03-12-2022, 03:31 PM | #21 |
Not Yet Wild
Join Date: Mar 2022
Posts: 9
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Re: Allied 12V x 4 problems
Yes I'm sure, I tested with three different meters including my Fluke. I even had a friend come check it just to mess with him. I've tried charging them with a 12v lithium charger and no dice. I've tried contacting Allied AGAIN, a few minutes ago by starting a new ticket, or new email. We will see. I'm ready to throw their kit in the trash at this point.
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03-12-2022, 04:40 PM | #22 |
Gone Wild
Join Date: Dec 2020
Location: Melbourne, Australia
Posts: 1,919
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Re: Allied 12V x 4 problems
Sorry to be skeptic about the reverse polarity but what you’re describing should not be possible. A reverse voltage in the mV region can occur if a reverse voltage is applied, but to reverse charge 4 lithium cells to almost full voltage, and for those cells to MAINTAIN that voltage seems impossible to me. Either way, the BMS in that battery is shot. A BMS shouldn’t be able to pass a reverse voltage. It will have a direct short between the B- and C- connections.
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05-06-2022, 06:51 PM | #23 | |
Not Yet Wild
Join Date: Oct 2020
Posts: 8
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Re: Allied 12V x 4 problems
Quote:
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05-06-2022, 10:53 PM | #24 | |
Gone Wild
Join Date: Dec 2020
Location: Melbourne, Australia
Posts: 1,919
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Re: Allied 12V x 4 problems
Quote:
I didn’t comment about your 4x12v lithium batteries in your other thread as I’ve already done so many times in the past here. It is true, you won’t have any problems now, provided all batteries are fully (or equally) charged when you first install them but as time goes on they will become unbalanced, reducing total capacity. Once this happens you’ll have to charge each battery individually with a 12v lithium charger to bring them back into balance. You can search around the forum for my other posts on this subject, there are many. Cheers Pat. |
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05-07-2022, 12:24 AM | #25 | |
Not Yet Wild
Join Date: Oct 2020
Posts: 8
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Re: Allied 12V x 4 problems
Quote:
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05-07-2022, 02:17 AM | #26 |
Gone Wild
Join Date: Dec 2020
Location: Melbourne, Australia
Posts: 1,919
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Re: Allied 12V x 4 problems
You didn’t mention that. Yes, that should be ok.
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