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01-09-2014, 10:53 PM | #1 |
Not Yet Wild
Join Date: Nov 2012
Location: navarre, fl
Posts: 34
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Lead acid battery conversion to lipo
Hello all. I am curious if anybody has attempted to convert their cart to lipo. I am going to purchase some modules they use on a Nissan leaf electric car and make my own battery pack. It will be a 38v 60ah pack which should push my cart right along. I have built a basic battery management system to keep the battery pack from over charging or drawing the pack down to low. This pack will only weigh just over 40 pounds. Which should drop a lot of weight off the cart. If anyone has done this conversion I would like to know how much of a difference it made on the cart. Btw I am doing this cheaper than a set of new Trojans.
Eddie |
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01-10-2014, 12:23 AM | #2 |
Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: Lead acid battery conversion to lipo
60ah is a little low. I have built 80ah 48v packs for rxv, they run slightly longer than a T-1275 pack. A T-1275 pack has significantly less capacity than a T-105 36v txt pack. I have explained the differences in rating practices between lithium and lead cells in other threads, if I can figure out how to link that thread.
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01-10-2014, 01:21 AM | #3 |
Not Yet Wild
Join Date: Dec 2013
Location: Brisbane Australia
Posts: 46
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Re: Lead acid battery conversion to lipo
Even considering any differences in rating or management pratice.....there is a big difference between the quoted 60Ah of the proposed LiPo pack and the 225Ah of the T105.
Still interested to hear about a LiPo conversion that is viable and economical. cheers |
01-10-2014, 01:23 AM | #4 |
Not Yet Wild
Join Date: Nov 2012
Location: navarre, fl
Posts: 34
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Re: Lead acid battery conversion to lipo
Thanx for the reply. I can step it up to 90ah since the cells are 30 ah cells. Each cell in the modules I can get are 3.8v 30 ah. Right now they are configured 2 in parallel and wired in series to make 7.6v at 60ah. I was also thinking of going to 48 volt since I have a alltrex 650 amp controller in the cart that will reprogram to 48 volt. L
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01-10-2014, 01:36 AM | #5 |
Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: Lead acid battery conversion to lipo
What other info do you have on the cells, like max "C" discharge ratings? how many could fit? Having a safe way to charge them, ensure cell balance, prevent over-discharge? Do you have some experience with lithium cells, and what they require to not burn?
Lithiums "sag" far less than lead batts under max load, and an Alltrax 650 would kick some A** on those at 48v! |
01-10-2014, 01:49 AM | #6 |
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Join Date: Apr 2009
Location: FT Lauderdale FL.
Posts: 16,416
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Re: Lead acid battery conversion to lipo
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01-10-2014, 02:02 AM | #7 |
Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: Lead acid battery conversion to lipo
Yep, thanks.. How do you copy threads like that? I figured out the pain way, is there an easy way? Please PM so as not to hijack thread.
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01-10-2014, 03:00 AM | #8 |
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Join Date: Apr 2009
Location: FT Lauderdale FL.
Posts: 16,416
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Re: Lead acid battery conversion to lipo
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01-10-2014, 06:49 AM | #9 | |
Not Yet Wild
Join Date: Nov 2012
Location: navarre, fl
Posts: 34
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Re: Lead acid battery conversion to lipo
Quote:
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01-10-2014, 07:42 AM | #10 |
Gone Wild
Join Date: Sep 2012
Location: Savannah, GA
Posts: 2,760
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Re: Lead acid battery conversion to lipo
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