Parasitic load
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Laughing Gas
Joined: Nov 2014
Posts: 765
Likes: 5
From: Long Island, NY
Parasitic load
I installed a new starter today and when I was hooking up the batteries I noticed there was a small load. The interior lights were off, doors closed, hood light bulb removed. I checked the load with my Fluke and it was just slightly over 1 amp but then went down to 540ma, .5 amp. This seems a bit high to me, even at the .5 amp draw. I had other things to do so I could not look further into it.
The only thing I can think of is that because the batteries were disconnected for about 5 days that maybe there were some capacitors and maybe so dash cluster functions that were drawing a larger load then usual on first application of power.
Am I way off base?
The only thing I can think of is that because the batteries were disconnected for about 5 days that maybe there were some capacitors and maybe so dash cluster functions that were drawing a larger load then usual on first application of power.
Am I way off base?
Posting Guru
Joined: Nov 2012
Posts: 2,123
Likes: 5
There are several keep alive circuits that will slowly discharge when batteries are disconnected. When you connect they will recharge causeing this draw, as each reches it state of charge the rate lowers. This is what you are seeing as stated.
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Laughing Gas
Joined: Nov 2014
Posts: 765
Likes: 5
From: Long Island, NY
Thanks for the confirmation.
Laughing Gas
Joined: Dec 2005
Posts: 972
Likes: 224
From: Linden, Ca.
Yeah I have seen that. I crawled under my beast last night and it already has a gear reduction starter on it from the factory. So I think it is already turning over as fast as it can. I am trying to find the specs on these starters but it is being difficult. B.
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Fomoko1
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