01-29-2022, 03:43 PM | #1 |
Not Yet Wild
Join Date: Feb 2020
Location: Lake Placid, NY
Posts: 73
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Battery set to on or off when charging Lithium batteries
When charging lithium batteries, should the battery pack be on or off?
I received no instructions with my delivery. |
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01-29-2022, 03:58 PM | #2 |
Gone Wild
Join Date: Oct 2016
Location: Dundee quebec
Posts: 3,190
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Re: Battery set to on or off when charging Lithium batteries
Sorry I can't help with an answer, but I noticed you are close to me. Wondering what are you doing about the cold weather and charging with your Lithium? I noticed the warranty on Extreme's site does not cover the battery at "extreme" temps which they stated at BELOW 32 degrees f.
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01-29-2022, 04:15 PM | #3 |
Gone Wild
Join Date: Dec 2020
Location: Melbourne, Australia
Posts: 1,919
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Re: Battery set to on or off when charging Lithium batteries
A general answer as you gave no specifics of your battery or charger is either, It shouldn’t matter.
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01-29-2022, 04:27 PM | #4 |
Gone Wild
Join Date: Jul 2012
Location: Central FL
Posts: 1,195
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Re: Battery set to on or off when charging Lithium batteries
Here's my .02, and I'm going to take a lot of liberty since you didn't list important specifics like Pat mentioned.
I assume you have a drop in pack in a case with a built-in BMS and switch. If you switched the pack to "Off" position it should break the circuit of the cells and thus all power from it, including the BMS. Therefore you shouldn't be able to even charge it if switched to Off. Again, trying us to help you without more details is at best a guessing game. |
01-29-2022, 05:42 PM | #5 |
Gone Wild
Join Date: Dec 2020
Location: Melbourne, Australia
Posts: 1,919
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Re: Battery set to on or off when charging Lithium batteries
Cutting power to the battery shouldn’t disable the BMS. Best practice design is to always have it protecting the cells regardless of load or charge.
Having thought about it further, if all you have coming from the battery are two terminals, positive and negative, switching off the battery will most likely prevent charging. |
01-29-2022, 07:22 PM | #6 |
Not Yet Wild
Join Date: Feb 2020
Location: Lake Placid, NY
Posts: 73
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Re: Battery set to on or off when charging Lithium batteries
Thank you Pat911 and UncleJerm76 for your responses.
I have an Extreme Team 48v 100ah lithium battery. (see attached photo) After hooking up the charger and plugging it in, it would not charge the battery with the battery switched to off. When I switched the battery to on, the charger worked. I have been unable to connect to the BMS via bluetooth (again, no instructions). You can follow my Lithium install here. |
01-29-2022, 08:04 PM | #7 | |
Not Yet Wild
Join Date: Feb 2020
Location: Lake Placid, NY
Posts: 73
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Re: Battery set to on or off when charging Lithium batteries
Quote:
In late April, I bring it back north, where it stays at my condo adjacent to the golf course. |
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01-29-2022, 08:32 PM | #8 |
Gone Wild
Join Date: Oct 2016
Location: Dundee quebec
Posts: 3,190
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Re: Battery set to on or off when charging Lithium batteries
Darn. I was hoping you or Extreme found a practical solution for people who use/work these buggys everyday.
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01-30-2022, 05:46 AM | #9 |
Gone Wild
Join Date: Dec 2020
Location: Melbourne, Australia
Posts: 1,919
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Re: Battery set to on or off when charging Lithium batteries
The only solution to charging lithium at below freezing temps is to heat the pack. No other way around it. Serious irreversible damage will be done if charging is allowed to occur below 0degC. It is also dangerous to do so.
@LakePlacidGolfer, How are you trying to connect the Bluetooth? By default, the Daly BMS which I believe is being used goes into sleep mode after 5 minutes. To wake it up you need to either draw power from the battery or charge it up. Once awake, you connect to it directly from the Daly app, not the Bluetooth menu of your phone. From the app you should be able to search and connect to the BMS. Cheers Pat. |
01-30-2022, 12:17 PM | #10 |
Gone Wild
Join Date: Oct 2016
Location: Dundee quebec
Posts: 3,190
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Re: Battery set to on or off when charging Lithium batteries
I guess I am hoping one of these companies building packs will offer them in a heated/cooled "jacket" like they have to do for electric cars, for those of us who have 4 seasons. I realize that the pack will have to have a little more capacity to handle the energy requirements of keeping the battery "climate controlled" during the day when off the charger, but how much more I am not sure.
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