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trickle charger wiring off ignition

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=106670
Printed Date: May 15, 2025 at 11:20 AM

Topic: trickle charger wiring off ignition

Posted By: cswminty
Subject: trickle charger wiring off ignition
Date Posted: August 09, 2008 at 3:50 PM

i'm struggling to make sure that i wire this correctly and am not making much sense.i have a trickle charger that i want to connect to the 12v on the cigarette lighter in the car and earth too.

I want to wire it though, so that when the ignition is On, it breaks the connection between the trickle charger and the car in order to protect the alternator.

And then when the ignition is turned off, it connects the circuit again and the trickle charger supplys the circuit with a feed.

can i do this with a single relay or will i need more? and how can i wire this up ???

Thanks
Chris.

Replies:

Posted By: i am an idiot
Date Posted: August 09, 2008 at 9:46 PM

87A to the constant wire that feeds the lighter. 30 to the lighter. 85 to ground. 86 to accessory or ignition switched wire.

Posted By: dualsport
Date Posted: August 10, 2008 at 7:53 AM

How are you able to drive around with a trickle charger connected? Or is the car always stationary in a garage?

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