I drive a new-ish freightliner for work and may have accidentally left the main switch in the cab on before leaving home this morning.
Posted by fingeringmystrings@reddit | Truckers | View on Reddit | 18 comments
so I do not own the truck. Saturdays are always our shortest days and I finished my day around 830am this morning and as I got home I started wondering if I left the main switch on and it's really bothering me. our end of day tasks involve turning off all switches including the main switch inside the cab, I made sure all lights were off except for the main (possibly). I do not know for sure if I left it on, I may just be paranoid but I do not want to call my supervisor for a false alarm. I do not work tomorrow and will be back Monday morning. I mean.......even if I did leave it on, it wouldn't drain the battery as long as all other switches are off, right??
Ancient_Cucumber2573@reddit
Maybe u left the oven on to maybe the truck is already on fire worrying about company equipment is a waste of time that truck has a auto shutoff after certain voltage ur fine
fingeringmystrings@reddit (OP)
lol I appreciate that
Beautiful-Slice166@reddit
Shouldn't completely kill it for 2 days even if you left something small plugged in. Worst case its a jump which if its a yard is a set of cables and a few minutes
Available_Quote_5567@reddit
I leave my main switch on all weekend to keep my fridge cold. I’ve left it for a week on vacation and never had an issue.
Environmental-Pear40@reddit
I'm assuming you mean a main cutoff switch, like just a regular battery cut off, not the ignition. In which case you're fine. It will not kill the batteries, that quickly. It honestly shouldn't kill the batteries at all. But almost every truck has some parasitic draw.
Though if you did mean you left the ignition on then the batteries are definitely dead.
fingeringmystrings@reddit (OP)
I definitely did not leave the ignition on, that would be extremely lame of me if I did that.
Ordinary-Willow-6761@reddit
I have a 16 and it’s now my back up truck. Will leave the main on for weeks and it fires up.
diggsalot@reddit
You're fine the computer cuts the power when it gets low unless you have something plugged into the inverter that plugs directly to the battery.
Environmental-Pear40@reddit
Well if the inverter is a good one and set up correctly it should also cut itself off if the battery gets too low. My cobra does it.
fingeringmystrings@reddit (OP)
It does have a frozen box with cold plates and I'm pretty sure that's its own separate unit that I have to also plug in at the end of the day
HowlingWolven@reddit
I never trip the battery switch off in my truck. That’s what the smart idle is for.
skeletons_asshole@reddit
It'll be fine. My truck doesn't even have a main switch and it always starts when I get there after home time, unless the batteries are total crap. It shuts things off automatically as the battery gets lower if things get left on (the fridge, for example)
If it doesn't, I'm sure someone can give you a jump or the shop has a jump box. It happens more than you'd think.
GoodGoodGoody@reddit
Not sure what you drive but their aren’t many bigger units without electrical master switches. Mechanics need them for fast electrical work among other things.
skeletons_asshole@reddit
Fleet of 2500 or so 579's, shop confirmed we don't have master switches, they manually disconnect if they need to. Former fleet of 5000 or so mixed trucks also didn't have master switches.
To me it would make more sense to have them but this is just what I've been told. Maybe they hid one up underneath somewhere that I couldn't find.
I do know that when I had the ECU glitch out and strand me at a dock in the Freightliner, breakdown had me pull the side off and pull the battery cable to reset, saying they didn't have any master switch.
fingeringmystrings@reddit (OP)
Its a class b freightliner with a box for frozen storage
fingeringmystrings@reddit (OP)
I hope you're right. I've only had the job for 3 months and this is my first time possibly forgetting to turn off the main switch.
Heather_Val@reddit
You should be fine. I drive a 24 freightliner. I don’t have one of those switches and I never have an issue starting.
Distinct-Event-7472@reddit
I’ve always hated trucks that had those switches or whatever you should be fine bro I left one on before