What is minimum voltage to start the truck?

659906

{"text":"i had 11.5 this morning but truck wouldn't start. keep saying low battery, diconnect loads or start the engine. i had nothing hooked.","videos":"[]","link":"{}","pics":"[]","canComment":true}

87527

{"replyTo":"","text":"Next time it happens, if you have an APU, run your APU for about 5-8min then try starting your truck. It should come on then. ","replyToPid":0}

786444

{"replyTo":"","text":"It isn't the volts per se, but the amps. A 19v laptop battery is not going to start diesel.\n\nMost likely, you are experiencing a drop of battery capacity due to cold weather.  At 32 degrees Farenheit, your batteries are running at ~75% capacity, or the equivalent to removing 1 group 31 battery in a 4 battery pack.  Batteries are rated at 85 degrees F.","replyToPid":0}

670777

{"replyTo":"

786444 发表于 2019-11-12 19:39:47 It isn't the volts per se, but the amps. A 19v laptop battery is not going to start diesel.\n\nMost likely, you are experiencing a drop of battery capacity due to cold weather.  At 32 degrees Farenheit, your batteries are running at ~75% capacity, or the equivalent to removing 1 group 31 battery in a 4 battery pack.  Batteries are rated at 85 degrees F.

","text":"Very good information. What I do every October or so is unhook all the batteries and let them set for 24 hours. Then use a battery load tester on each one. I bought my load tester on amazon. This will give you a true picture of the health of each battery ","replyToPid":249537}

38537

{"replyTo":"","text":"at least 13","replyToPid":0}

103619

{"replyTo":"","text":"11.7 in my volvo at -2f","replyToPid":0}

786444

{"replyTo":"","text":"12.3v is about as low of an assumed state of charge my trucks can go before they are unable to turn over an engine.  With cold weather going against you, again, #2 diesel has a bit more wax and crap than #1 diesel, which at lower temps, will not flow correctly through a fuel filter or injector.  \n\nEver tried to suck jello thru a straw?  Try asking your engine to suck jello thru a fuel filter. \n\nhttps://youtu.be/WUBcxr5mV4o","replyToPid":0}

542330

{"replyToPid":0,"replyTo":"","text":"12 is needed but sometimes that is not enough 12.1 is best just Incase it doesn’t catch fast enough. "}

682141

{"replyTo":"","text":"time for new batteries. maybe just 1, load test. better to switch all once. go with an agm battery they last longer and drain is slower","replyToPid":0}

853837

{"replyTo":"","text":"12","replyToPid":0}

329764

{"replyTo":"","text":"Mine starts no problemo 11.9","replyToPid":0}