Inverter needed or any alternative?

[Ju.Ca]

I want to use my home 4G router in the camper van. It is 240v and 24watts rated. My calculation is that it’s just 0.1amp if that’s correct. We have an Avtext TV that’s runs on the 12v system & so apart from some small led lights will not use anything else when using router to watch TV. If on electrical hookup we won’t have this as a problem but will without. I see there are very simple low cost inverters but am aware the need to be careful using an inverter & the need to take account of the total power being taken from the system and read the is to double the wattage of all power useage when choosing the power of an inverter. Hence the description above of what total power we would be using through the inverter if just watching TV. Wonder if anyone able to give advice. Thanks

 

[autorouter]

The product linked on Amazon would be perfect for what I need, except that I need 19V output for my laptop, and it needs 2.37A. Is there something else that would do that does anyone know?

19V 2.37A is 45W, so this one should be fine. I use one of these. There's a good choice of power plugs included.

Outtag 65W Universal Car Charger 18V 18.5V 19V 19.5V 20V Replacement Power... | eBay

Adequate DC Connectors are compatible with most notebooks.

www.ebay.co.uk

Actually, I use three of them. we have a laptop each, and the TV (an LG from Argos) takes 19V, and the Sony plug seems to fit OK

 

[Harvard]

We use this mobile Router, USB powered. I normally use the shown power bank to supply both it and a camera for keeping an eye on the Dogs when we’re away from the Motorhome,
Tennis ball shown for size purposes!

 

[Harvard]

Don’t know what happened to the picture, try again.

 

[TheBig1]

I have found the Huawei home router, usually a B535 is very voltage sensitive. So with my install I fitted a tiny buck/boost converter that I set to exactly 12v. This plugs into a 12v socket and it works without fault. With the parts bought from ebay, about £8

Our laptops each have a car charger which takes in 11 - 15v and outputs a steady 19v set by a switch on the adaptor. Cost under £20 each

The wall mount for the router was 3d printed by PaulandChrissy

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[Ian Bosman]

To sum up this conversation of advice. Your router needs 12volt DC to run it so an inverter is NOT required but a stabilised 12 volt supply is required as advised by Autorouter #25 above. The symbol on the router with the solid line over the dashed line is to show it is DC whereas if it were a wavy line that would be AC. So get a DC stabiliser for nominal 12volt input (it may show as 12volts to 15 volts DC input) with 12 volts DC stabilised output. The important thing is not to have a 12 to 15volt AC input device as it will not work!

 

[jp11]

To sum up this conversation of advice. Your router needs 12volt DC to run it so an inverter is NOT required but a stabilised 12 volt supply is required as advised by Autorouter #25 above. The symbol on the router with the solid line over the dashed line is to show it is DC whereas if it were a wavy line that would be AC. So get a DC stabiliser for nominal 12volt input (it may show as 12volts to 15 volts DC input) with 12 volts DC stabilised output. The important thing is not to have a 12 to 15volt AC input device as it will not work!

I'd tend to agree with that, and what DBK said.
I do think that Chaser oversimplified the function of an inverter in saying "All you will do with an inverter is transform 12 volt to 230". There's the small issue of changing from DC to AC!

 

[marjohn]

The reason no-one is advising using an inverter is that a large inverter has a constant background drain, that will be a sizeable fraction of your 24 watt power requirement. It'll probably use nearly 40 watts to power the router. It's surprising how a constant 24-hour drain can flatten a leisure battery.

If you end up using an inverter, best to get a small 150 watt or even 100 watt, just for the router, and make sure it's a Pure Sine Wave type, not Modified or Quasi sine wave. With a small inverter the drain will probably be OK. But I'd prefer to run from a 12V stabiliser if you can find the right one.

I charge my Wi fi system up all night and use the dongle any time