2015 Keystone Passport Battery Drain
Hi All, We just got our new 2670BH Keystone Passport. I intend on dry camping and thus planned on adding a second 12V battery. Before I got around to it I noticed that my batter would be dead les...
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i am wndering if the truck alternator charges the house battery when towing. if so, there may be a malfunctioning isolator solenoid stuck on , or a malfunctioning electrical diode or something like that.
with such high current drain, i'd be surprised if you don't get bad sparks disconnecting the battery positive terminal ( be careful if you try}.
to measure current with many mulitmeters like you tried w/ negative term disconnect, you set meter to read DC amps and move the red probe to a different plug opening. read user manual. you will have only 10 seconds to measure this, as it heats up multimeter (at least my walmart is like this)
with such high current drain, i'd be surprised if you don't get bad sparks disconnecting the battery positive terminal ( be careful if you try}.
to measure current with many mulitmeters like you tried w/ negative term disconnect, you set meter to read DC amps and move the red probe to a different plug opening. read user manual. you will have only 10 seconds to measure this, as it heats up multimeter (at least my walmart is like this)
