-29-2023, 03:59 PM   #7
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Default Re: Calling All 48v Lithium Gurus....New Product Review Needed

Don't know that I would suggest being the guinea pig. I was in early on both the pack above. There is a learning curve after the release because customers are much harder on stuff than the test staff. In my case I had to wait 4 or 5 weeks for a replacement battery after just one ride.

Remember everything is not created equal and price isn't everything
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Old 03-29-2023, 04:03 PM   #8
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Default Re: Calling All 48v Lithium Gurus....New Product Review Needed

100Ah is plenty capacity wise, but when you dive deeper into the specs it states, as Volt_Ampare already suggested, that is has a 100A BMS capable of only 100A continuous current. Not enough. Leave it alone and go with an established, reputable supplier.

Once again, as Volt_Ampare said, these cheap Lithium batteries have an output current of only 1C, which means 100Ah = 100A continuous.
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Old 03-29-2023, 04:09 PM   #9
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Default Re: Calling All 48v Lithium Gurus....New Product Review Needed

Thanks for the clarification.
Hardly a day goes by we do not get an offer to buy some new inexpensive battery.
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Old 03-29-2023, 04:10 PM   #10
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Default Re: Calling All 48v Lithium Gurus....New Product Review Needed

The new EZGO Elite (RXV) carts that come with lithium have a very small Samsung pack but it works just fine. Not sure what type cells they use but these carts are fast and have plenty of power and the battery / BMS delivers the power. These batteries can't be more than 60AH based on size and weight.
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