06-03-2022, 11:30 PM | #21 |
Gone Wild
Join Date: Dec 2020
Location: Melbourne, Australia
Posts: 1,919
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Re: 04 precedent lithium conversion??
A quality 4 bank charger will be expensive as it is essentially 4 individual chargers.
The NOCO GENPRO10X4 is one that comes to mind but be aware that even though it states that it's a 40A charger, it's really a 4x10A charger, so it will take over 10 hours to fully charge your 100aH batteries from flat. Cheers Pat. |
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06-04-2022, 08:58 AM | #22 |
Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,125
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Re: 04 precedent lithium conversion??
You can get by with a 10 amp charger. Mine is 17 amps and it charges my cart from 25% to full in about 5 hours. A 10 amp charger would probably take 8 hours or so. My backup charger (for my Ebike battery) is only 5 amp.
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06-04-2022, 11:22 AM | #23 | |
Not Yet Wild
Join Date: Jul 2020
Posts: 28
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Re: 04 precedent lithium conversion??
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06-04-2022, 12:02 PM | #24 |
Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,125
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Re: 04 precedent lithium conversion??
I would check with the battery manufacturer before I would use any charger that is for AGM batteries! Wrong charger can cause big problems! Lithium and AGM are very different.
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06-04-2022, 06:47 PM | #25 | |
Gone Wild
Join Date: Dec 2020
Location: Melbourne, Australia
Posts: 1,919
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Re: 04 precedent lithium conversion??
Quote:
Not only are you not using the correct charging algorithm, you’re also relying on the battery’s BMS to control charge and that’s not its job. It’s job is as a protection device, the charger should sense battery charge state and stop charging. The AGM charger will not do that. Cheers Pat. |
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06-04-2022, 07:51 PM | #26 |
Nincompoop village idiot
Join Date: Apr 2018
Location: Michigan
Posts: 9,625
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Re: 04 precedent lithium conversion??
Or you could just skip all the “what if’s” and instead of trying to go on your own and cobble something together that has a potential hazard to burn your house down while you sleep due to cheap BMS, wrong charger, etc. spend a few more bucks and get a setup with the proper charger for a golf cart.
Some things just aren’t worth the risk. You’ll be around $1800 into this venture, give or take, cobbling it together. For the same price you could have a 60aH allied kit with charger. Add a few more bucks for other brands and get the same (or better)100ah you have now depending on what system you go with, you could have a drop in system designed for a golf cart with the correct charger to do it safely. A couple hundred bucks for peace of mind for safety is worth every penny. Truth be told, we really don’t know that your batteries are a true 100aH. Many cheaper versions of batteries don’t exactly perform as advertised. This even applies to the crusty old AA batteries in your kitchen drawer. Not all batteries are created equal. I had 60aH allied I paid $1800 with charger, and got ~30 miles per charge. I’ve since added a 3rd battery just for cold weather purposes. If I lived where it was warm still I never would have added/needed a 3rd battery but lithium doesn’t exactly play happy in cold weather Just my .02. It’s your cart, your house, your money. Best of luck with whatever you decide to do |
06-04-2022, 10:41 PM | #27 |
Gone Wild
Join Date: Apr 2017
Location: SE TN
Posts: 2,218
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Re: 04 precedent lithium conversion??
Here is what you need for a charger. You can use it stand alone or onboard charging. Just have to get a matching Anderson connector for your batteries.
https://www.amazon.com/Battery-Adjus...s%2C67&sr=8-18 |
06-04-2022, 11:06 PM | #28 | |
Not Yet Wild
Join Date: Jul 2020
Posts: 28
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Re: 04 precedent lithium conversion??
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06-04-2022, 11:15 PM | #29 | |
Not Yet Wild
Join Date: Jul 2020
Posts: 28
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Re: 04 precedent lithium conversion??
Quote:
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06-04-2022, 11:49 PM | #30 |
Gone Wild
Join Date: Apr 2017
Location: SE TN
Posts: 2,218
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Re: 04 precedent lithium conversion??
I have no opinions on a 4 bank charger. I would think that since each battery has its own BMS that there wouldn't be any balancing problem. I read the links provided about not being able to balance 12v Lithium but I didn't see any prove in them. Also LiFePo4 batteries will not catch fire. Here is an article about fires and chargers that might interest you. Good luck with your built.
https://www.batterystuff.com/kb/arti...ch%20on%20fire. |
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