Question about using a trickle-charger while truck is parked (aka home time)

Yeah my volt meter reads 12.5 after shutdown, when I'm using lights and power outlets it will drop down some. After sitting here for 6 hours or so it's reading 12.3.

 

Yup, mine also. 12.3 seems to be the stopping point for a long period if I don't open the fridge up.

 

If I have a bunch of stuff on I've seen it drop to 11.9, but once everything's off it climbs back up. I've been beating these batteries up.

 

Right around this time many Napa auto parts stores drop a pallet of type 31 truck batteries on the floor in the showroom for $89.99 and guaranteed for I think 18 months.

 

Oooooooo....Doogie Houser is on.

 

That's what I paid at a wholesaler in KC. East penn Dekas.

 

By the way. I have a battery alarm in the sleeper. It goes off at 12 volts. There have been times I shut the Rigmaster off to check oil and other stuff and forgot to turn it back on.

 

I still need to get one. Is yours direct wired? I just have the meter in the socket. I give her a quick little midnight glance.

 

Everything, EVERYTHING in my truck is direct wired. There are no wires going to cigarette plugs. I drilled a hole in my sleeper panel and ran the wire in back of the meter and connected to a 12v source. My GPS, WIFI hot spot, Sirius and phone charger are all wired behind dash. I ran all the wires into a hole I drilled between dash and windshield.