Permanent wiring to car power for ICN510 - How do I do it

[Steven-f]

I'd like to mount my ICN power lead permanently, rather than use the cuigarette lighter adapter.

Does anyone know what I need to buy in terms of power lead that can be wired straight in to a 12v car supply (I need to buy it rather than make it as otherwise the car would probably end up on fire!)

Any help greatly appreciated.
Thanks
Steve

[jimg]

[Steven-f]

Thanks, but its the converter from 12v to 5v for the ICN510 thats the important bit.

Any ideas?

Thanks
Steve

[jimg]

[DreX]

Alternatively

But A Lighter plug from maplin about £2
Wire it directly into the fuse box
Along with 2 amp fuse

You can then plug the Navman Lead into this socket
and tuck it away somewhere under the dashboard

WARNING if you cut the cigar plug off the navman lead
you will Blow the navman as the Plug reduces the voltage
from 12v to 5v

Alternatively Halfords will hard wire the navman
for you All PArts Included for £39.99

[Scruge]

If you have acces to a walmart you can get a 2amp 12vdc to multi-voltage adapter for $15. comes with several tips. you should be able to run it off the 4.5volt setting. The test I preformed on the icn510 revealed the battery was 3.63 to 4.12 nominal. Which means 4.5 would have been plenty to charge and operate. The charger included with the navman produces 5volt +/- 2%. If you're particular like me you can change the value of the voltage resistor in the Walmart unit to produce the exact voltage of the navman charger. (pretty simple process). The trick is finding the tip, none of the Walmart tips were the right size. You can order special sizes or in my case I had a bunch of old cell phones and chargers. The Audiovox cdm9000 had the exact tip I needed. I removed the audiovox tip pig tail and soldiered to the walmart unit. The other advantage to the walmart unit is that its 12v plug is on a 1 meter length of cable making it easy to hardwire into your car. The actual converter is about the size of pack of cigarrettes.

Special notes. While studing the Navman 12v charge I noticed to things about it which were strange. 1) It has a 3rd white wire which runs to the tip and appears to be coupled to the ground wire via a cap. Where it terminates into the charger its labeled as "Sense". I have no idea what it does. However I well say I couldn't find this on the AC charger. So I don't know how important it is.
2) The Navman charger had no functional blocking diode in its input circuit. Which meant your car's electrical system could bleed power from the icn510 battery. I discovered this shortly after I first bought mine and have reported this problem to Navman for which I haven't gotten a response. The Walmart unit doesn't have this problem.
2)

[Scruge]

FYI the tip size I measured was 3.22mm OD x .9mm ID. A 3.5mm OD will not fit and a 1mm ID doesn't make a realiable connection.
This link has a unit that looks like the walmart unit. They also provide support for special tip sizes. Althogh I didn't see it listed. http://www.powerstream.com/Product6.htm

The audiovox chargers should be easy to find and cheap to purchase. I see them on ebay in lots of 5 to 50 being sold for $1 to $2 each. Its an old phone but used in the past by one of the major carriers in the US. So theres a lot of them being dumped.

Oh, the power consumption on the icn510 appears to peak around 900ma. The norm was around 350ma.

[filgreen]

I'm thinking of doing this to tidy up the dash. Does it matter that at times the Navman power adapter is coonected and powered up without the navman unit drawing power. ie the psu might be connected for long periods of tim ewithout a navman connected?

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