Jaycar sell suitable laptop chargers that have variable voltage outputs from 12v inputs.
Printable View
Jaycar sell suitable laptop chargers that have variable voltage outputs from 12v inputs.
I’ve had good runs with these (and their predecessor)
Targus Laptop Car Charger + Phone/Tablet Charge
Very hit and miss I agree. Had a couple of very good 24 to 12 volt converters - big suckers that we pull 50 amps through to drive electric semi trailer legs from the 24 volts on the genset - each motor pulls just shy of 25 amps each when driving the front of the trailer up and they have lived long and happy lives, but their inverters are crap - went through 3 before they gave me my money back - couldn't make one last more than a week and was only drawing 1/4 or its rated continous load.
I have a couple of these that I don't know what to do with. I'd use one for my HP laptop but they are a bit bulky.
Hewlett Packard 5063-0408
ROVER ROAD TEST P/S
9-25VDC in
18v 3A out
List price 1100 Euro! [biggrin]
I got myself a dedicated car charger for my Windows Tablet(19v 3.5a) from a mob called Broadway Computers(shop based in Melb) .. they have an Ebay store(I think! .. they did when I found them).
Got a few laptop parts from them over the years, never had any issue with their products.
Mine still works strongly, even tho I haven't used the tablet for a good year or more now. Tablets battery died a few years back, and relies on charger to actually operate(battery not worth the $s). So the tablet is always on the charger.
I just got one that had the output specs for what I needed, hacked the bud of the end, fitted one from the multitude of multi fit ends I have lying about, looks hacked, but works.
Cost me about $20 a few years back(~2010) .. maybe a bit more now .. dunno, never needed to get another again.
I know the OP does not want to use an inverter BUT [smilebigeye]
When I upgraded my lap top a few years back my old 12v lap top charger was not able to provide the required watts so I went looking for a new one - approximate cost was about $100.
Ended up buying a 300w/600w Pure Sine Wave inverter off ebay for $60 - saved $40 straight away - can plug into the cigar socket, charged perfectly but it is the flexibility that I found great. Small enough to carry around, charges all my other appliances that the dedicated laptop charger cannot, and when the power is out at home I can still use my laptop and watch TV at the same time.
The little inverter has been 100% reliable.
Have a rethink about a small inverter.
Garry
BTW my inverter is a 150/300watt PURE SINE WAVE.
I reckon that is safer than modified for that function.
You can also use it to run a vacuum packing machine and a few other uses.
Regard sPhilip A