School me: 24v trucks in the USA

[hj 60]

No problem getting 24v stuff in europe, all/most trucks are 24v (also cargo trucks and wheel chairs)
I don't like inverters and boxes as it is a fire hazard.

I would never put a 12v winch in a 24v system, use the 24v torque and double line speed (12v 3.86 (1.18) vs 24v 6.0 (1.83) with less amps.

12V DC PERFORMANCE SPECS
Line Pull
Lbs.(Kgs.) Line Speed
FT./min(M/min.) Motor
Current Pull by layer
layer/Lbs(Kgs.)
0 30(9.14) 67 amps 1/12000(5443)
2000(910) 14(4.27) 140 amps 2/11120(5044)
4000(1810) 8.62(2.63) 210 amps 3/10340(4690)
6000(2720) 6.92(2.11) 250 amps 4/9770(4432)
8000(3630) 5.80(1.77) 320 amps 5/9250(4196)
10000(4540) 4.39(1.34) 370 amps
12000(5440) 3.86(1.18) 440 amps

24V DC PERFORMANCE SPECS
Line Pull
Lbs.(Kgs.) Line Speed
FT./min(M/min.) Motor
Current Pull by layer
layer/Lbs(Kgs.)
0 31.94(9.57) 24 amps 1/12000(5443)
2000(910) 11.7(3.57) 105 amps 2/11120(5044)
4000(1810) 9.5(2.90) 129 amps 3/10340(4690)
6000(2720) 8.5(2.59) 152 amps 4/9770(4432)
8000(3630) 7.5(2.29) 175 amps 5/9250(4196)
10000(4540) 6.5(1.98) 198 amps
12000(5440) 6.0(1.83) 221 amps

Search results for: '24v'

My water cooker is 24v (like winch keep power users at 24v I think) , and the radio has an inverter, also an plug in inverter for the trailer lights.
Led remote search light is 12-24v by design like most led, just plug in original lighter socket.
No problem with all the websites delivering at your doorstep.
I use 12v air compressor, that would be nice to have 24v as it is a power user, but I like to keep money in the bank account and also have 12v car.

nice 24v air: 24-Volt DC Compressors

24 volt compressor nodig? Bestel uw 24v compressor online! - MATTECH

But

 

[fireball]

Inverters are a fire hazard? Please explain.

 

[Behemoth60]

FWIW: Clarion RG9451

I have a Cat Radio, a take out from some piece of equipment. Being Cat, it's pretty rugged, 24V, but is just an AM/FM radio. I've not seen a 24V head unit that has 'modern' features... like a double DIN with Navigation and back-up camera and Android Auto.

HAM radios are also a problem.

 

[Ghostrider I]

I'll let you in on some insight, as my HDJ-80 is a 24V/12V. Huh? What do you mean? Since mine is European spec came from the Canary Islands, for starting it uses 24 volts for the glow plugs rarely needed in my neck of the woods. However, for accessories it runs 12 volts. This is accomplished by an I think an isolator,/inverter however I am still trying to make sense of it all.

With that said, your desire for a European spec truck will have TWO batteries if it is a diesel, but not necessarily a 24 volt.

 

[woytovich]

Thanks for all of the info.... Keep it coming!

 

[Behemoth60]

my HDJ-80 is a 24V/12V. Huh?

HDJ-80's have a 24V starter, and something called a 'Series-parallel' switch. Your two batteries go to this switch, and 99.9999% of the time, the switch is in 'parallel' mode, meaning you have a 12V truck, with two batteries in parallel.
When you engage the starter (that other 00.0001% of the time), the series parallel switch goes into 'series' mode... and the two batteries are linked in series temporarily, to deliver 24v of power to the starter. There's some magic along the way so you still maintain 12V constant power to the rest of the truck. As far as I know (and I there's a lot about these new-fangled Cruisers that were built after 1989 that I know nothing about) this series parallel switch is just an HDJ-80 thing.... please educate me if I am wrong on this.

This clever bit of kit gets your starter lots of volts for fast and easy starts, but sadly, the rest of your truck only gets half voltage (12V) the rest of the time.

I am putting a 'series-parallel' switch onto one of my trucks I am building (12V) to run my 24V Ready Welder on a 12V truck.

Oh yeah. Welders. We haven't talked about Welders yet. Absolutely the best feature of a 24V truck, is the ability to run a Ready Welder right of the batteries with no hodge-podge-jiggery-pokery jumper cables B.S. I have used my 24V Ready Welder a LOT!

 

[Ghostrider I]

Behemoth60, thank you for the explanation.

 

[Loober]

@Behemoth60 to add to the welder topic, most toyota diesels at least mine has the manual idle up knob, which also really helps when welding being able to bump up the idle without having to rig something up.

 

[SKULLYOTA]

What about fuses on a 24V cruiser? My new HZJ73 is a 24v and will regular parts store/walmart/etc. 12V blade fuses work for replacements?

 

[BreckenridgeCruiser]

Volts don't affect fuses... Just amps..

Just make sure to use the correct fuse for each circuit.

 

[RudigarP]

Things I have learned with my 24v HJ60 in the 12v dominant USA.
1. Buy a good 24v to 12v converter. I use a Sure Power switched dc-dc converter. Because it is switched I can have all the accessories turn off with the ignition and still have a constant for radio memory with out any extra switches or center tap.
2. Remember that the truck will put out close to 29v when running higher RPMs look for accessories rated to 30v or higher. Or you run the risk of frying them (like LED lights).
3. Use conversion charts for replacement bulbs. Auto parts counter people look at you with confusion when you ask if they have a 24v version of 1156 bulb. Here is a chart from Wagner http://www.fme-cat.com/Docs/4102.pdf
4. Look outside of the automotive industry for 24v goods. There are a lot of electronics available in the marine, heavy equipment, buses/trucking, and military that are easily adapted for use in the cruiser.

 

[seaken]

The acccesories can get complicated.

I've got 24v fog lights, back up lights and LED light bar. The arb fridge and Compressor both run on 24v. I've got a blue sea dual USB charger also on 24.

My Harrop elockers want 12v, as does the stereo, hella map lights, 12v plug for Garmin and cb and ham radios.

I still need to figure out if I want to spend the time to sort out the 24-12 v 7pin trailer harness.

View attachment 1809885

Garmin can run on 24 Volt

 

[dare]

My GFs brother has a 24V HJ60. He runs a second alternator with a 3rd battery for all his 12v needs. Aside from the challenge of fitting in the second alternator IMO it's pretty much the perfect solution. He needs an auxiliary battery for the touring/camping they do anyway.