10-31-2020, 10:45 AM | #61 |
Getting Wild
Join Date: Jan 2019
Location: Knoxville TN
Posts: 95
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Re: 72V AC Drive Precedent Progress
You have it..... Solenoid, and charger need to be 72V.
(And a 72 to 12 convertor if you have auxiliary equipment) Be sure to get a lithium specific charger that shuts itself off after achieving full charge (Lithium batteries should not be "floated") You should also get a good "State of Charge" meter if you don't already have one. I would also recommend 24 cell Lithium Iron Phosphate for your battery. Feel free to call or text if you have other questions 513 477-9974 |
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11-04-2020, 06:38 PM | #62 |
Not Yet Wild
Join Date: Sep 2013
Location: South Florida
Posts: 37
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Re: 72V AC Drive Precedent Progress
Hi there - considering ordering this battery pack. How did the new battery with the upgraded BMS work out? Issues gone?
Many thanks! |
11-05-2020, 10:55 AM | #63 |
Getting Wild
Join Date: Jan 2019
Location: Knoxville TN
Posts: 95
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Re: 72V AC Drive Precedent Progress
It's been perfect. In for 6 months or so now, driven miles every day and it's had zero issues....
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11-05-2020, 10:58 AM | #64 |
Not Yet Wild
Join Date: Sep 2013
Location: South Florida
Posts: 37
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Re: 72V AC Drive Precedent Progress
Outstanding - reaching out to them today!
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11-07-2020, 12:57 PM | #65 |
Not Yet Wild
Join Date: Nov 2015
Posts: 3
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Re: 72V AC Drive Precedent Progress
Doug, great thread. Just wondering which Delta-Q charger did you get?
Thanks |
11-09-2020, 12:29 PM | #66 |
Getting Wild
Join Date: Jan 2019
Location: Knoxville TN
Posts: 95
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Re: 72V AC Drive Precedent Progress
Delta Q refused to sell a generic LiFrPo4 charger, so I purchased a LiFePo4 specific charger from Alibaba and have since purchased another. They have performed very well and automatically shut themselves off at full charge so that i can plug in overnight without worry....
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11-12-2020, 09:05 PM | #67 | |
Getting Wild
Join Date: Sep 2020
Location: The Redneck Riviera
Posts: 114
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Re: 72V AC Drive Precedent Progress
Quote:
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11-13-2020, 07:43 PM | #68 |
Getting Wild
Join Date: Jan 2019
Location: Knoxville TN
Posts: 95
|
Re: 72V AC Drive Precedent Progress
All those components stay and work fine. My fully charged voltage is just over 86V (The Navitas is good up to 100V)
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02-21-2021, 03:02 PM | #69 |
Not Yet Wild
Join Date: Oct 2020
Location: Carolina Beach, NC
Posts: 11
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Re: 72V AC Drive Precedent Progress
Bringing this thread back to life :)
Doug is the spec sheet posted early in this thread still good? I'm debating whether to do my own or order from RD as you did. I plan to get a quote in the coming days. On their website it looks like they have 4 72V choices now: 200AH, 150AH, 120AH and 100AH. From the current graph, it seems it should be spec'd for maybe 240A discharge (about 2C if 120AH pack), but the attached spec sheet has 120A (1C) continuous discharge with 200A max. I would think this would need an update. Would you agree? Also, I want to do the regen brake modification that changes the amount of regen current based on how hard the brake pedal is pushed. Does this pack tolerate the amount of regen that is provided by the Navitas 5k kit? I haven't seen a current graph of the regen current, so I wonder if you have that info as well? I'm also looking for update info on the regen setup as well. I've seen the posts from fstop and recall you mentioned it as well. Is there another thread about what components are needed and what setup is needed in the Navitas SW? Thanks! Rick |
02-21-2021, 10:18 PM | #70 |
Getting Wild
Join Date: Jan 2019
Location: Knoxville TN
Posts: 95
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Re: 72V AC Drive Precedent Progress
Here is the latest spec for the battery I purchased.
To convert to 72V you will need the battery, a new contactor and 12VDC converter Heavier cables and a good state of charge meter is also highly recommended. I don’t have any issues with current limitations, but more is always better :) I also added a Cateye bicycle speedometer to keep from getting tickets.... |
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