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need a 12v, one way circtu from2 sources. with low voltage cutoff

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jbates58

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hi all.

well as the title states, i need 2, one way crcuts, to run at 12V, that a capable from passing 10A constant, but with voltge cut off, so that when the voltage gets to a certain point, they will then disconect the bttery from the circut.



basicly, i have 2 battries that are on the way out, but before they are totaly scewed, i want to make the most of them on my camper triler, it already has a battery for runnng lights and cd player etc..., but i find its capaity (75Ah) is sometimes a bit to small, so i wat to put the 2 old ones from my 4wd on the circut aswell, but since they are both dying, want the trailer battery to be protected from the others draining it, by a 1 way circut (eg. a diode) but, t nees to be capable of 10A constant, and 15A bust. but when the battery voltag falls blow a preset liit, it will the cut it out of the circut, and stop it from flattenig further.

anyou ofer any suggestions of kts that are available for this application.


cheers

jbates58
 
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