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My car won't start

1K views 19 replies 10 participants last post by  TNMRSisbest 
There is actually a good reason to do that, if your charger uses a voltage or current sensor to program the charge, then having other stuff hanging off the terminals affects the process. And if your charger does not have a sensor, you are probably going to overcharge the battery and ruin it, so get one that does.
I am just running a 1amp charger with sensor. What's drawing power when the car is off? I guess radio presets and ECU?
 
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