01-26-2022, 09:20 PM | #1 |
Not Yet Wild
Join Date: Oct 2021
Location: Colorado
Posts: 11
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Continuous Discharge
How important is the spec on lithium data sheets called "continuous Discharge"? I am new to this, but it seems to me that would be really important just after Ah. I see a range on 48v batteries from 100A (RoyPow) to 175A (Eco) Any help would be apperciated.
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01-27-2022, 08:36 PM | #2 |
Not Yet Wild
Join Date: Dec 2021
Posts: 3
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Re: Continuous Discharge
Typically both the AH and continuous discharge match. Well, at least with the lithium cells. I hadn't noticed previously that the Eco battery was off from that value. They even show the 72ah battery with 150 a continuous discharge. I'd be curious to find out myself.
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02-01-2022, 02:55 PM | #3 |
Gone Wild
Join Date: Dec 2016
Location: Kingsland, Georgia
Posts: 1,825
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Re: Continuous Discharge
The 48 volt, 72Ah Eco Battery has the following corrected specs from an email I received:
BTW, ampere hours and continuous operating amps are not the same. The AH will tell you how long you could run at the continuous amp rate. |
02-01-2022, 07:25 PM | #4 |
Not Yet Wild
Join Date: Oct 2021
Location: Colorado
Posts: 11
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Re: Continuous Discharge
Ok thanks. Do you think there is a big difference in power going from 100 to 175? RoyPow "power" model shows 150 and Big Battery is at 130. Eco is the only one listed at 175, but it seems they are hard to get right now. I tried 3 of the distributers listed on their website and they don't have them. I emailed the website directly a week ago and still no reply.
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02-01-2022, 11:05 PM | #5 | |
Gone Wild
Join Date: Dec 2016
Location: Kingsland, Georgia
Posts: 1,825
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Re: Continuous Discharge
Quote:
As far as a difference, in normal operation, fairly flat ground, amp draw shouldn't be an issue. I have never seen more than 94 amps on mine going flat out from a dead stop to 26mph with 4 riders, at which point it leveled of around 50 amps. The ampere hour rating will decide how many hours you can ride at a certain amp draw. If I kept mine at 94 amps for 45 minutes, the battery would be dead or nearly so. |
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02-02-2022, 02:03 AM | #6 | ||
Gone Wild
Join Date: Dec 2020
Location: Melbourne, Australia
Posts: 1,948
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Re: Continuous Discharge
Quote:
Quote:
The relationship between capacity (Ah) and continuous current rating (A) is known as the “C rating”. A 1C rating is fairly common for cheap cells. Better (read more expensive) cells may have a 3C or even 5C rating. A 100Ah 5C battery can discharge at 500A continuously. Cheers Pat. |
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02-03-2022, 11:59 PM | #7 |
Not Yet Wild
Join Date: Oct 2021
Location: Colorado
Posts: 11
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Re: Continuous Discharge
Thanks. That makes sense.
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02-04-2022, 12:01 AM | #8 |
Not Yet Wild
Join Date: Oct 2021
Location: Colorado
Posts: 11
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Re: Continuous Discharge
Just ordered an Eco. Should be here in a week or so.
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02-04-2022, 09:05 PM | #9 | |
Gone Wild
Join Date: Mar 2014
Location: NE Indiana & SW Florida
Posts: 3,238
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Re: Continuous Discharge
Quote:
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02-05-2022, 09:04 PM | #10 |
Gone Wild
Join Date: Dec 2016
Location: Kingsland, Georgia
Posts: 1,825
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Re: Continuous Discharge
You won't regret it!
One question you can ask yourself. With all the Eco Batteries sold out there, why have there been few, if any, failure writeups in any of the golf cart forums. That is a very encouraging statistic for me. |
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