Off-grid recharging power for Dell Inspiron laptop?

Hi, I have a newer Dell Inspiron laptop.....I like to go off-road for 2-3 days at a time, and I need my laptop to use during that time (I'm a writer.) You can't switch out batteries on it....so I'm wondering the best option for recharging it a few times. I can always charge it off the car battery w/my ac/dc converter, but I hesitate to run the car at idle for 1-2 hours. What's the best option? I'm assuming it will be a powerful portable charger?

 

I have an earlier version of this (mine is 71486 and this is 71686)
https://www.acehardware.com/departm...er-cables/automotive-battery-chargers/8292831

I use it with an inverter similar to this

I plug the inverter into the port on the stand alone battery and plug devices into the inverter.

The battery says " 750 peak ampere and produces 21 hours of 12 volt DC power".

My model says up to 20 hours then mentions 15 watt DVD player up to 9.6 hours. My charger says 40Watts so the battery would power it for 3+ hours.

 

Thanks for these responses.....I don't want a big generator........a small one maybe. This link leads to a battery starter. I already have one. I wouldn't use it to charge the laptop, as I leave it for emergencies. If I left the car lights on or something way in the back country, I need it fresh.

 

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I like the Aivant model at $200....it has two ac ports. Do you know how many full charges of my laptop I can count on?

 

I don't know that I would use a LED acid battery for this purpose. I'm more inclined to get something like one of those higher-powered Anker-style Chargers. Similar to the ones I use to charge my phone, but more powerful.

 

How about using a lower power device for writing like a phone or tablet with a Bluetooth keyboard?

Or go old-school and get a Moleskin notebook and nice pen. More energy to focus on the creative process.

 

I looked at some of those and they cost $200 and I'm not sure how long (in terms of hours) they'd work to charge a laptop.
https://www.pcmag.com/review/359114/mophie-powerstation-ac
https://www.techradar.com/news/top-8-best-portable-laptop-battery-chargers-and-power-banks-in-2017
though the link says 2017, the article is dated August of 2018 so I assume the products are current this year.

Yes, as AmyToo mentioned above, take a device that uses less power or write on paper and scan it in when you get home.

 

Writing on paper is a miserable experience for me, not an option. And it's not practical either, a lot of my work is editing and the like. I could use portable keyboard on my iPad, it's true, that would give me another 2 or 3 hours. On the phone might work. I've thought about that.

 

Thanks for this....sorry, didn't see it when you posted it. I have determined that's not enough for my needs.....I'm talking about being off-road for 3-5 days. I need to power the laptop 3+ times....I found the River portable power unit (~$500-600) which will give 6 hours of laptop charging (and 80+ hours for the phone, GoPro, et al!) so that would be a better solution....and, it can be a great backup in the house during storms, etc.