When I said hardwire, I didn't mean directly to the battery. Mine are powered through an add-a-fuse on a circuit that is only powered on ignition. Obviously draining 24AH a day will kill your starter battery pretty quick. ;)
If you want to spend the money for a system that will save you 750mA of...
Can you just hardwire the cameras and let the switcher just handle video? I doubt they draw that much power.
I'm working on a similar setup, but I'm using a monitor that has 4 camera split screen. They make them for truckers. They tend to run around $70 on Amazon.
I followed the directions here, and mine didn't need it. I roll it up tight and use 4 small bungee cords to keep it closed. No noticeable wind noise or ballooning problems.
That's amazing! I always assumed that I was just cursed to not be able to use my CPAP while backpacking. How do you like it? 28 hours on a charge (according to my 10cmh2o setting) would last me for most short excursions.
I built my battery system to support my CPAP while camping (Resmed 10 Autoset). I use the Humidifier; dwh's numbers look about spot on from what I've seen. You should be able to find a direct 12V power brick for your CPAP to eliminate the inverter (and make it more efficient). I camp with a...
Exactly. I've run a laptop + two 22" external LCD monitors on full brightness while running a GPU & CPU intensive program on my laptop and only hit 90 - and that was going through an inverter. His DC to DC converter should be much more efficient.
True, but based on the estimates we've been giving, people are assuming that it is going to be doing a 5.6A constant draw for 8 hours. That power adapter is probably designed to provide enough power to charge the laptop battery from dead while the laptop is maxing out the CPU/GPU/Display...
Why not test it to see what kind of power draw it actually has? They may have significantly overbuilt their power adapter. I use one of these in my system to measure power usage: https://www.amazon.com/gp/product/B017BDQHE6/ref=oh_aui_search_detailpage?ie=UTF8&psc=1