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06-14-2019, 09:57 AM | #1 |
Not Yet Wild
Join Date: Aug 2018
Posts: 15
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My 48v/12v Reducer setup plan
Reducer setup plan;
1. 12g red wire from large bolt battery side of capacitor to pos intake wire with built in fuse on 48v voltage reducer. 2. 12g black wire from black yellow bullet wire behind battery 4 that connects directly to B- on controller to neg intake wire on 48v voltage reducer. 3. Yellow wire from 48v voltage reducer to blue wire at the switch (which I believe is the cold side/switched side). 4. Black 12g output wire from 48v voltage reducer to fuse block. 5. Red 12g output wire from 48v voltage reducer to fuse block. 6. All accessories wired to fuse block (radio, headlight/taillight, underbody LED lights). I’m mounting the 6 panel fuse block in the battery compartment. The 48v reducer is being mounted up front under front cowl space on metal bracket. All wires being ran through dash and under floor mat in little grove with main harness to battery compartment. Does anybody know what size amp fuses I should use in fuse block for Radio? Head/taillights? Underbody LEDs? Also, should I include a 48v relay on this? If so, do I install it anywhere on the red wire from capacitor to red input wire on 48v voltage reducer. |
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06-14-2019, 02:49 PM | #2 |
Not Yet Wild
Join Date: Aug 2018
Posts: 15
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Re: My 48v/12v Reducer setup plan
Pics
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06-14-2019, 07:47 PM | #3 |
Gone Wild
Join Date: Jan 2017
Location: Queensland Australia
Posts: 1,332
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Re: My 48v/12v Reducer setup plan
Great job!
Just a couple of things:
You do not need a relay because the trigger wire to the key switch does the same job. As for your fuse sizes. The best way to work it out is to connect your multimeter across where the fuse would be (take the fuse out) and set to measure Amps. Switch on the accessory and measure the number of amps that it pulls. Put in a fuse that can handle just a bit more than you measured. Cheers. |
06-17-2019, 09:59 AM | #4 |
Not Yet Wild
Join Date: Aug 2018
Posts: 15
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Re: My 48v/12v Reducer setup plan
Correct me if I’m wrong. When I have the key off, I have no drain on my battery pack from the 48v reducer. However, when the key is on, I will have some drain on the battery pack from the reducer even though all of my accessories are off. Is this where a 48v relay could help me? The relay would only connect the circuit when I turn on a accessory. If all accessories are off and the key is on...the relay would remain open and not deliver power to my reducer to drain my battery pack.
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06-17-2019, 08:12 PM | #5 | |
Gone Wild
Join Date: Jan 2017
Location: Queensland Australia
Posts: 1,332
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Re: My 48v/12v Reducer setup plan
Quote:
Just put a switch in the trigger wire between the reducer and the key. There's not much power on that line so any little toggle switch will work. |
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06-17-2019, 08:27 PM | #6 | |
Gone Wild
Join Date: May 2015
Location: Houston
Posts: 903
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Re: My 48v/12v Reducer setup plan
Quote:
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06-18-2019, 01:53 AM | #7 |
Gone Wild
Join Date: Jan 2017
Location: Queensland Australia
Posts: 1,332
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Re: My 48v/12v Reducer setup plan
True, but sometimes it's nice to have the control of the switch to stop other accessory switches (such as the signal arm) being knocked and accidentally turning things on.
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11-20-2023, 05:46 PM | #8 |
Not Yet Wild
Join Date: Jun 2018
Location: PSL, FL
Posts: 13
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Re: My 48v/12v Reducer setup plan
I have almost the same setup. Where I am stumped at is the connection to the key switch. The blue is wire is where I need to connect my yellow wire coming from the 30amp reducer. How did you connect yours, if you have a picture it would speak a thousand words. Thank you in advance.
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11-20-2023, 06:54 PM | #9 |
Born to be Wild
Join Date: Feb 2019
Location: Palm Harbor Florida
Posts: 2,729
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Re: My 48v/12v Reducer setup plan
You’re replying to a 4 year old post. You may be better off starting a new thread, and describe what kind of reducer you have.
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11-20-2023, 08:16 PM | #10 |
Not Yet Wild
Join Date: Jun 2018
Location: PSL, FL
Posts: 13
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Re: My 48v/12v Reducer setup plan
I know, it was worth a shot lol. I will start a new thread. Thank you!
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