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Unread 07-22-2015, 11:52 AM   #1
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Default 40 amp reducer?

Looks like I'm maxing out my 30 amp (48v to 12v) reducer. Is there a reducer that puts out 40 amps or more? Is that even recommended?

Currently, I am running my LED head/tail lights, a standard marine grade stereo/cd player with 2 speakers and a pair of LED fog lights.

I just installed two strings of waterproof LEDs and that appears to be maxing thigs out. All runs well when I'm not actually driving; although I do notice the stereo reception weakens.

Once I start driving around, with in a few minutes, I lose the string lights. All else seems to keep running. Sometimes the string lights go out if a hit a bump too hard.

I will double check all my connections to see if anything is loose. But I'm thinking its the amount of amps I'm pulling.

PS, I really don't want to add another battery for my accessories.....

Thoughts?
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Unread 07-22-2015, 01:04 PM   #2
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Default Re: 40 amp reducer?

Hard to imagine that you are pulling that many amps...

You can easily test your hypothesis by driving around with just the under lights ON, if You still have the problem, it is not a load issue.

Someone posted the same issue about those lights, going off when You hit a bump, maybe it is the Chinese relay in the control box bouncing.

You can tap on the control box with your hand and see if the lights go OFF, if so, try adding some foam padding to the mounting to absorb vibration.
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Unread 07-22-2015, 01:17 PM   #3
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Default Re: 40 amp reducer?

Quote:
Originally Posted by Sergio View Post
Hard to imagine that you are pulling that many amps...

You can easily test your hypothesis by driving around with just the under lights ON, if You still have the problem, it is not a load issue.

Someone posted the same issue about those lights, going off when You hit a bump, maybe it is the Chinese relay in the control box bouncing.

You can tap on the control box with your hand and see if the lights go OFF, if so, try adding some foam padding to the mounting to absorb vibration.
Interesting. Will try all of that. I ran out of time last night and the wife gets home tonight. So may be a day or two before I have time to mess with it again. Any Idea on where I might fined that post of the string lights and bad controller>?

Thanks Sergio!
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Unread 07-22-2015, 01:37 PM   #4
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Smile Re: 40 amp reducer?

The best way to really know what your amp load is by using a DC low voltage amp clamp. You then turn on everything and read the actual amp draw to know where you are at. Chances are better that your DC to DC converter is going bad instead of an overload issue....my two cents.
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Unread 07-22-2015, 02:23 PM   #5
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Default Re: 40 amp reducer?

If the existing converter isn't the issue you could just add a second one but Like Sergio says I agree that is a lot of juice for what your saying.
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Unread 07-22-2015, 05:24 PM   #6
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Default Re: 40 amp reducer?

Some equipment is very sinsitive to voltage surges. You can put a diode in line with what ever is dropping out. That should help.
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