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Unread 07-15-2019, 01:57 PM   #11
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Default Re: Allied Lithium drop in batteries

Interesting that they are LiFe. What is their current rating?
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Unread 07-19-2019, 08:58 AM   #12
Not Yet Wild
Club Car
 
Join Date: Jul 2019
Location: Lake Hartwell GA
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Default Re: Allied Lithium drop in batteries

Ordered a set of 50 AHr, yesterday. On the way. Stay tuned.....
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Unread 07-30-2019, 07:49 PM   #13
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Default Re: Allied Lithium drop in batteries

Any results so far on those that have received them? I have had no luck with lithium so far. I tried a couple of drop in solutions, and they have not panned out. Hoping this one is a good option.
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Unread 07-31-2019, 08:46 AM   #14
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Default Re: Allied Lithium drop in batteries

I got 4 60ah several weeks ago, along with their charger. Even though Club Car lead acid chargers will work, I wasn't going to take chances or shorten the battery life. I did have to bypass the OBC for the charger to work, but the sticky info here made the process easy.

I use the cart to play golf and cruise the neighborhood but my max is 27 holes. For cruising, about 5 to 9 miles, so no long trips. No issues whatsoever, but again, I haven't pushed the batteries to their supposed limit.

The one thing I'm having trouble/concerns with is the state of discharge (or state of charge). Allied provided a meter but I doubt it's accuracy. Everything I've read is you need a coulomb counter for lifepo4 batteries. Voltage stays very flat until the last 10-20% of charge. Without the counter, voltage is not a reliable way to know how much juice you have left.

I knew my usage should easily fall into the 60ah range, so knowing exactly my SOC is not as critical as it would be for others.

Overall, I'm pleased with their product. But, in the future, I will consider pricier options that have bluetooth built into their BMS for easier monitoring and SOC.
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Unread 07-31-2019, 01:26 PM   #15
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Default Re: Allied Lithium drop in batteries

Using a voltmeter as an SOC meter for lithium is not practical as You have found out.

You can always add an AH meter if You want to keep track of how many AH have been used since last charge and it would also help to see the battery amps being used in case you have ever triggered the battery "max current" safety disconnect.
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Unread 08-01-2019, 08:26 AM   #16
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Default Re: Allied Lithium drop in batteries

Thanks for the suggestion.
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Unread 08-01-2019, 09:54 AM   #17
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Default Re: Allied Lithium drop in batteries

That's interesting concerning the voltage readings not dropping off until the last 20% or so. On my Leaf Gen1 batteries I have the ZEVA amp-hr measurement on the screen, and it also shows the current voltage available...at rest. I have a separate volt meter from my LA days.

I actually look at the volts to determine my "remaining" charge. I know that when I drop below 50-V, I'm fast approaching the "knee" and don't have much left to use.

But that's just me I guess.
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Unread 08-01-2019, 10:08 AM   #18
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Default Re: Allied Lithium drop in batteries

Quote:
Originally Posted by DaveTM View Post
That's interesting concerning the voltage readings not dropping off until the last 20% or so. On my Leaf Gen1 batteries I have the ZEVA amp-hr measurement on the screen, and it also shows the current voltage available...at rest. I have a separate volt meter from my LA days.

I actually look at the volts to determine my "remaining" charge. I know that when I drop below 50-V, I'm fast approaching the "knee" and don't have much left to use.

But that's just me I guess.
These are LiFe batteries. They have a much flatter discharge curve than the Leaf chemistry.
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Unread 08-02-2019, 01:12 AM   #19
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Default Re: Allied Lithium drop in batteries

Quote:
Originally Posted by qtiger View Post
...snip...The one thing I'm having trouble/concerns with is the state of discharge (or state of charge). Allied provided a meter but I doubt it's accuracy. Everything I've read is you need a coulomb counter for lifepo4 batteries. Voltage stays very flat until the last 10-20% of charge. Without the counter, voltage is not a reliable way to know how much juice you have left....snip...
How about using one of the Victron meters. I have the BMV-702 with the additional bluetooth dongle but the BMV-712 has bluetooth built in. I'm using mine with Lead Acid but NoleFan4Ever uses his with his Lithium setup (he put me onto them).

More info at BMV-700 Battery Management Meter Install!!
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Unread 08-06-2019, 09:29 AM   #20
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Default Re: Allied Lithium drop in batteries

I have had them installed for a week or so now with the only use being top speed runs around the neighborhood because it makes me smile!!! Donít have a handle on the runtime and such so far but the power seems to be adequate and top speed around 32mph on the cart(have not installed top or rear seat yet).

Need to make sure I understand the issue mentioned above with the provided meter and take care of these batteries, I need them to last a long time!
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