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

Anyone have a link to where i could download the manual for the C3100/C3400?

Thanks, now I’ll be able to read up before my BT-C3400 arrives (by Saturday).

Ended up ordering the BT-3100 with the European ac/dc power adapter (KYT120300BV), come with a Euro/US add-on adapter, which I guess I lost.
Where in the USA can I order a replacement AC/DC power unit, for my BT-3100?
(I would rather just get the whole power unit, and not have to use the euro/US adapter)

No matter what I try I can’t get my BT-C3400 to give me the mAh on the batteries, it just gives me 4 dashes (- - - -)?

Dumb question, but are you waiting for the test cycle to finish? Until it fully charges, then dicharges the cell, there is no mAh readout.

KuoH

…unless the 3400 has some other code issues not present in the 3100.

This unit requires =significant= patience. Even at higher rates, it can take 3 hours to discharge and 4 hours to charge for todays 3,xxx mah cells. The best you can do is 2 amp charge and 1 amp discharge. Do the math :wink:

I think it’s my lack of patience that is the issue.

Its a shame Kreisl did not answer your question on CPF.

Flashaholic
Join Date
Jul 2012
Posts
246

Re: XTAR VP4 verses OPUS BT C3100

Originally Posted by ShineOnYouCrazyDiamond
the BT-C3400 is the same as the BT-C3100 v2.1 just re-branded
just rebranded?

i don't think so.

C3400 and C3100v2.1 are very similar, that's true. there are differences, i can't detail.

Moose and squirrel, together again. :)

The squirrel is still taking over my life. I could not move the bludger from my signature the cheeky bugger.

I was wondering how the squirrel got into your signature for just one post. :evil:

Ran across this thread on a Google search and wondering if I might be able to use the BT-C3400 Charger Analyzer to test the mAh capacity of my cell phone’s Li-ion Batteries? Since cell batteries are of course square and will not load traditionally into the BT-C3400… my plan is to open the charger/analyzer and affix jumper leads to the /- terminal and then run/secure those leads to the/- terminals of my cell phone battery. Any thoughts on this would be greatly appreciated… also interested in any leads on any other chargers/mAh analyzers which may be more suitable for testing mAh capacity on cell phone batteries(?) Incidentally, I find it rather odd that someone has not designed a (economical) charger/analyzer to test all the square cell phone batteries on the market these days!?

I hope this thread covers your concern:

As to your next concern about a dedicated charger/analyzer for cellphone batteries, perhaps IMO, manufacturers are afraid it won’t be a commercial success for the sole reason that only few people buy extra batts for their phones.

Great info (thanks) already planned on gutting my universal fit mobile phone charger, now looks like the bigger challenge is finding a relatively inexpensive charger/analyzer that can be set to charge low enough for a accurate mAh reading re my Samsung 3.8v 2600 mAh li-io’s. There are a few bare bones li-ion charge analyzers on ebay (price is sweet) but the Asian/English instructions look a bit challenging and unfortunately most listings aren’t providing a min/max charge rate spec, nor are they confirming if their units display analyzed capacity in mAh or %(?) Anyone know the min charge rate I should be shooting for in a charge analyzer to get a good mAh read for mobile batts… 50-60-100ma? Anyone by chance ever seen a c/a on ebay that even comes close to such low charge/test currents? Should I just go with the BT-C3400 and call it a day?

btw… had no intentions of high jacking this thread. If need be I can copy, paste and repost in the other thread if need be(?)

A new thread with a more targeted title would attract more suggestions

From what I’ve read from several reviews. The Opus BT-C3100 V2.2 is exactly the same as the BT-C3400 V4.4.

The BT-C3400 is branded with a different model number for other marketing.

Currently on sale for the next 5 days, for $33.16 (US Plug) with free shipping.

http://www.gearbest.com/chargers/pp_173012.html?vip=85916

LCD Screen
Auto Circuit Detection
Built-in Protected Circuit
Over Voltage Protection
Short-Circuit Protection
Over-Charging Protection
Over-Discharging Protection

Operating Voltage 12V DC
Power Adapter Input: 100~240V~, 50/60Hz
Output: 12V DC, 3.0A
Charging Current range 200,300,500,700,1000,1500,2000
Discharging Current range 200,300,500,700,1000mA
Max. Charging Capacity 20000mAh
Operating Temperature 0 to 40 ℃
Voltage Deviation <0.04v
Current Deviation <5%

Just order the BT-C3100 V 2.2 with a Sky Ray 5 XML-U2, hopefully Expedited Shipping is worth it.

The BT-C3400 will charge 'C' batteries and the BT-C3100 will not.

Welcome to BLF,
Sorry this being your first post and all, but……

The charger has a standard 12V DC connector. You can just buy a 12V AC adapter with the desired line cord/plug as long as it can output at least 3 amps at 12V. Because of the issues on the V2.0, I actually use a 6 amp AC adapter, and that solves the problems that v2.1 fixed. The problem is that the charger basically uses PWM to charge, so during the charge cycle the peak current is a lot more than the average current, and the original 3 amp supply didn’t have enough output to provide the peak current required. A larger power supply solves that problem.