โMay-27-2010 02:06 AM
โJan-29-2011 05:20 PM
โJan-28-2011 02:29 PM
โJan-11-2011 07:58 AM
jdiffend wrote:professor95 wrote:curt12914 wrote:
Professor, Have you tried the 2000 watt Honda and Yamaha generators? How do their inverters compare for output?
Bottom line - all of the 2,000 advertised watt inverters (Honda, Kipor, Yamaha and Champion) reliably operated up to 1,500 watts of continuous load. NONE were capable of operating at a continuous load of 2,000 watts.
The Honda and Kipor provided more surge current. The Yamaha and CPE would NOT start a 6,000 BTU window air conditioner used as a test device. The Honda and Kipor would start the device. The Yamaha and CPE would NOT start a 12 amp circular saw. The Kipor and Honda would.
The Honda and Kipor are 100cc engines. The Champion and Yamaha have 80cc engines.
This is in no way a statement that implies the Champion and Yamaha are inferior to the Kipor and Honda. But, if your needs are for higher surge or starting currents, the larger displacement engine models do appear to have an advantage.
Have you tried a Generac iX 2000?
It has a 127cc engine.
BTW, from the Generac manual:NOTE:
Power output and runtime are influenced by many factors, some of which are fuel quality, ambient temperature and engine condition. Output decreases approximately 3.5% for each 1,000 feet above sea level and 1% for every 10 degrees above 60 degrees F
So if you know what the temp and altitude was for your tests you could probably estimate sea level output.
โJan-11-2011 04:56 AM
johnjces wrote:
Initial and Real World Review of Two (2) CPE 73531i gensets and 73500i parallel kit.
MODS. Please feel free to move this to a different or separate thread.
I am new to this forum, but have been a pretty avid RVer since our first travel trailer back in 1993. Currently I own a 2011 Skyline Aljo 2640B with a 15K BTU AC, (not the standard 13.5). I live at 6500 feet in elevation and thought I would write up a quick review of my purchase of two (2) CPE 2000 watt inverter generators today. Since we want to do more dry "camping" at the lower elevation AZ lakes, I needed a light weight generator that in my mid 50's and later life, I can fairly easily lug around. Anyway... This forum helped me to decide as well as other research on the Champion products. I am not affiliated with CPE in anyway and am a retired COP, not that it matters, but my initial review and impressions are most favorable.
I have been penny wise and pound foolish too many times in my life and more often than not I get what I paid for. So I lamented over a couple of Honda EU2000i gensets and having a neighbor with one, have some hands-on with the Honda inverter generator. I initially tried out one Honeywell 2000i but it was hard to start, noisy, heavy at almost 65 pounds and no parallel kit. It went back to Costco and so my lamenting over spending a couple of grand for a pair of Honda's continued.
I then stumbled upon some info on the CPE product. Looked at a couple of youtube videos and read all I could for this newly released low cost (HALF the cost of a Honda) and finally figured oh... what the heck. I ordered the parallel kit from CPE on Wednesday after finding out where in AZ I could get my hands on a couple of these generators. Received the parallel kit yesterday (Friday) and today, (Saturday) headed to Sam's Club in Flagstaff, AZ and picked up two of them and brought them home after ensuring I could bring them back if they didn't work out for me.
After adding the requisite oil and fuel, the first one started after two pulls and the second started on the first pull. Go figure! A far cry from the Honeywell unit I returned earlier in the week!
I have a Kill A Watt which on house AC shows a value of 121 - 122 volts (other meters I own show 119-120 volts), and 59.9 Hz. Each generator, after warming up a bit in either Econ mode on or off, showed 122 VAC and 59.9 Hz. I then Plugged in a resistive load of 1850 watts (a high power hair dryer)in one and then the other. VAC dipped a bit but recovered well on each. Time for the real check... my AC unit and Microwave!
Paralleled the two with the proper kit, (by the way, AC in parallel just as a Honda and the signal cable is a cross over four pin cable, pin 1 to 3 and pin 2 to 4, clockwise from the tab at 12 o'clock. By the way, ergonomics of these untis is really very nice! They stack on top of each other and the parallel kit nestles between them. They are as easy to lug around as a Honda... but again.. HALF the price!
Started them up, one pull each, turned Econ mode off and checked out the microwave. Perfect. Then the 15K BTU AC. The gensets lugged but the AC came right on! I am in business. With the AC on I tried the Microwave. Voltage dropped to about 95 volts and came back to 105 but I did get hot water in a cup inside the microwave and the AC was still cooling away. Didn't notice any slowing of the AC fans, but the microwave sure was affected by the change in voltage.
With the AC running, I turned both units Econ mode to ON and the generators slowed a bit and of course quieter. Cycling of the AC compressor REALLY lugs the gensets engines, and the "AC Present" LEDs (lights) start blinking and no AC was present but the engines didn't die. I figured they would but that didn't happen, but no voltage. A restart fixes this. So... keep Econ mode off with an Air Conditioner running.
I let them run about an hour with AC cooling the trailer and saw voltage with just the AC and 12 volt trailer converter running as 122 volts and again rock solid at 59.9 Hz.
In parallel mode I found them very quiet even under a pretty full load. Inside the trailer, the air conditioner is louder than the generators and I had both stacked right by the trailer door.
So... being light weight, a bit over 50 lbs with a full gallon of gasoline, quiet, from my non scientific listening tests with the Honda, the CPE's are about at the same noise level one on one with the Honda. Half the price and now, only time will tell If these are solid little gensets.
Maybe, just maybe, I got more than my money's worth.
John J
โJan-11-2011 04:54 AM
curt12914 wrote:tvman44 wrote:
Professor95, did you ever measure the noise of just one of the CPE inverters out in the open under full load? Just curious what the noise level is. Also when you run 2 at the same time how much increase in noise is there? I am inclined to think 3 db additional but cannot find any info on that?
I'm sure you are aware that this debate (single generator verses twins) has been argued many times on the Honda threads.
Since a db meter actually measures pressure, the readings from twins is always louder than a single, but if you have ever been around them, the noise difference is virtually imperceptible to the average person. With the Honda's infinite rpm range, it's possible twins are even quieter on a moderate load, since the rpm's of both generators is substantially less than it would be with a single generator.
If the CPE inverter generator has varying rpm levels (like the Honda and unlike the Kipor), it should give similar noise results with twins.
โJan-11-2011 04:50 AM
โJan-11-2011 04:50 AM
โJan-10-2011 03:26 PM
โJan-10-2011 03:21 PM
curt12914 wrote:
If the CPE inverter generator has varying rpm levels (like the Honda and unlike the Kipor), it should give similar noise results with twins.
โJan-10-2011 02:44 PM
tvman44 wrote:
Professor95, did you ever measure the noise of just one of the CPE inverters out in the open under full load? Just curious what the noise level is. Also when you run 2 at the same time how much increase in noise is there? I am inclined to think 3 db additional but cannot find any info on that?
โJan-10-2011 01:55 PM
tvman44 wrote:
Professor95, did you ever measure the noise of just one of the CPE inverters out in the open under full load? Just curious what the noise level is. Also when you run 2 at the same time how much increase in noise is there? I am inclined to think 3 db additional but cannot find any info on that?
โJan-10-2011 10:04 AM
โJan-10-2011 09:26 AM
โJan-10-2011 08:15 AM
โJan-10-2011 07:13 AM