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

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teacher
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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:
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unsubscribed Facepalm

teacher
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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

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chops728
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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

gauss163
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Below are some photos of the internals of my LITEON 12V/5.5A 66W PA-1660-2SA1 Recall that I guesstimated in post #241 that it was manufactured in the last year or two based on the MSP application date of 2015-10-29 and the latest efficiency level VI. That turned out to be right on the money. The first photo shows the PCB is dated 1542, i.e. week 42 of 2015, i.e. Oct. 11, 2015. Other components (caps, inductors) are also dated mid-late 2015. The components that are visible appear to be good quality, e.g. Rubycon ZLH and Nippon Chemi-con KY capacitors. It will likely have a very long life, esp. powering a small load like the Opus. It is surely a great deal at $10 shipped. Looks like there are still some available (follow the first link above).

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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

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

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

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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

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Yourrid
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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
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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

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Yourrid
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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
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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
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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
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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?

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