Quote:
Originally Posted by MorTech
The EZGO Elite has a single lithium battery array...Not 6 separate battery packs wired in series.
Would really like to know max charge cycles on the EZGO pack! I suspect it is at least 3500 before you start losing significant range.
EZGO Elite uses a Delta-Q QuiQ charger, I just discovered.
My AC motor cart is about 130w per mile and it has "neck-snapping" acceleration 
It goes 0-20 faster than a Tesla in Ludicrous Mode
The Chevrolet Bolt is about 225 watts per mile!
120 miles per charge! What is the kwh rating of your lithium battery pack?
Must be a very efficent motor. Is it an AC motor?
Another benefit of Lithium is that you don't have to keep them fully charged to get maximum life from them. Lead-acid technology needs to be kept fully charged or they start eating themselves. Yes, lead-acid eats itself faster at below 50% charge.
You can not run lithium down to 0% (or charge to 100%) without damaging them. The charger Charge Profile and motor controller will take this into account. Lithium has higher internal resistance so you don't have to run a top-up charge every 2 weeks of non-use like with lead-acid...Nor do you run a Desulfator/Equalize charge with Lithium. |
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Re: six separate battery packs in lead acid
Most of the current golf carts run on 48 volts. Each lead acid cell is 2 volts so to get 48 volts you need 24 cells.
If, you are using 12v batteries each will be 6 cells-thus you will see 6 fill caps. To get 48 volts out of 12v batteries it will be four batteries.
Some carts use 8 volt cells-4 fill caps and so you will have 6 batteries. Other carts use 6 volt cells-3 fill caps so you will have eight of them. The advantage of the 6v or 8v cells is that they will have more storage capacity then the 12v cells.
Re: Desulfation
When, a lead acid battery is stored uncharged you get lead sulfate on the plates-it is not reversible so you loose usable capacity.
Re: Lithium ION
You will get many more recharge cycles if you do not run them all the way down. I've not seen the ones they sell for golf carts. They might well be a single block but like all the others mentioned above it is many separate cells wired together. Lithium ION cells are 1.5 volts so for 48 v it is 32 cells
Re: battery warranty
Watch the fine print. If, you have a car battery with a five year warranty-for example. Should your battery fail, you will fiond the warranty is prorated. Translation you used if for say 3 years so you have gotten 3/5 of the life. You then will find they will want to sell you the same or similar battery by the same manufacturer at 2/5 of the LIST PRICE. No one pays list price for a car battery so you will discover after 3 years use your 5 year battery warranty has little or no value.