10-11-2022, 04:06 AM | #11 |
Not Yet Wild
Join Date: Oct 2017
Posts: 38
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Re: Lithium install
I got a LCD meter with my lithium kit which has really small gauged wires positive and a negative.
Ideally it should be wired to a on and off on the key switch.The guy i ourchased from has said it would be better wired that way. The original meter has 3 wires in a harness clip. At the minute ive wired the meter straight from the batteries positive and negative.Im getting some strange readings from it around 70% until i turn the key on and press the gas pedal the meter then reads 100% and volts 58.8. Anyone know if i can wire into the main harness? Thanks |
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10-11-2022, 08:49 AM | #12 | |
Not Yet Wild
Join Date: Aug 2021
Posts: 46
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Re: Lithium install
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10-11-2022, 01:48 PM | #13 | |
Gone Wild
Join Date: Apr 2008
Location: Western NY
Posts: 2,283
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Re: Lithium install
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10-11-2022, 05:22 PM | #14 |
Gone Wild
Join Date: Dec 2020
Location: Melbourne, Australia
Posts: 1,942
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Re: Lithium install
Are you sure about that 46v charging voltage EcoBattery? I think Augiedoggy’s battery is 42v maximum, not nominal. 46v would be way too high for a 36v nominal 12s LiFePO4, it’s 3.83v/cell. I would have thought that a maximum of 43.8v should be used but typically 42.6v (3.55v/cell).
Cheers Pat. |
10-11-2022, 06:05 PM | #15 | |
Not Yet Wild
Join Date: Aug 2021
Posts: 46
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Re: Lithium install
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However the voltage doesn’t really change the output current much. A 355W PV panel charging at 42V-43V still only has a theoretical max of 8.2A and a realistic max of 6.5A so it doesn’t change much. I bet real world it averages 3A-4A for most of the day. Not trying to be argumentative, just saying 15A isn’t feasible on 355W. |
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10-11-2022, 06:08 PM | #16 | |
Not Yet Wild
Join Date: Aug 2021
Posts: 46
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Re: Lithium install
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10-11-2022, 06:20 PM | #17 | |
Gone Wild
Join Date: Dec 2020
Location: Melbourne, Australia
Posts: 1,942
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Re: Lithium install
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Cheers Pat. |
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10-12-2022, 07:24 AM | #18 |
Gone Wild
Join Date: Apr 2008
Location: Western NY
Posts: 2,283
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Re: Lithium install
Yes its a 36v 12 cell diy pack made with 200ah 3.6v cells so the actual voltage at full charge is more like 42v. and yes I misread the solar panel sticker... The max fuse was 15a not output.
The amp specs stated on the panel is IMP-8.99a and isc-9.48a... the vmp is 39.5 and voc-47.7v I am going to be using the green mppt boost controllers which are popular for this on youtube. |
10-12-2022, 09:09 AM | #19 | |
Not Yet Wild
Join Date: Aug 2021
Posts: 46
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Re: Lithium install
Quote:
Don’t get me wrong, I love the idea of a PV panel roof, and already have carts with them, I just don’t want the expectations to be unreal. |
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10-12-2022, 09:13 AM | #20 | |
Not Yet Wild
Join Date: Aug 2021
Posts: 46
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Re: Lithium install
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