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View Full Version : BC112C owners, read please


NMT_RACER_BOY
06-29-2002, 06:39 PM
how much do you like this charger? can you charge 3000 without false peaking? what are the specs on it?
thanx!:)

IR8ape
06-29-2002, 08:13 PM
Tekin has always made great chargers, in the past 10 years of using Tekin electronics I have never had a single failure. The 112's can charge 3000 cell packs without hick ups, the problem however is that when this charger was released NI-MH cells were fairly new and things were still to be learned. So yes, it can and does charge 3000's fine but the control over charging NI-MH cells is limited compared to the newer chargers on the market.

IR8ape
06-29-2002, 08:14 PM
Charging profiles...

NMT_RACER_BOY
06-29-2002, 08:51 PM
do you have one?
does it display "E24" when powered up?
it means it's normal?
and is ther diffrent software version of the 112c?
can it charge 2 6 cell pack at once?

IR8ape
06-29-2002, 10:14 PM
Yup I have one. :cool:

As far as the code goes, sounds like an error message (see pic below). If you are plugging the charger in to a 110v wall outlet turn the charger over and make sure that the 2 tamiya style connectors in the cavity are DISconected.

As far as I know there was only one software version, I could be wrong.

According to the paperwork it can charge from 1 to 12 cells using 110v, 1 to 12 cells using external 24v, and 1 to 7 cells using external 12v. I don't recommend charging multiple packs at once with any single peak charger. The most batteries I have charged at a single time is 10, it seemed to work fine, HOWEVER it is critical that you keep all wires as short as possible while charging packs larger than 7 cells.

NMT_RACER_BOY
06-29-2002, 10:30 PM
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=1743698992
by the end of his post, it says E24 is normal... is this guy scamming?

IR8ape
06-29-2002, 11:13 PM
I doubt the guy is trying to pull a fast one. I just hooked up my charger to 110v, 12v, and 24v , tested every charge profile, forced conection errors and power supply errors and I never saw an "e24". I only know what my charger is and does, this guy could possibly have a newer or older model. As always use your head when you purchase unseen untested items, personally I never bid on anything unless I am will to lose that amount of money... good luck!

IR8ape
06-29-2002, 11:23 PM
I noticed something in his picture, he has a 15 amp fuse in the charger which I thought was odd becuase mine is marked and uses 20 Amp fuses. The charger on the front cover of the Tekin manual is marked 15 Amp and has a 15 amp fuse in it, so apearently there ARE variences in chargers. Hope that helps

3xs
06-30-2002, 12:09 AM
The E24 is the software version not an error code I don't know about the 112c's but the 112A's had several different software versions, the version you have will flash up for a split second at power up and won't show again, this is what you're seeing.If I'm not mistaken the E24 version is one of the early if not the first versions the only difference in the versions is the cold start was eliminated in later versions and the drop back voltage was changed.Either charger will charge 3000's with no problems.

Grizzbob
06-30-2002, 03:38 AM
You're right, e24 was an early firmware version, before 3000mah NiMh cells came out(the 112 series chargers have actually been around for awhile, & I believe that you should see the same firmware & error codes on a 112a as a 112C). If you're considering it to charge NiMh's with, you really need it to have a firmware version of h27 or higher(the h versions are the latest ones, & h31 I believe was the very last one) to safely charge them. With an older version, the charger will not shut off the charge early enough, so it'll likely overcharge & damage NiMh's(those cells are MUCH more sensitive to overcharging than NiCd's are). However, it IS possible to have the firmware updated, if you're willing to send it in for service(& even though Tekin appears to be done for as a company, there is a group called Express Tech that works on them & can do firmware updates, so they can help you for a nominal fee).......:)

NMT_RACER_BOY
06-30-2002, 01:44 PM
cool, on version h27 and h31 can you see the single flickering code when it's powered up? what fuse does the newer ones use?
do you have a site to this express ppl? thanx

Grizzbob
06-30-2002, 08:15 PM
Yes, you can see which firmware version it has when it powers up(it'll appear for a second or two), & there is also an h28, h29 & h30(I believe the "h" denotes what year it was programmed & the number is the version, much like Microsoft's Internet Explorer 3, 4, 5, etc.). As far as I know, all 112 series chargers use a 15 amp fuse(my 112a does), as for Express Tech's website, I'm not certain(I'm sure one of the guys will have an idea, I just can't remember it right now).......:)

NMT_RACER_BOY
06-30-2002, 08:36 PM
cool! thanx for all the info
but i am still confused with the part when you said "h" means the year... you mean like H is like year 1999 and diffrent year has diffrent letter? the newest one avalable is H31?


please reply and thanx for all the info!

cabbynate
07-01-2002, 01:52 AM
When you first plug in the charger it tells you what software it has. You need h27 or higher to charge nimh cells.

Grizzbob
07-01-2002, 02:01 AM
That's pretty much it, NMT_RACER_BOY, the H31 code is the last one they came up with before they stopped upgrading them(basically when they stopped building them). I don't know ALL the details of it, but the letter is a reference to the year they came up with the firmware program(but I don't know exactly which letter means which year, only that the "H" ones are the last ones, & the h27 through h31's are the only ones programmed to properly charge 3000mah NiMh's)......:)

NMT_RACER_BOY
07-01-2002, 04:17 PM
Cool!
thanx alot guys!
i hope i can find one of theese beuties!
is there diffrent versions of the discharger?
i am having hard time trying to find one! i never saw one on ebay!


thanx for helping!:)

Grizzbob
07-01-2002, 05:28 PM
I've seen a few of their dischargers on occaision, but I don't think there's a great number of them out there. However, I do see a fair number of the chargers on eBay(& in fact, that's where I got my BC112a from, I've been very pleased with it). The one thing I'd suggest when you look there for one, is that if the auction description doesn't specifically mention the firmware version, then you should email the seller & ask him which version his has before you place a bid......:)

highroller
07-02-2002, 01:11 AM
The e24 was the very first models around 88 or 89 then next was h27 and very last was h34 very few of those as that was the time Tekin products began drying up. All work with Nicads and NiMh. For Nimh use the p, p1, p0 depending on which software it displays and disable the reflex mode, for the Sanyo you can use the p2. I have 5 models of the 112A with the 870 being my very first competitive level charger.
There is a guy doing repair work on Tekin products the info is
Express Tech
PMB176
3245 B Golden Lantern
Dana Point, CA 92629
Tel. (949)388-9042
email: zurdo-13@paxbell.net
web http//www.expresstech.cjb.net
The newer versions of the 112a have 2 fuses and a plug(sensor wire) for connecting to the Discharger.

NMT_RACER_BOY
07-02-2002, 12:47 PM
hmmm...
your site link doesn't work!
do you know how much it is to update a 112C to the newest version? thanx:)

Tee
07-02-2002, 04:10 PM
Hello,
Can anybody explain what the Infra Red
Diode does? I got one on my "latest" h27 charger. I figure it talks to one of those pocket HP printers that people use with Turbo Dynos, but "what" does it print out, if in fact that's what it is? Thanks.

highroller
07-03-2002, 02:39 AM
There was a wire that was used to plug into the Discharger. The 112 could also be connected and run off the discharger for cycling.
Tekin was coming out or adding on a serial port to the Discharger to be able to print graphs but it never made it, maybe a few got out like a few of the H34 chargers.

Those who have had upgrades done to their 112s, what software is it displaying?