19V from 12V for my laptop?

[acropolis22]

How can I do this? I've read loads of related threads, but can't find an obvious answer/product. I can't be the only one that needs this?

I just want to be able to use my laptop off the 12V system when there is no EHU. The 230V PSU says it needs 19V.

 

[cmcardle75]

How can I do this? I've read loads of related threads, but can't find an obvious answer/product. I can't be the only one that needs this?

I just want to be able to use my laptop off the 12V system when there is no EHU. The 230V PSU says it needs 19V.

No problem at all. Loads of adapters for this. Watch out for Dells, though. Their chargers have chips in to force you to buy their overpriced versions and I'm not even sure they do a car version. If you plug in a non-chipped PSU, they drop to 10% CPU max usage and turn off the battery charger, all for your convenience, apparently. Not so they can restrict trade.

I've got a couple of the following one and they seem to work fine. You'll need to check the required wattage.

Amazon product ASIN B08HGLJXW2

 

[gus-lopez]

On Amazon you can purchase a universal adaptor that allows you to adjust the voltage.

like thesehttps://www.amazon.co.uk/s?k=univer...821140&tag=googhydr-21&ref=pd_sl_5gkguv6ne4_e

 

[chaser]

DC To DC 12V to 19V Step-UP Converter Power Supply Converter Voltage Booster 5A | eBay

Find many great new & used options and get the best deals for DC To DC 12V to 19V Step-UP Converter Power Supply Converter Voltage Booster 5A at the best online prices at eBay! Free delivery for many products.

www.ebay.co.uk

 

[acropolis22]

Thanks guys. I was coming up with weird stuff that required cutting off cables and whatever. Now you've got me in the right ball park, I just have to make sure the connector fits my Asus. Shouldn't be difficult.

Thanks again.

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[Guigsy]

The cheaper and slightly less efficient method is to just use a low power 230v invertor that plugs into a 12v socket. The switch mode power supply on your laptop will cope with just about anything, so it doesn't need a fancy sinewave invertor, a 200w one will do. You'll lose a few watts to the inefficiency of going to AC and back to DC again, but it's not the end of the world.

 

[cmcardle75]

Thanks guys. I was coming up with weird stuff that required cutting off cables and whatever. Now you've got me in the right ball park, I just have to make sure the connector fits my Asus. Shouldn't be difficult.

Thanks again.

When I had an Asus it had either a 2.1/5.5 or 2.5/5.5 (can't remember wich), which are the most common types and would be included in any universal adapter. However, some might have one of those weird rectangular plugs which look a bit like USB-C at a glance, but aren't.

 

[TinaLes]

No problem at all. Loads of adapters for this. Watch out for Dells, though. Their chargers have chips in to force you to buy their overpriced versions and I'm not even sure they do a car version. If you plug in a non-chipped PSU, they drop to 10% CPU max usage and turn off the battery charger, all for your convenience, apparently. Not so they can restrict trade.

I've got a couple of the following one and they seem to work fine. You'll need to check the required wattage.

Amazon product ASIN B08HGLJXW2

Hi I agree about Dell Laptops being fussy about chargers, that why I was reluctant to buy anything other than a Dell specific one, as you say at a much higher cost.
Are you using the chargers that you have highlighted on a Dell modern I7 type laptop?, thanks for any feedback you can give me.
I did ask the seller on E Bay/Amazon of a similar one to your posting whether it would work on a Dell I7 3500 series laptop, their response was Yes, but I somehow doubted that would be the case.
Thanks again.
LES

 

[cmcardle75]

Hi I agree about Dell Laptops being fussy about chargers, that why I was reluctant to buy anything other than a Dell specific one, as you say at a much higher cost.
Are you using the chargers that you have highlighted on a Dell modern I7 type laptop?, thanks for any feedback you can give me.
I did ask the seller on E Bay/Amazon of a similar one to your posting whether it would work on a Dell I7 3500 series laptop, their response was Yes, but I somehow doubted that would be the case.
Thanks again.
LES

No, I use those cheap chargers for Lenovos and Acers. I do have a modern Dell laptop (Precision 5540) for work. I've not tried a non-Dell charger on it. This laptop does work properly off a previous generation Dell charger with a tip adapter. The previous generation charger would have had a chip in it, though.

Personally, I wouldn't spend my own money on a Dell unless they removed the chips, or run off USB-C, so you aren't beholden to them for accessories.

 

[GJH]

I just have to make sure the connector fits my Asus. Shouldn't be difficult.

Make sure you specify that the universal adapter must have a tip equivalent to the one on your mains charger (seller should be able to tell from the mains charger model number).
I bought an Asus EEE laptop a few years ago and had to buy a specific Asus E40W-01 car charger.
Later I bought a Vivobook after being told by Asus that it was compatible with the E40W-01 car charger. It turned out not to be and Asus didn't want to know about giving me any help.
Luckily I found a tip for a universal which would fit but not all universals have them.

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[Pugsy]

Thanks guys. I was coming up with weird stuff that required cutting off cables and whatever. Now you've got me in the right ball park, I just have to make sure the connector fits my Asus. Shouldn't be difficult.

Thanks again.

Hi, got my Asus adaptor from.

The Web's Largest Supplier Of Laptop Power Adapters & Laptop Chargers | Power4Laptops

The Web's Largest Supplier Of Laptop Power Adapters & Laptop Chargers. Over 200,000 models in stock.

www.power4laptops.co.uk

I had to call as my asus laptop did not come up in the dropdown bar.
Cheers Cris.

 

[Tombola]

I struggled with my ASUS tried at least 40 adtaper plugs, and am still just using inverter.

20v though

DC to DC converter for laptop

Please could someone recommend a specific DC to DC converter with which to run my HP laptop from a 12 volt socket rather than via an inverter? I'm interested in quality and reliability rather than price. I found the following somewhere and thought it worth passing on. The circumstances...

www.motorhomefun.co.uk

 

[eurajohn]

Personally, I wouldn't spend my own money on a Dell unless they removed the chips, or run off USB-C, so you aren't beholden to them for accessories.

I've got a Dell XPS 13 9370, which has USB C port to charge, I've now been through a few 12 volt chargers that claimed to be OK to charge it. However not the case, luckily all bought via Amazon so effectively at no cost to me. One of the sellers actually replied to me to apologise (they had previously replied to my specific question as to whether it would work or not) and explained it was to do with the protocol that Dell build into their system.
I have just had a recommendation from someone to one that does actually work Link, not bought it yet but intend to

 

[peterc10]

I have always bought an adaptor specifically for my laptop. I went on Amazon and searched with the model name (or number) of my laptop and "12v". Last two were HPs and the one I have now is from Microsoft.

 

[cmcardle75]

I've got a Dell XPS 13 9370, which has USB C port to charge, I've now been through a few 12 volt chargers that claimed to be OK to charge it. However not the case, luckily all bought via Amazon so effectively at no cost to me. One of the sellers actually replied to me to apologise (they had previously replied to my specific question as to whether it would work or not) and explained it was to do with the protocol that Dell build into their system.
I have just had a recommendation from someone to one that does actually work Link, not bought it yet but intend to

What, so even using USB PD, they've somehow knobbled it to only use their overpriced chargers? Can they claim PD compatibility if they've effectively subverted it into their own private protocol?

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[Guigsy]

I've got a Dell XPS 13 9370, which has USB C port to charge, I've now been through a few 12 volt chargers that claimed to be OK to charge it. However not the case, luckily all bought via Amazon so effectively at no cost to me. One of the sellers actually replied to me to apologise (they had previously replied to my specific question as to whether it would work or not) and explained it was to do with the protocol that Dell build into their system.
I have just had a recommendation from someone to one that does actually work Link, not bought it yet but intend to

I think USB C PD has several optional features. To increase the power flow, the device can request that the charger increases the voltage beyond the old USB standard of 5v. The PD standard can go up in several steps as high as 20v. But not every charger will support it. The cheaper ones might max out at the 9v level as they don't have the DC-DC invertor to take the 12v input up to the next step, which is 15v.

The laptop should still work at lower delivery levels, but it won't charge as fast (or may discharge faster than it's charging!). So it's not necessarily Dell's fault.

 

[GJH]

I struggled with my ASUS tried at least 40 adtaper plugs, and am still just using inverter.

20v though

DC to DC converter for laptop

Please could someone recommend a specific DC to DC converter with which to run my HP laptop from a 12 volt socket rather than via an inverter? I'm interested in quality and reliability rather than price. I found the following somewhere and thought it worth passing on. The circumstances...

www.motorhomefun.co.uk

Will it charge from a USB C port?
I bought an Anker Power Bank, PowerCore+ 26800 PD 45W with 60W PD Charger for my HP laptop which requires 19.5v. They do a more powerful PowerCore III Elite 19200 60W Portable Charger with 65W PD Charger which might have enough oomph for your Asus.

​

 

[TinaLes]

Interestingly I just noticed the 12 volt car chargers listed for my Dell I7 7500 series lap top are out of stock on Amazon at present.
I did however find this supplier in The Uk which seems reputable, so might give them a punt, price is about average also.
LES
<Broken link removed>

 

[Tombola]

Will it charge from a USB C port?
I bought an Anker Power Bank, PowerCore+ 26800 PD 45W with 60W PD Charger for my HP laptop which requires 19.5v. They do a more powerful PowerCore III Elite 19200 60W Portable Charger with 65W PD Charger which might have enough oomph for your Asus.

​

good point, never tried, thanks

 

[BigDean]

I bought this one as my Dell XPS 13 is pre USB-C and it works great. Also powers just about anything else I have thrown at it including my Samsung 19” tablet we use as a TV.

Outtag Mini Car Charger 100W Universal Laptop Power Supply 15V 16V 18.5V 19V 19.5V 20V DC Adapter 5V USB Detachable Cord for HP Dell Toshiba IBM Lenovo Acer Asus Compaq Samsung Sony Notebooks https://www.amazon.co.uk/dp/B071SDW4QG/ref=cm_sw_r_cp_api_glt_fabc_KZ2E0CPQGGJTQH7QQGZX?_encoding=UTF8&psc=1

The missus has a newer XPS13 with USB-C and haven’t had any trouble with one of these:

LinkOn 63W Car Charger With 45W USB-C PD3.0 PPS and 18W USB-A QC3.0 Compatible with MacBook Pro Chromebook iPhone Xs/Max/XR/X/8 iPad Pro/Air 2/Mini, Samsung Galaxy S9/S10/S20 Pixel Nexus Huawei https://www.amazon.co.uk/dp/B077ZRBPNB/ref=cm_sw_r_cp_api_glt_fabc_Q1WQDN7VYCZHZHM7JXT6?_encoding=UTF8&psc=1

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[gus-lopez]

I just have to make sure the connector fits my Asus.

I have an asus. I bought the universal charger Jaws showed a link for which is adjustable & with multi ends one of which fitted. Works a treat .wife has now bought one for her notebook & lap top

 

[PDrill]

If you have a powerfull laptop you need take a look at the power rating of those universal 12v chargers. I think my current laptop has a mains charger up to 135 watts but the universal chargers seem to be no more than 90 watts. My current 12v charger is one of those more expensive ones and it seems to be quite okay with my laptop eventhough the charger is only 90 watts. The charger draws about 8 amperes (=slightly over the rated 90w) so the charger is doing all it can with no problems, not sure how the cheaper ones would do if the laptop is asking for much more than the rated power of the charger.

 

[Off da Grid]

All the power blocks do is charge the battery a lower powered one will just charge it slower.
If your laptop will allow remove the battery and it should be fine.
Just remover if you loose power it will switch off and not save your work.