Has anybody here had any experience with a boost converter? Like this:
https://www.ebay.ca/itm/LTC1871-Booster-Step-Up-Module-DC-3-5-35V-Converter-Regulated-Power-Supply-100W/183827654038?hash=item2accfb6596:m:mwb79DNuW4Dtel4iE5DOrVg
We occasionally use a laptop to watch movies when the weather is bad. Not knowing when the weather is bad means always carrying an inverter and the laptop charger in case it is needed. Inverting 12 VDC up to 120VAC and then back down to 19 VDC seems rather inefficient. (about 65% efficiency for my inverter and laptop charger). I ordered up one of these boost converters and it arrived yesterday. If the laptop is charged and connected to wifi watching a youtube, it draws 0.7A at 19V and the Boost converter is drawing 1.2 A at 12V. So 14.4 watts in and 13.3 watts out. That is about 92% efficiency! I won't have wifi or youtube when camping, but that is just how I tested it. I did try a fancy boost converter a few years back but it was a retail unit that plugged into the cigarette lighter and had a nice compact plastic case around the electronics. It overheated and let out the smoke. Has anybody had any long term experience with one of these?