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Old 12-06-2023, 01:11 PM   #1
Bus Geek
 
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DC > DC Charger Ignition Wire Placement

Iím getting ready to install a Renogy 20A DC > DC charger in my bus. Iím looking for an easy connection point for the ignition wire.

The bus is a 2007 Chevy Express Cutaway with a Thomas Minotour body.

Any tips appreciated!

Thanks

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Old 12-06-2023, 06:04 PM   #2
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You donít really need an ignition wire tire in - all you need is some sort of switched positive input. I used a spare switch in the driverís control panel as an on/off switch for my Renogy 40A dc-dc charger. I can turn it on or off when the vehicle is running without worrying about it automatically coming on when the ignition switch is on (but bus might not be running)
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Old 12-06-2023, 06:24 PM   #3
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Originally Posted by desrtdog View Post
You donít really need an ignition wire tire in - all you need is some sort of switched positive input. I used a spare switch in the driverís control panel as an on/off switch for my Renogy 40A dc-dc charger. I can turn it on or off when the vehicle is running without worrying about it automatically coming on when the ignition switch is on (but bus might not be running)
I thought about that. I worry about forgetting and drawing the starter battery. I might go this way unless I can easily pinpoint the tie in
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Old 12-06-2023, 06:56 PM   #4
Skoolie
 
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Originally Posted by Danjo View Post
I thought about that. I worry about forgetting and drawing the starter battery. I might go this way unless I can easily pinpoint the tie in
Understand. I should have been more specific - the switch on mine is wired such that with the bus off, no current will flow even if the switch of left on. Not sure how your panel is set up, but I had loads of extra spots in the main breaker panel so was easy for me.
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Old 12-06-2023, 06:58 PM   #5
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Originally Posted by desrtdog View Post
Understand. I should have been more specific - the switch on mine is wired such that with the bus off, no current will flow even if the switch of left on. Not sure how your panel is set up, but I had loads of extra spots in the main breaker panel so was easy for me.
Iíll have to see if any of those switches is only hot at key-on. Iíd really prefer engine-on
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Old 12-07-2023, 07:52 PM   #6
Skoolie
 
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Quote:
Originally Posted by Danjo View Post
Iíll have to see if any of those switches is only hot at key-on. Iíd really prefer engine-on
Have you got a pic of the driver control panel (or whatever the switch panel is called)?
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Old 12-08-2023, 11:18 AM   #7
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Originally Posted by Danjo View Post
Iíll have to see if any of those switches is only hot at key-on. Iíd really prefer engine-on
I'm with you on this. I haven't installed mine yet, but when I do it will be with engine-on, it will have a switch near the driver (which I'll normally keep off), AND a small LED when switched on.

Reasoning is that I want control over the alternator load in case I'm in heavy traffic on a hot day.
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Old 12-08-2023, 11:25 AM   #8
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Originally Posted by Rucker View Post
I'm with you on this. I haven't installed mine yet, but when I do it will be with engine-on, it will have a switch near the driver (which I'll normally keep off), AND a small LED when switched on.

Reasoning is that I want control over the alternator load in case I'm in heavy traffic on a hot day.
Good point. I guess Iím just going reclaim the wheelchair lift toggle
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