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Old 07-11-2016, 09:03 PM   #11
Patela2oh
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While we're on them 2 questions

1) I'm assuming they kick out a load equal to the draw? What I mean is that of its a 30a its only putting out 30a if the device draws that much? I'm trying to figure out the effect on the pack / runtime.

2) can 2 be put in parallel to achieve a higher amp. Rather than splitting loads this would be easier for fuse wiring etc...


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Old 07-11-2016, 09:46 PM   #12
Isaac-1
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Default Re: Let's talk Voltage Reducers

Most (all) modern DC-DC converters are over 85% effiecent at converting power, some of the newer designs are close to 95% effiecent. This is generally fairly linear throughout the output range, also many models will output up to 150% of their rating for a short time, as output limit is usually a function of heat disipation ability.
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Old 07-12-2016, 11:32 AM   #13
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Quote:
Originally Posted by Isaac-1 View Post
Most (all) modern DC-DC converters are over 85% effiecent at converting power, some of the newer designs are close to 95% effiecent. This is generally fairly linear throughout the output range, also many models will output up to 150% of their rating for a short time, as output limit is usually a function of heat disipation ability.


Thank you, it's for a audio system. The amps are fused at 40 A each but that's assuming 2ohm resistance, bridged and full volume. The reality is 4ohm, un bridged and 25-35% volume. Just don't want to end up setting anything on fire


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Old 07-23-2016, 11:26 AM   #14
Tha_B_Man
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Default Re: Let's talk Voltage Reducers

FWIW. I have been using a $12(Ebay) - 48 to 12v 10a reducer for lights and radio for quite awhile.

Can someone post a link to the switch that would be used on the positive lead.
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Old 07-23-2016, 08:35 PM   #15
Epb
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Default Re: Let's talk Voltage Reducers

Its the same relay used in the charger. I tried finding the pic on my tablet and cant but sergio has posted it a few times. Prettyslick to use the key and works perfect for my aux battery set up. I dont care i have to sesrch for stations or set controls each time.
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Old 07-24-2016, 10:19 AM   #16
flyons78
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Default Re: Let's talk Voltage Reducers

Quote:
Originally Posted by Bwsooner6 View Post
So should a switch be installed on the (+) wire from the battery to the reducer, so that its not "always on" and draining the battery?
Question... What if you leave the + connected to the battery pack and move the negative for accessories (voltage reducer, etc) to the B- of the controller? Wouldn't this add switching as well as make sure your controller gets first dibs on the power pull off the battery pack?
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Old 07-24-2016, 07:31 PM   #17
DKRgoods
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Default Re: Let's talk Voltage Reducers

Here is the one I use. http://www.ebay.com/itm/Golf-Cart-36...EAAOSwxH1UF0Fo
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Old 07-24-2016, 08:10 PM   #18
Patela2oh
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Where are you guys mounting your reducers?


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Old 07-25-2016, 05:48 PM   #19
DKRgoods
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Default Re: Let's talk Voltage Reducers

I have a 99 ClubCar and put mine on the frame behind the two center batteries. There were holes there so i just bolted it down. Used a busbar for my ground and ran the wires under the frame.
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