Inverter with no fan? May 13, 2020, 01:48:14 am Hi Folks,I've been using an inexpensive 300 watt inverter to power little appliances like a coffee grinder, mixer etc. Works great. It has a little fan to keep it cool. Doesn't matter what's connected or not, that little fan is full on and is actually pretty loud. Not a big deal for the typical short use when running a mixer. However, I might be using it for other applications for longer times and I can see that fan get a little annoying for longer duration run times.Do all little inverters have cooling fans? Any that have a thermally adjusted speed adjust for quieter operation?Thanks much.Steve
Re: Inverter with no fan? Reply #1 – May 13, 2020, 03:49:33 am Quote from: 73gitane - May 13, 2020, 01:48:14 amI've been using an inexpensive 300 watt inverter to power little appliances like a coffee grinder, mixer etc. Do all little inverters have cooling fans? Any that have a thermally adjusted speed adjust for quieter operation?Every model of inverter has its own specifications. Our ten-year-old 400-watt inverter's fan only turns on when under a decent load and then intermittantly. When looking for quieter inveter, read the manufacturer's specifications online and look for a thermally activated cooling fan.Larry
Re: Inverter with no fan? Reply #2 – May 13, 2020, 08:04:36 am SureSine - Morningstar CorporationNo fan. Rich‘03 MB in NC
Re: Inverter with no fan? Reply #3 – May 13, 2020, 09:57:28 am That model would be the Rolls Royce of 300W inverters! But besides being rather expensive, it has massive heat-sinking, which makes it large and heavy - thus no need for a fan. You won't go wrong with it though...Steve
Re: Inverter with no fan? Reply #4 – May 13, 2020, 10:27:35 am Quote from: Steve - May 13, 2020, 09:57:28 amThat model would be the Rolls Royce of 300W inverters! But besides being rather expensive, it has massive heat-sinking, which makes it large and heavy - thus no need for a fan. You won't go wrong with it though...SteveI didn't know what "heat-sinking" was: A heat sink (also commonly spelled heatsink) is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device to a fluid medium, often air or a liquid coolant, where it is dissipated away from the device, thereby allowing regulation of the device's temperature at optimal levels.Chris
Re: Inverter with no fan? Reply #5 – May 13, 2020, 12:39:15 pm Here is a 400-watt inverter with a thermally controlled cooling fan, for about $50.Go Power GP-400HD, 400 Watt Modified Sine Wave Inverter 12VSpecificationshttps://www.invertersupply.com/media/data/SPEC_GP-225-400-800-1000-HD.pdfIt's a modifed sine wave inverter that will work with 95% of most needs. Best to hardwire with 10-gauge wire, with an inline fuse.A few devices require a pure sine wave output, then the $300 Morningsar inverter is needed.Nothing we own or use in the LD requires pure sine wave, so our cheapie inverter is more than adequate. You will find this true with most devices.Larry
Re: Inverter with no fan? Reply #6 – May 13, 2020, 06:38:58 pm Buy once, cry once. Quality will be remembered long after the price is forgotten...I installed a SureSine 300 after going through a few smaller inverters that plugged into the 12V lighter outlets. I heard lots of reports of cheaper models breaking after few years. If I was going to go through the work of hardwiring it to the battery, I only wanted to do it once. That was 8 or so years ago, and I did it mostly to run electronics including computers. In the years since, everything I use now has a straight 12v charging option. My only regret is wiring the outlet to sense demand before turning on instead of putting in a switch (both are options on the inverter). Some modern devices call for so little current initially that the inverter doesn't 'wake up' until I plug in something more substantial to get it started. Rich'03 MB in NC
Re: Inverter with no fan? Reply #7 – May 13, 2020, 09:18:23 pm May I suggest ......Amazon.com : Jackery Portable Power Station Explorer 240, 240Wh Backup...Before anybody tars and feathers me let me point out some upsides....... 1. Pure AC sine wave - this one at 200 watts2. 240 watts hours with use to 80% discharge.3. Can be use both inside AND outside the RV4. price competitive with full sine wave inverters.glen As an Amazon Associate Lazy Daze Owners' Group earns from qualifying purchases.
Re: Inverter with no fan? Reply #8 – May 13, 2020, 09:50:03 pm I'm no expert but regarding inverters, I went through several and was never thrilled with any of them, especially when they made noise! Besides they finally started making even more noise or just died. I boondock for months using only solar power and prefer an inverter that's not installed and is easy to replace. These particular ones might be hard to find, but don't give up, there really are silent inverters out there.I took a chance on the MobileSpec 300W which used to be sold at Love's Truck Stops, and couldn't be more thrilled! It is completely silent and I leave it plugged in all the time, since the USB ports work whether it's turned on or not, so I can keep all my electrical stuff charged - laptops, tablet, speakers, mp3 player, etc. When it gets turned on, it also powers my big screen television and dvd player perfectly even while other things might still be charging. I've used it for over six years now and it still performs perfectly, although I do have a spare that is still unopened. Here's an old link from Amazon, no longer available there --Amazon.com: Mobile Spec MS300W 300W Power Inverter: AutomotiveI also have a small Go Power! 175-watt inverter from Amazon that is also silent. It stays in the overhead above my work station, for 110 power. I leave my laptop plugged in and turn it on whenever I'm working, often for many hours at a time. Go Power! 175-watt inverter, still available --Amazon.com: Go Power! GP-175 175-Watt Modified Sine Wave Inverter: AutomotiveFor high wattage appliances like my blender or food processor, I use a different one that does make noise. Who cares when you're using a blender? (an old Power Drive 150W strip recommended long ago by John and Linda Leach)Good luck, Kristin 1 Likes As an Amazon Associate Lazy Daze Owners' Group earns from qualifying purchases.
Re: Inverter with no fan? Reply #9 – May 13, 2020, 10:30:45 pm Jackery - Goal Zero - and the new kid in town, EcoFlow Delta - and othersMy personal knowledge about all of this is zip, so I am providing the URL for a video that I have seen that I found interesting on the subject. Below that is an article of interest about the EcoFlow Delta.For further information, Google up Will Prowse and whatever power item you might be thinking of to see if he has tested it already. His style is pretty rapid fire, but fairly easy to comprehend. How DOES he keep that all in his head?Be prepared to travel down rabbit hole after rabbit hole once you start down this path. I can't tell you how many hours I have spent watching videos and doing web research in an effort to figure out how to run my husband's CPAP machine efficiently with a stand-alone unit for power. Virtual hugs, Judie <-- Sierra Vista, Arizona Adventures of Dorrie Anne | Photographing the West Today: Fun with Egg Wash *********************************https://www.youtube.com/watch?v=afk4VV_-2ZQ&feature=em-uploademailKickstarter darling EcoFlow Delta battery generator is not what it seems –...
Re: Inverter with no fan? Reply #10 – May 13, 2020, 11:11:46 pm Thanks all for the great information and links!Go Power looks to be a well regarded brand. I can see it being a nice step up from the old Radio Shack branded one I use now and the price is oh so good. Sure Sine - As a bit of a hardware geek I can really appreciate what it has to offer. I respect any equipment that uses a toroid transformer. It also helps explain why this this thing weighs in at a hefty 10 pounds. I'll really need to evaluate what my electrical needs are to justify the price. A very nice unit.I can see the battery/inverter combos being really convenient for some. Good portability.Safe travels,Steve
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