04-06-2021, 09:00 PM | #61 | ||
Getting Wild
Join Date: Oct 2014
Posts: 102
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Re: Newest Leaf Modules
Quote:
I was very clear in exactly what I was looking for including cut off voltage. He said he could do a 42V unit that would only charge to ~53V and their 48V would go to 58.8V which is too high IMO. He said since their chargers are dum transformer based chargers, there is no option to adjust voltage. Quote:
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04-09-2021, 12:35 PM | #62 |
Getting Wild
Join Date: Oct 2014
Posts: 102
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Re: Newest Leaf Modules
Well Ray finally agreed to build me a charger that would be capped at 57.4V but he said no warranty, guarantee it would work, etc....
So I think I’ve decided to go with a Chargery BMS and their charger that pairs with it. The BMS communicates with the charger and adjusts charging current as the cells get close to full charge. Sent from my iPhone using Tapatalk Pro |
04-09-2021, 04:13 PM | #63 | |
Gone Wild
Join Date: Dec 2020
Location: Melbourne, Australia
Posts: 1,919
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Re: Newest Leaf Modules
Quote:
The charger doesn’t need to adjust anything except limit current to the maximum current you want to charge at. The batteries themselves will reduce their current demand (the amount of current they are asking for) as they become more charged. It has nothing to do with the BMS. When this current demand is higher than the current limit of the charger, the current will be limited by the charger. As the demand drops below the current limit, the charger will (and should) supply as much current as the batteries are asking for. Charger switch off should occur when the current reduced to 10% of the current limit value. So, a 10A charger should charge at 10A maximum and switch off when current reduces to 1A. Similarly, a 30A charger will charge at 30A maximum and switch off at 3A. Cheers Pat. |
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04-11-2021, 10:51 PM | #64 | |
Getting Wild
Join Date: Oct 2014
Posts: 102
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Re: Newest Leaf Modules
Quote:
I could have misspoken on how Jason explained the charger and BMS work together. Sent from my iPhone using Tapatalk Pro |
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04-19-2021, 10:24 AM | #65 |
Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,120
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Re: Newest Leaf Modules
Here are some pix from my build using a pair of 7S/3P Leaf modules. Cart is a 2010 Yamaha Drive, with Alltrax controller, D&D motor, 12 inch 215050-12 tires:
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04-19-2021, 10:25 AM | #66 |
Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,120
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Re: Newest Leaf Modules
Here a few more pix:
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04-19-2021, 09:58 PM | #67 |
Getting Wild
Join Date: Dec 2011
Location: Colorado Springs, CO
Posts: 83
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Re: Newest Leaf Modules
Looking good! Like that combo display.
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04-20-2021, 05:24 AM | #68 |
Not Yet Wild
Join Date: Jan 2021
Posts: 8
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Re: Newest Leaf Modules
Very nice Volt!
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04-20-2021, 07:00 AM | #69 |
Gone Wild
Join Date: Jan 2013
Location: Saint Petersburg, FL
Posts: 2,089
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Re: Newest Leaf Modules
Nicely Done VA! Can you share some details on that combo display?
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04-20-2021, 08:18 AM | #70 |
Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,120
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Re: Newest Leaf Modules
Display is a 4 line by 20 char display driven by an Arduino processor. I would prefer a fancy graphics display but I don't have the tools to create one yet. Next project.
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