thunderbird1
New Member
I have two batteries on my boat. With the selector switch set to number 2 (my house battery), the number 1 battery continues to discharge. Over a weekend, number 1 might drop from 12.6v down to 12.2v. On some weekends we have observed the number 2 house battery (the one selected) discharge less than the suspect number 1. Odd huh?
Here is where the mystery gets more challenging. When the battery selector is set to off, both batteries remain charged. This rules out items which bypass the battery selector switch such as the bilge pump. Moreover, the battery is probably not defective because it does not discharge when the selector is set to off.
Any idea what might be draining my battery?
Here is where the mystery gets more challenging. When the battery selector is set to off, both batteries remain charged. This rules out items which bypass the battery selector switch such as the bilge pump. Moreover, the battery is probably not defective because it does not discharge when the selector is set to off.
Any idea what might be draining my battery?