Steve_S
Offgrid Cabineer, N.E. Ontario, Canada
Maybe "TWEENS" BUT I doubt it's that simple.
Sunfunkits show their true color
- Thread starter Bud Martin
- Start date
As in NEVER EVER !
I think Andy’s off grid garage YT channel is still promoting SFK.
If anyone knows how to get in touch with Andy they should send Ray’s video to him.
RV10flyer
Solar Wizard
- Joined
- Mar 8, 2021
- Messages
- 1,198
Why would SFK not test the cells themselves with the same tester that most of us have, BEFORE sending them to Ray????? Seems like common sense. I've tested cells from Sanben and Liitokala that were under capacity 5-15aH. Then all from Amy-Luyuan and Hayley-Dongguan Lightning met or exceeded cap. It's not rocket science when you test them all the same exact way. If all of Ray's or my own cell testing from various suppliers showed 275-277aH, then we would be the ones with calibration/testing issues.
houseofancients
Solar Wizard
i did post a comment under that video
Horsefly
Solar Wizard
SFK has posted their own video now. I don't think they mention @RayfromTX but they try and make some bogus claims:
- He claims that the Ah measurements from the EBC-A40L is not accurate because there is some loss in the alligator clips. Wrong. The current is the current. All of the current is going through the entire circuit, even if there is some heat loss in the wire or the clips. There are watts lost because there is a voltage drop, but the current is the current. Basic circuit theory, and he doesn't seem to get that.
- He tries to say that what matters is the Wh, and then he gets to whatever Ah he wants by dividing the Wh by whatever voltage he wants. The reason we measure capacity in Ah is because the voltage changes during the entire discharge. Ah is the only way to get a repeatable comparison between cells. Again, basic.
houseofancients
Solar Wizard
fact..
funny thing is, that tester has been tested quite throughly and found to give the same result as other equipment.
given the remarks i made regarding his other "tests" , assumptions and interactions in the past, this conpany just went complete to the "ignore even if he is last supplier on earth" list
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houseofancients
Solar Wizard
that's another way of putting it ..
Bud Martin
Solar Wizard
- Joined
- Aug 27, 2020
- Messages
- 4,843
Yep! those guys at Sunfunshits do not know how to use test equipment or understand the test topology. The specification of the cell is rated in Ah, the test data provided by EVE also show the Ah test result.
The EBC-A40L measures the Voltage at the battery terminals not at the load so the Watt consumption calculation is not affected by any wire resistance, but if you have Volt meter at the load then the Watt calculation will only show the load power consumption, the power loss in the wires are not factored in.
If you look at the house utility meter, the Voltmeter is measuring the Voltage at the entrance of the house not at the load, so the meter is showing the total power consumption which is the load (the load can also have small wires, I.E. TV power cable) + wiring of the house which only 14 or 12 Awg compared to large wires from the pole to the meter and to the breaker panel.
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Steve_S
Offgrid Cabineer, N.E. Ontario, Canada
To all following this thread,.
Speaking as one of "the Old Timers" who has contributed quite a bit here for everyone's benefit since this forum started.
I watched Andy from the start when he started 'Im sharing this learning experience ' shtick evolve into what it is now. He's a great talker/entertainer but that's the real limit. I and others "who Really know what's what" have replied with corrections,credible verifiable irrefutable FACTS to have it pushed off, ignored etc.
Wisdom is to realize when your faced with a polyester clad used car shlock dealer & RUN.
I CALLED HIM OUT HARD result was threats & repercussions even from here.
I Will Most Likely get smacked for THIS post as well.
Steve
Speaking as one of "the Old Timers" who has contributed quite a bit here for everyone's benefit since this forum started.
I watched Andy from the start when he started 'Im sharing this learning experience ' shtick evolve into what it is now. He's a great talker/entertainer but that's the real limit. I and others "who Really know what's what" have replied with corrections,credible verifiable irrefutable FACTS to have it pushed off, ignored etc.
Wisdom is to realize when your faced with a polyester clad used car shlock dealer & RUN.
I CALLED HIM OUT HARD result was threats & repercussions even from here.
I Will Most Likely get smacked for THIS post as well.
Steve
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I Just Cant Anymore
New Member
- Joined
- Jul 10, 2022
- Messages
- 23
Ive been doing quite a bit with AltE, and they have been great! I would recommend.
Signature... is on the bubble for me. I did order a full pallet of bifacial panels from them as well as some other items, all of which showed up in perfect condition and timely, however the panels were sold as "URE" N-Type 390w, they arrived and are Jollywood P-Type 395w panels.... wasnt happy about that and after several emails back and forth trying to get them to understand they are falsely advertising what they are selling I gave up after their last short/rude reply. Overall, I ended up with very nice panels so thats why Im on the bubble.
Bluedog225
Texas
- Joined
- Nov 18, 2019
- Messages
- 2,893
I’d add Battle Born-Strong buy-but $$$. Customer service was excellent.
Now they posted a new video, now directly regarding Ray
This is just like getting a good series on Netflix...
Basicly: The cells Ray got, are Luyuan cells. Those, according to SFK, which said he checked with Amy, can't fail capacity test, and the testing was wrong. According to SFK, Ray didn't return the cells to verify, they can't verify the results, and because he is affailiated with Docan, the SFK test would fail in all tests for sure.
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Saw a good suggestion in the comments about Ray allowing the cells to be tested at a mutually agreed independent lab, that would surely put the matter to rest?
Bluedog225
Texas
- Joined
- Nov 18, 2019
- Messages
- 2,893
Ha! Long video indeed. Somebody archive this.
They ran a background check.
Makes me want to do business with them…NOT.
And he goes over the police report, again.
I hope I never come across as such a tone deaf tool.
What a hugely misguided video.
We need a hall of shame thread. I was going to name it after Big Battery but now they have competition.
Somebody please get him to join the forum.
They ran a background check.
Makes me want to do business with them…NOT.
And he goes over the police report, again.
I hope I never come across as such a tone deaf tool.
What a hugely misguided video.
We need a hall of shame thread. I was going to name it after Big Battery but now they have competition.
Somebody please get him to join the forum.
Yeah the background check was clearly a knee jerk reaction. Bad move.
Just remember Steve, when i first came to this site you were busy telling everyone that cells in parallel could have different voltages.
We can always learn, the longer you are involved the more you see the same misinformation cycle past again.
New players are easily separated from their cash, loud voices and flashy youtube sites are more convincing than actual chemistry or basic logic.
Quattrohead
Solar Wizard
End of discussion !!!!!
Steve_S
Offgrid Cabineer, N.E. Ontario, Canada
Slight difference... I went forward studied & learned more at a cost of thousands from "my pocket" without any YT subsidies or funds and shared that will all for everyone's benefit. Like all the Chargery testing dev and evolutionary development of the DCC's with fellow enthusiast like Craig (former moderator). That is now also coming back as the new "P & B" SERIES' just coming out.
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