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

690 posts / 0 new
Last post
chops728
Offline
Last seen: 1 hour 59 min ago
Joined: 08/30/2014 - 16:00
Posts: 541
Location: Swampland,La

teacher—I didn’t forget you—great way to sum it all up—are you the guy around the camp fire that keeps the two drunk friends from fighting—LOL

teacher
teacher's picture
Offline
Last seen: 2 hours 48 min ago
Joined: 02/23/2016 - 19:04
Posts: 4711
Location: NE & SW Alabama

chops728 wrote:
teacher—I didn’t forget you—great way to sum it all up—are you the guy around the camp fire that keeps the two drunk friends from fighting—LOL
Thank you chops, I appreciate that. Thumbs Up . But hey, even a blind hog finds an acorn now and then. Big Smile

Hmmmmm, that would depend on who the “two friends were”. Wink

      You never know how a horse will pull until you hook him up to a heavy load. / Paul "Bear" Bryant ~/~\~ "Slow is Smooth, Smooth is Fast"

       Texas Lumens Flashlights  <>   M4D M4X Deals : sign up - save $$$$    ||||   Confucius say -- Baaa-haaaaaa......   tongue-out

         Rudeness Level /\ mΩ /\ {width:70%} /\ LightWiki /\ LED Tint Chart /\ LED Tint Picture /\ Xlamp size chart /\ BatteryU                   Flashaholic? Need Professional Help???   wink   /\ TheOriginal /\ TAB /\ LightSearch /\ BatterySearch /\ 14500's /\ DiCal                                                       

chops728
Offline
Last seen: 1 hour 59 min ago
Joined: 08/30/2014 - 16:00
Posts: 541
Location: Swampland,La

gauss163 wrote:
HKJ wrote:
gauss163 wrote:
^^^ 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
teacher's picture
Offline
Last seen: 2 hours 48 min ago
Joined: 02/23/2016 - 19:04
Posts: 4711
Location: NE & SW Alabama

gauss163 wrote:
^^^ 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…. Facepalm .. I’m not raggin’ on you my friend. But this is what I am talking about…. I even “tried” to look it up. Smile . No joy…
Given, I am not the sharpest knife in the drawer… but this sounds like it came straight from a Jargon GeneratorTired

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. Smile

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

      You never know how a horse will pull until you hook him up to a heavy load. / Paul "Bear" Bryant ~/~\~ "Slow is Smooth, Smooth is Fast"

       Texas Lumens Flashlights  <>   M4D M4X Deals : sign up - save $$$$    ||||   Confucius say -- Baaa-haaaaaa......   tongue-out

         Rudeness Level /\ mΩ /\ {width:70%} /\ LightWiki /\ LED Tint Chart /\ LED Tint Picture /\ Xlamp size chart /\ BatteryU                   Flashaholic? Need Professional Help???   wink   /\ TheOriginal /\ TAB /\ LightSearch /\ BatterySearch /\ 14500's /\ DiCal                                                       

chinooker
chinooker's picture
Offline
Last seen: 5 hours 7 min ago
Joined: 12/16/2015 - 13:27
Posts: 572

unsub+

teacher
teacher's picture
Offline
Last seen: 2 hours 48 min ago
Joined: 02/23/2016 - 19:04
Posts: 4711
Location: NE & SW Alabama

gauss163 wrote:
^^^ 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.
Thumbs Up … Thank you sir. Smile

chinooker wrote:
unsub+
????? . Unknown Subject plus ???

      You never know how a horse will pull until you hook him up to a heavy load. / Paul "Bear" Bryant ~/~\~ "Slow is Smooth, Smooth is Fast"

       Texas Lumens Flashlights  <>   M4D M4X Deals : sign up - save $$$$    ||||   Confucius say -- Baaa-haaaaaa......   tongue-out

         Rudeness Level /\ mΩ /\ {width:70%} /\ LightWiki /\ LED Tint Chart /\ LED Tint Picture /\ Xlamp size chart /\ BatteryU                   Flashaholic? Need Professional Help???   wink   /\ TheOriginal /\ TAB /\ LightSearch /\ BatterySearch /\ 14500's /\ DiCal                                                       

chinooker
chinooker's picture
Offline
Last seen: 5 hours 7 min ago
Joined: 12/16/2015 - 13:27
Posts: 572

unsubscribed Facepalm

teacher
teacher's picture
Offline
Last seen: 2 hours 48 min ago
Joined: 02/23/2016 - 19:04
Posts: 4711
Location: NE & SW Alabama

/\/\/\/\/\
Oh, my bad. Facepalm … But thanks for letting us know. Thumbs Up .. Wink

      You never know how a horse will pull until you hook him up to a heavy load. / Paul "Bear" Bryant ~/~\~ "Slow is Smooth, Smooth is Fast"

       Texas Lumens Flashlights  <>   M4D M4X Deals : sign up - save $$$$    ||||   Confucius say -- Baaa-haaaaaa......   tongue-out

         Rudeness Level /\ mΩ /\ {width:70%} /\ LightWiki /\ LED Tint Chart /\ LED Tint Picture /\ Xlamp size chart /\ BatteryU                   Flashaholic? Need Professional Help???   wink   /\ TheOriginal /\ TAB /\ LightSearch /\ BatterySearch /\ 14500's /\ DiCal                                                       

chops728
Offline
Last seen: 1 hour 59 min ago
Joined: 08/30/2014 - 16:00
Posts: 541
Location: Swampland,La

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
teacher's picture
Offline
Last seen: 2 hours 48 min ago
Joined: 02/23/2016 - 19:04
Posts: 4711
Location: NE & SW Alabama

/\/\/\/\/\/\

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

      You never know how a horse will pull until you hook him up to a heavy load. / Paul "Bear" Bryant ~/~\~ "Slow is Smooth, Smooth is Fast"

       Texas Lumens Flashlights  <>   M4D M4X Deals : sign up - save $$$$    ||||   Confucius say -- Baaa-haaaaaa......   tongue-out

         Rudeness Level /\ mΩ /\ {width:70%} /\ LightWiki /\ LED Tint Chart /\ LED Tint Picture /\ Xlamp size chart /\ BatteryU                   Flashaholic? Need Professional Help???   wink   /\ TheOriginal /\ TAB /\ LightSearch /\ BatterySearch /\ 14500's /\ DiCal                                                       

Yourrid
Yourrid's picture
Offline
Last seen: 2 days 2 hours ago
Joined: 05/17/2013 - 09:41
Posts: 717
Location: NE ATL

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

Nev
Offline
Last seen: 28 min 9 sec ago
Joined: 04/06/2017 - 07:50
Posts: 147
Location: U.K.

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

teacher
teacher's picture
Offline
Last seen: 2 hours 48 min ago
Joined: 02/23/2016 - 19:04
Posts: 4711
Location: NE & SW Alabama

Yourrid wrote:
So can anyone sum up what the differences are between the C3400 & C3100 v2.1?
It would depend on when you bought the 3400…….

      You never know how a horse will pull until you hook him up to a heavy load. / Paul "Bear" Bryant ~/~\~ "Slow is Smooth, Smooth is Fast"

       Texas Lumens Flashlights  <>   M4D M4X Deals : sign up - save $$$$    ||||   Confucius say -- Baaa-haaaaaa......   tongue-out

         Rudeness Level /\ mΩ /\ {width:70%} /\ LightWiki /\ LED Tint Chart /\ LED Tint Picture /\ Xlamp size chart /\ BatteryU                   Flashaholic? Need Professional Help???   wink   /\ TheOriginal /\ TAB /\ LightSearch /\ BatterySearch /\ 14500's /\ DiCal                                                       

Yourrid
Yourrid's picture
Offline
Last seen: 2 days 2 hours ago
Joined: 05/17/2013 - 09:41
Posts: 717
Location: NE ATL
teacher wrote:
Yourrid wrote:
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
teacher's picture
Offline
Last seen: 2 hours 48 min ago
Joined: 02/23/2016 - 19:04
Posts: 4711
Location: NE & SW Alabama

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…. Facepalm

A great charger no doubt. Thumbs Up Much to complicated for me though. Smile

      You never know how a horse will pull until you hook him up to a heavy load. / Paul "Bear" Bryant ~/~\~ "Slow is Smooth, Smooth is Fast"

       Texas Lumens Flashlights  <>   M4D M4X Deals : sign up - save $$$$    ||||   Confucius say -- Baaa-haaaaaa......   tongue-out

         Rudeness Level /\ mΩ /\ {width:70%} /\ LightWiki /\ LED Tint Chart /\ LED Tint Picture /\ Xlamp size chart /\ BatteryU                   Flashaholic? Need Professional Help???   wink   /\ TheOriginal /\ TAB /\ LightSearch /\ BatterySearch /\ 14500's /\ DiCal                                                       

Yourrid
Yourrid's picture
Offline
Last seen: 2 days 2 hours ago
Joined: 05/17/2013 - 09:41
Posts: 717
Location: NE ATL

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
teacher's picture
Offline
Last seen: 2 hours 48 min ago
Joined: 02/23/2016 - 19:04
Posts: 4711
Location: NE & SW Alabama

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.

      You never know how a horse will pull until you hook him up to a heavy load. / Paul "Bear" Bryant ~/~\~ "Slow is Smooth, Smooth is Fast"

       Texas Lumens Flashlights  <>   M4D M4X Deals : sign up - save $$$$    ||||   Confucius say -- Baaa-haaaaaa......   tongue-out

         Rudeness Level /\ mΩ /\ {width:70%} /\ LightWiki /\ LED Tint Chart /\ LED Tint Picture /\ Xlamp size chart /\ BatteryU                   Flashaholic? Need Professional Help???   wink   /\ TheOriginal /\ TAB /\ LightSearch /\ BatterySearch /\ 14500's /\ DiCal                                                       

light junkie
light junkie's picture
Offline
Last seen: 3 weeks 5 days ago
Joined: 02/03/2013 - 23:36
Posts: 1680
Location: Sw Az

Yourrid wrote:
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

Lj

joelbnyc
joelbnyc's picture
Offline
Last seen: 1 month 3 weeks ago
Joined: 04/19/2013 - 21:07
Posts: 34

gauss163 wrote:
Below are some photos of the internals of my “LITEON 12V/5.5A 66W PA-1660-2SA1”:http://www.ebay.com/itm/12V-DC-Power-Supply-AC-DC-Adapter-Transformer-5A...

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
Offline
Last seen: 3 weeks 14 hours ago
Joined: 01/27/2018 - 11:22
Posts: 2

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:


Longer video

eBay purchase Link

ARsee
ARsee's picture
Offline
Last seen: 1 hour 20 min ago
Joined: 02/19/2017 - 13:16
Posts: 1052
Location: Right here

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

teacher
teacher's picture
Offline
Last seen: 2 hours 48 min ago
Joined: 02/23/2016 - 19:04
Posts: 4711
Location: NE & SW Alabama

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

      You never know how a horse will pull until you hook him up to a heavy load. / Paul "Bear" Bryant ~/~\~ "Slow is Smooth, Smooth is Fast"

       Texas Lumens Flashlights  <>   M4D M4X Deals : sign up - save $$$$    ||||   Confucius say -- Baaa-haaaaaa......   tongue-out

         Rudeness Level /\ mΩ /\ {width:70%} /\ LightWiki /\ LED Tint Chart /\ LED Tint Picture /\ Xlamp size chart /\ BatteryU                   Flashaholic? Need Professional Help???   wink   /\ TheOriginal /\ TAB /\ LightSearch /\ BatterySearch /\ 14500's /\ DiCal                                                       

hank
hank's picture
Offline
Last seen: 7 hours 23 min ago
Joined: 09/04/2011 - 21:52
Posts: 7347
Location: California

I have the vague recall that those sparks on connecting power are caused by lack of capacitors to handle the surge current — cheap design.
Anyone know more/better? It’s not unusual to see those sparks on a lot of electronics.

ferongr
ferongr's picture
Offline
Last seen: 6 hours 24 min ago
Joined: 04/11/2015 - 07:15
Posts: 140
Location: Athens

The sparks are actually caused by the high voltage smoothing capacitors, due to the high current while they’re filling. Ideally the power supply should have an inrush current limiter (usually NTC resistor) on the input to prevent this but not all of them do since it’s not mandatory.

http://lygte-info.dk/info/SMPS%20workings%20UK.html

Search for NTC.

cera@1967
Offline
Last seen: 7 hours 5 min ago
Joined: 11/19/2013 - 14:45
Posts: 257
Location: Romania

 As a normal procedure , for most of the chargers and power supplies, first insert the main power cable in the 110-220 V , and then connect the secondary to the charger , WITH NO BATTERIES INSERTED ! Somehow , this is common sense...

Adrian

ferongr
ferongr's picture
Offline
Last seen: 6 hours 24 min ago
Joined: 04/11/2015 - 07:15
Posts: 140
Location: Athens

This won’t prevent the sparking since it has nothing to do with whether the output is connected to a load or not.

cera@1967
Offline
Last seen: 7 hours 5 min ago
Joined: 11/19/2013 - 14:45
Posts: 257
Location: Romania

 If the preventing is the problem , just leave the 12V plug in inserted in the battery charger , and connect and disconnect the main supply . As for me , I have the 12V or 5V input for chargers connected ALL the time , and the mains are connected and disconnected thru few wireless plugs in ,with a remote control , as is needed.., I do think that is an elegant and reliable solution (I'm using it for many years ). A professional power supply has the NTC resistor placed in series with the high voltage capacitors , in the main voltage area , so , problem solved...

Adrian

fiat84
Offline
Last seen: 3 weeks 14 hours ago
Joined: 01/27/2018 - 11:22
Posts: 2

Thanks ferongr for your informative link and appreciate the helpful not so common sense answers for us newbees…

ARsee
ARsee's picture
Offline
Last seen: 1 hour 20 min ago
Joined: 02/19/2017 - 13:16
Posts: 1052
Location: Right here

Side by side comparisons with two BT-3400 v3.1’s and 8 fresh batteries.
The fans have cycled several times. I think they’re quiet.

Pages