Difference between Opus BT-C3400 & BT-C3100 v2.1?

[chops728]

@gauss163

@HKJ

@gauss163

^ To workaround the URL encoding bug we can use a URL shortener e.g. TinyURL or goo.gl

For example goo.gl/mqNBEn is a working link to the URL you sought to post. I’ve used that method many times to post links to your spacey reviews and it seems to have worked well (never saw any complaints).

Then you could just as easily use html code, it will also work.

My experience is that many readers are not familiar with HTML (esp. URL idiosyncrasies), so shortening is often simpler.

Some shorteners also provide added value such as statistics gathering (e.g. goo.gl’s click analytics). For example, here is the analytics page for a link I posted Apr 10, 2017 to HKJ’s review of the DPS5015. The geographical distribution of clicks is often interesting (but here it is rather boring, mostly USA and Russia). But a link to a review of the LG D1 was clicked more in China than USA, possibly through some Chinese site (vs. BLF).

This is totally irrelevant ———-

[teacher]

@gauss163

^ Meta-level tangents about using the platform and working around its problems are common in every web forum. That’s how many users learn to use the forum.

gauss…. :person_facepalming: … I’m not raggin’ on you my friend. But this is what I am talking about…. I even “tried” to look it up. . No joy…
Given, I am not the sharpest knife in the drawer… but this sounds like it came straight from a Jargon Generator … :weary:

Meta-level tangents = 元級切線 ……. both of these mean about the same thing to me.

Your gonna have to try and “dumb it down” a bit more or at least provide a link so I can find out what you mean when you write something like this…. please.

Maybe that is how I learned how to use forums…. but at this rate I’ll never know for sure.

[deleted-200707]

unsub+

[teacher]

@gauss163

^ Meta-level discussion refers to discussion about the operation of the forum (e.g. stackexchange meta sites ) and tangential discussions are those that veer off the main track, just like a tangent to a curve touches it then veers off.

:+1: … Thank you sir.

@chinooker

unsub+

? . Unknown Subject plus ???

[deleted-200707]

unsubscribed :person_facepalming:

[teacher]

/\\\\\
Oh, my bad. :person_facepalming: … But thanks for letting us know. :+1: …

[chops728]

I just completed a trivial test with 3 chargers—- 3100 / 3400 / Liitokala 500
With a 3 cell group of NOS laptop pulls that were charged and matched a year ago on the 3400 ( didn’t want to abuse good cells)
My conclusion—the BT-3100 mah reading is around 5-6 percent higher than the other 2 chargers—The 3400 and the 500 test fairly close on average—amazing considering the Opus’ discharge @ 1 amp and the Lii 500 @ .5 amp—— When you compare the readings as a group,then figure their percentage match—all 3 chargers are very close in that regard—- this set of cells with all 3 chargers is around 4% match— Not sure why there is #1 cell that is a flyer ( target term) but the overall average is pretty consistent

BT-3100 / Lii 500 / BT3400

cell #1 2122 / 2161 / 1999

cell #2 2208 / 2070 / 2070

cell #3 2166 / 2077 / 2083

[teacher]

/\\\\\\

Thanks for the info & pics of thr LiteOn gauss!! Much appreciated….

[Yourrid]

So can anyone sum up what the differences are between the C3400 & C3100 v2.1?

[Nev]

The 3400 discharge to 3.1v ,3100 discharge to 2.8.

[teacher]

@Yourrid

So can anyone sum up what the differences are between the C3400 & C3100 v2.1?

It would depend on when you bought the 3400…….

[Yourrid]

@teacher

@Yourrid

So can anyone sum up what the differences are between the C3400 & C3100 v2.1?

It would depend on when you bought the 3400…….

Haven’t bought one yet. My C3100 v1 is on its last leg, so I’m looking to get another…. or “upgrade” to the SkyRC MC3000

[teacher]

If you upgrade to the MC-3000 just be aware of what you are getting to. I only thought I knew when I got one…. :person_facepalming:

A great charger no doubt. :+1: Much to complicated for me though.

[Yourrid]

I love the UI of the Opus, but I feel like it’s worth the price point. I constantly get ghost battery indications (screen reads FULL after I take the battery out), bad voltage readings (full battery reads 0.2v), the fan has been giving me trouble for 2 years and just died, and one of the negative terminals snapped off so I’m left with 3 slots.

So I’ve heard that the newer Opus chargers have fixed these issues, but it makes me wonder if I should just invest in a higher priced charger

[teacher]

I don’t know if all the issues have been “fixed” or not on the OPUS. We discussed a bunch in this thread & a couple of others too.
My 3100 v2.2 works fine & I have no issues at all now that I upgraded the power supply.
Never had any issues at all with the Lii 500… it is my favorite.

Good luck choosing.

[light_junkie]

@Yourrid

So can anyone sum up what the differences are between the C3400 & C3100 v2.1?

I know this is an old old thread but I bought the 3400 ,and when I asked the seller from e-bay (rdna)told the difference was the “sofrtware”
That’s all he knew or told me I have had it a little over a year and the only issue I have had is the power source melted and the seller is sending me a new one under warranty

[joelbnyc]

@gauss163

Below are some photos of the internals of my LITEON 12V/5.5A 66W PA-1660-2SA1

That LITEON is sold out, and my Opus V2.2 came with the KYT 12V 3A power supply.

Is there another power supply you can recommend for this charger? Will any old 12V >=4A power supply work better than the supplied supply, or are there characteristics I should be looking for, like that efficiency standard?

[fiat84]

At the 7 second mark of the video shows the Opus BT-C3100 V2.2 Charger sparking electricity, yellow flashes at the input plug connection every time I plug in power using the included 12 Volt charger(also used another 12V charger which also is sparking). Tested the included charger with my multi-meter and the charger is only 12.3 Volts DC. Is this a FIRE HAZARD? None of my other battery chargers ever spark. Connected the charger through my OPTI-UPS Grounded Surge Protector so its not an outlet issue, which I also tested and works fine with other electronics.

Reading through this thead on Page 4 about the “…The Opus will draw more than 3A in peak current, in my test I measured 6A for nearly 0.02 second. Then 0A for 0.03 seconds, bringing the average below 3A.” and reviewer listed “Power adapter: DC 12V, 3.0A ( Output ), 100 – 240V, 50 / 60Hz ( Input ) ”

sparking picture

Short video:

Opus BT-C3100 V2.2 Charger sparking Short vid

Longer video

Opus BT-C3100 V2.2 sparks when plugged into outlet with 12 Volt adaptor

eBay purchase Link

[ARsee]

Plug the power adapter into the charger first, then the power supply to the wall.

[teacher]

Best I remember this was discussed in one of these threads. It is normal . Mine does it. If you plug the 12 V in before you do the main it (of course) won’t do it.