Truck refuses to start

well if it is weaker after charging then it isn't taking a charge
bad connections loose wire etc
how old are the batteries
they can freeze when in poor condition
windchill has no effect on the truck only the true temp
but yes still cold

all the winter tips need to be taken into consideration
good batteries
clean connections
full fuel tanks with antigel
saying it ran ok when I went home never works

 

the bad batt. will kill good ones,if you can test them after disconnect,might be time to put new batt. in? ck. alt. voit.

 

Need to warm those batteries up. It takes a long time to re- charge a cold battery.It could take a day to get it built up enough to crank., if dead.
I would remove batteries, take to a warm garage, allow to warm up, hook up charger, test and re-install only if fully charged. Might be time to buy new ones.
Find generator for block heater hook-up, if possible.

 

She's a diesel, it's cold- what`dyou expect?
It's cold, diesel will turn solid, and no starter can truly change that.

You've got a few hundred pounds of iron and and hydrocarbons that ain't gonna start spinning, any time soon in this weather, bud.

 

have you put a meter on the connections to see if you have a power drain when shut off?
even new batteries if run flat lose their electrolyte and will freeze

 

I'm guessing one of your new batteries flew south for the winter, load check them one at a time, since one bad battery will ruin a whole set.

 

one bad cell will ruin the whole battery and batteries hooked together will drain to lowest cell strength