Hi Reuben, well wear with the range extender. People should be aware that these cheap generators come with a "running in" oil, intentionally low lubricity to allow the piston rings to wear a little and seal better. If you don't put a good oil in after 20 running hours then they wear out very quickly. You could get years out of it. Please ignore me if it's a 2-stroke.
Isn't it a neat idea, though. Looks like a brushless motor and a wind turbine charge controller coupled to an engine. Anybody with access to a lathe and mill could do it, maybe using high end components where affluence allows.
Regards Anthony
Carsten,I purchased my range extender from Tom's Machinery: https://www.aliexpress.com/item/4000220765557.html?spm=a2g0o.productlist.0.0.149c1756vkAIlK&algo_pvid=6b4343d8-1544-4103-b5bf-f86fee9de4e3&algo_expid=6b4343d8-1544-4103-b5bf-f86fee9de4e3-10&btsid=0bb0623c16196385185381661e3b60&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_I purchased the 6kW/48Vdc unit - I should have bought the 4kW one since these are amp limited - at 48v I'd get the same amps from a 4kW unit as the 6kW and it comes in a neater package with the controller and rectifier built into the casing. I did get a remote gas tank rather than integral. Response from vendor was as good as could be expected. They immediately replaced several items damaged in shipping. And eventually the controller which mal-functioned.Right now the throttle is not automatic - I just set it on high. I have yet to run it for an extended period of time. I don't use the automatic on/off features.It's installed in a FRP box with the exhaust ported outside along with an exhaust blower that changes the air every couple of minutes. I just bought a temp gauge to see what the ambient temperature is.Any other questions?ReubenOn Apr 27, 2021, at 11:09 AM, Carsten via groups.io <Carstensemail=yahoo.com@groups.io> wrote:Hi, ReubenCould you please tell me more of your experiments with the CN gen in point 3. please ?I have a link, and it makes me just more confused than enlightened... I even had a few laughs when reading it :-)My guess - not certified in ANY heavy regulated country.Looking forward to hear from you,CarstenOn Tuesday, 27 April 2021, 20:40:09 GMT+8, Reuben Trane via groups.io <rjtrane=me.com@groups.io> wrote:Great project and presentation. I have a 48v system on my solar powered 12m cat "Sunshine" that has been off the grid over 5 years. Here's my thoughts:1. I feel you'd be better off building your LFP pack using prismatic cells from Winston, CALB or Sinopoly. Use cells of the AH size you want to minimize connections - 16 cells total. If you're set on "drop-in" LFP batteries, I'd consider Victron (they do make them?). Since you're using Victron components, then stick with them for a BMS that can communicate with your inverter/charger and solar controllers.2. If your 12v battery is near the windlass, I'd suggest the DC/DC charger also be located near this battery. You can then run sizable wires to your 12v panel.3. I have been experimenting with a Range Extender (48vdc generator) from AliExpress. It has a small air-cooled gas motor started by the 3-phase AC generator. It has a controller and a bridge rectifier with DC charging output. These range controllers are designed for EVs and output about 4kW/80A for a 48v system.4. Solbian makes the best flex panels using SunPower cells. I have rigid SunPower panels installed in 2008 and still working fine.5. I have considered wind but not added any - small units barely produce much of anything - my research indicates using ones with blade diameters if 6' or more to get anything really useful.Where are you doing this project? I'm in Key Largo, Florida - a perfect spot for a solar boat. Any plans to share?Good going.Reuben Trane
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