24v Input Query

rocketroy · Occasional Visitor Joined: Jul 18, 2005 Posts: 8

hi,
i have an iCN 610 and that works off 24v with no problems at all!
i use it in my 05 Renault Magnum,

cbbella · Occasional Visitor Joined: Jun 17, 2005 Posts: 2

I use tt5 on my mobile phone in my truck with no problems but i did have a problem with my 7" LCD tv by roadstar, i plugged it into the cigarette socket in the truck which i thought was 12v and it blew my tv. when i rang a repair centre they told me that even though the tv cable was fused the 24volts still got through to the tv before eventually blowing the fuse in the tv cable

gangalee · Posted: Sat May 27, 2006 12:59 pm Post subject:

I am a trucker and I drive a 04 Daf 85, this unit only has a 24volt lighter socket. All my navigation equipment is dual 12/24 volt rated and works fine.

When I was an agency driver I remember using a 12v rated power supply which I bought from Maplins on my laptop. An hour into my journey and the power supply started smoking and smelt like it was burning, I quickly removed the plug from the socket. Further inspection revealed no damage to the laptop but the power supply was well and truly fried and the worrying part was that the fuse in the power supply didn’t even blow.

Eventually I would like to purchase a pocket PC to replace my laptop system. But as far as I know none of the Pocket PC’s has dual 12/24 volt usage.

Does anyone know of any Pocket PC’s that have dual 12/24 volt input as standard?

I can get around the problem by lugging my 24v inverter around. But I’d rather not!
_________________
Gangalee
LGV Class 1, Garmin Streetpilot 2720
Mapsource 2010
Lowbridge-Speed Camera Data

gangalee · Posted: Sat May 27, 2006 10:36 pm Post subject:

I have been doing some research and the following system seems to show some promise-:

Pocket PC -: HEWLETT PACKARD IPAQ RX 1950 COLOUR HANDHELD PREMIUM PC from PC world www.pcworld.co.uk price Inc vat £187.23 online

Vehicle mount: HP rx1950 H4150 H4155 car mounting kit with speakers 12/24 volt
From www.handnav.co.uk/ £39.99

GPS Receiver-: not decided yet but I may stick with a cable one, as all that messing about with batteries with blue tooth receivers seems a pain. I already have an awesome Pharos Gps receiver for my laptop. I heard I can get a cable to modify it to work with a pocket PC, I will investigate this

Software-: Either Co-pilot live or infomap Pocket Navigator 6 for PocketPC because the ability to choose road types in either software is very important to me as a trucker. I love navigator on the Laptop and if the handheld version is as good I will go for that.
The price is decent too.
I am avoiding tom tom because although it’s great for cars it’s route calculation is abysmal for trucks. imho

Any comments or recommendations on my choices?
_________________
Gangalee
LGV Class 1, Garmin Streetpilot 2720
Mapsource 2010
Lowbridge-Speed Camera Data

theripper · Posted: Sun Jul 09, 2006 11:41 pm Post subject:

The Arkon mount for ipaq 2490 is 12/24 v I have used this for a few months now with no problems.
Also if you don't want a powered mount Maplins do a 12/24v car adapter with assorted connectors one of which fits nicely into the ipaq charging plug, and has a variable output for £9.99
Hope this helps

theripper

thenudehamster · Posted: Thu Aug 03, 2006 11:58 am Post subject:

If it's any help, several guys at work have TomToms (including me with a 510) and a couple have Garmins; all are 24v compatible with no problems. Normal voltages for 12v systems are 13.6 - 14.2 when the alternator is running, and approximately double for 24v systems; add a tolerance factor and you'll get around 18v and 35v respectively as the maximum level tolerable by the PSU.
How it deals with the input voltage depends on the internal construction of the PSU - transformer/inverter and simple resistive arrangements will not tolerate the wrong input voltage properly; regulated ones will.

On the subject of using a 12v adapter on 24v, and it not blowing the fuse, this is perfectly understandable. At 24v, to produce the same output current, you'd only be using half the input current; the fuse wouldn't even get to its working current, let alone the fusing current, until the internal components finally melted and shorted.

Incidentally, I did find that using a 12v heated coffee cup on 24v kept the coffee well hot - but melted the plastic internals of the cup when it was less than half-full...
_________________
Barry H... thenudehamster - don't ask; it's not worth the effort
Any opinion stated above is warranted to be worth exactly what you paid for it.

Oldboy · Posted: Thu Aug 03, 2006 7:22 pm Post subject:

J1mmy · Posted: Mon Oct 16, 2006 2:46 pm Post subject:

I have used tomtom and navman, both original in car chargers are rated input:DC10V ~ 35V and both worked no problems in both our car and my truck. The Navman charger is actually marked as such, but not tomtom, though their web site clearly states it will work on 24V.

I have just bought a PDA - Acer N35 - and am trying to find out if the in car charger will work on 24V as well............

As a recovery truck driver, I need to have details of car and commercial garages, as well as the bridge heights etc, so opted for the PDA as I can store details in the outlook contact list, and navigate to them direct from contacts.

I have a duff memory card (damn PDA only arrived today too!), so cannot set it up for gps yet - I have tomtom navigator 6 to put on, any thoughts on its use? - is it good, mediocre or what?

Cheers,
Jim
_________________
If it ain't broke, fix it 'till it is!

alix776 · Posted: Mon Oct 16, 2006 3:15 pm Post subject:

ive been using it for a good few months and its one of the best on the market at the moment as an all round application if you on heavy recovery use it as a moving map most hgv places are easy to get to if in a puddle jumper set it as the hgv limited speed 54 mph in the planning preferences
_________________
currently using aponia truck navigation on windows phone. Good bye IOS don't let the door hit you on the way out .

Oh the joys of being a courier.
device Lumia 950 xl

monkeys · Occasional Visitor Joined: Jun 29, 2006 Posts: 23

Ive got a garmin 2720 It only is meant for 12vdc I need to get a voltage dropper to use it in a truck that only has a 24 volt cigarette adapter I found this one http://www.roadking.co.uk/products.asp?recnumber=202 does any one know if this would be ok ?

I was looking for something heavy duty but couldn’t find anything that had the rite connections only this on eBay http://cgi.ebay.co.uk/zetagi-r20amp-24v-to-12v-voltage-dropper-new_W0QQitemZ170069566836QQihZ007QQcategoryZ108854QQrdZ1QQssPageNameZWD1VQQcmdZViewItem

(I suppose I could make connections but didn’t really want to be getting into any thing like that)

I also thought of using an inverter and using the mains power adapter to power it, I found this http://www.tlc-direct.co.uk/Products/TLINV150slash24.html I think the inverter option might offer the most protection but I many be wrong.

Any advice would be most appreciated?

deltabravo61 · Occasional Visitor Joined: Jul 09, 2006 Posts: 3

I use the RoadKing dropper to run a cd player and a Navman iCN 530 together, it works just fine though the fan has become quite noisy since I dropped it out of the truck Embarassed

robertn · Frequent Visitor Joined: Feb 06, 2005 Posts: 564

Sorry oldboy - most power supplies these days are switchers. Linear ones such as you describe just produce too much heat. Take a typical PND - 1-2 amp @5V on a linear supply is 14-9 = 9V drop = 9-18 Watts. Hot enough to burn someone on any heat sink smaller than a small dinner plate.

Most 12V auto power supplys will have enough tolerance to survive 24V, BUT some won't survive the spikes produced when satting etc. You can easily purchase a 24V-5V adapter if needed, as far as the PND/PDA is concerned 5V is 5V. Make sure the current rating is at least as high as the original, and the voltage is the same.

alix776 · Posted: Fri Feb 09, 2007 8:57 am Post subject:

99% of pda/pnd chargers state 12-30v input and will survive starting spikes
_________________
currently using aponia truck navigation on windows phone. Good bye IOS don't let the door hit you on the way out .

Oh the joys of being a courier.
device Lumia 950 xl

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